Add support for GW-BX5600

[izivkov]

@Smanthl

I looked at the logs you sent me. It seems like they have changed the protocol for this watch quite a bit.

I filtered the relevant log file into file out.txt under src/examples directory. The last command is the one setting the time:

[91m[19:30:35.027357] #816 Write Req Handle: 0x000E Value: 09EA07010A001E230605

But there are some commands ahead of it that I am not familiar with.

I like to add support for this watch, but I feel that I will not be able to do it without the watch. I will park this issue for now.

This will be resolved in the future perhaps using some AI tools.

You are welcome to try to resolve this, and I can support you.

Regards
Ivo

[Smanthl]

Oh, that's a pity. Thank you so much for your help. I'm not a professional developer, and my abilities are limited. I hope we can solve this together with AI or other developers in the future. Thank you again.

[izivkov]

Yes, I'll get back to this in the near future. Just at the moment I'm trying to finsh adding support for a fitness capable watch. I would really like to add support for the gw-bx5600 as well. If I have you a Python script to run, maybe you can run it and save the output. Ivo

…

On Wed, Jan 14, 2026, 8:40 PM Smanthl ***@***.***> wrote: *Smanthl* left a comment (izivkov/gshock_api#2) <#2 (comment)> Oh, that's a pity. Thank you so much for your help. I'm not a professional developer, and my abilities are limited. I hope we can solve this together with AI or other developers in the future. Thank you again. — Reply to this email directly, view it on GitHub <#2 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AA7M37XLUOIDVCAWASZ5GT34G3VXXAVCNFSM6AAAAACRSR5AUSVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTONJSGQ3DMOBUHE> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[Smanthl]

Yes, of course, I look forward to your Python script and would love to test it.

[izivkov]

@Smanthl

I have updated the GW-BX5600 branch. I have created a new script gshock_server_bx.py in the examples directory. You can run it from this directory using the command:

uv run gshock_server_bx.py

It is supposed to set the time to a hardcoded value, so it will not be correct time, but let's see if the time will change. If it does not change, let me know, and we might have to comment out some of the commands we send it, until it works.

Cheers,
Ivo

[Smanthl]

I tried running the script:

pi@raspberrypi:~/gshock_api-GW-BX5600/src/examples $ PYTHONPATH=../ uv run gshock_server_bx.py
2026-01-16 11:53:22,112 gshock_api.logger INFO: ==============================================================================================
2026-01-16 11:53:22,112 gshock_api.logger INFO: Short-press lower-right button on your watch to set time...
2026-01-16 11:53:22,113 gshock_api.logger INFO:
2026-01-16 11:53:22,113 gshock_api.logger INFO: If Auto-time set on watch, the watch will connect and run automatically up to 4 times per day.
2026-01-16 11:53:22,113 gshock_api.logger INFO: ==============================================================================================
2026-01-16 11:53:22,113 gshock_api.logger INFO:
2026-01-16 11:53:22,113 gshock_api.logger INFO: Waiting for connection...
2026-01-16 11:53:32,700 gshock_api.logger INFO: ✅ Found: CASIO GW-BX5600 (D3:02:2C:4E:E0:26)
2026-01-16 11:53:34,426 gshock_api.logger INFO: Connected...
2026-01-16 11:53:34,717 gshock_api.logger INFO: name: CASIO GW-BX5600
2026-01-16 11:53:34,717 gshock_api.logger INFO: Starting GW-BX5600 initialization sequence...
2026-01-16 11:53:34,718 gshock_api.logger INFO: Sending raw command: handle=000C, value=22
2026-01-16 11:53:34,719 gshock_api.logger INFO: Sending raw command: handle=000C, value=10
2026-01-16 11:53:34,720 gshock_api.logger INFO: Sending raw command: handle=000E, value=23434153494F2047572D42583536303000000000
2026-01-16 11:53:34,912 asyncio ERROR: Task exception was never retrieved
future: <Task finished name='Task-9' coro=<AppInfoIO.on_received..set_app_info() done, defined at /home/pi/gshock_api-GW-BX5600/src/gshock_api/iolib/app_info_io.py:30> exception=RuntimeError('AppInfoIO.result is not set')>
Traceback (most recent call last):
File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/iolib/app_info_io.py", line 62, in set_app_info
raise RuntimeError("AppInfoIO.result is not set")
RuntimeError: AppInfoIO.result is not set
2026-01-16 11:53:35,156 gshock_api.logger INFO: Sending raw command: handle=000C, value=26
2026-01-16 11:53:35,157 gshock_api.logger INFO: Sending raw command: handle=000C, value=28
2026-01-16 11:53:35,158 gshock_api.logger INFO: Sending raw command: handle=000C, value=20
2026-01-16 11:53:35,302 gshock_api.logger INFO: Unknown characteristic key received: 38
2026-01-16 11:53:35,399 asyncio ERROR: Exception in callback BleakClientBlueZDBus._register_notify_fd_reader..on_data() at /home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py:870
handle: <Handle BleakClientBlueZDBus._register_notify_fd_reader..on_data() at /home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py:870>
Traceback (most recent call last):
File "/usr/local/lib/python3.12/asyncio/events.py", line 84, in _run
self._context.run(self._callback, *self._args)
File "/home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py", line 894, in on_data
callback(bytearray(data))
File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/connection.py", line 42, in notification_handler
message_dispatcher.MessageDispatcher.on_received(data)
File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/message_dispatcher.py", line 119, in on_received
MessageDispatcher.data_received_messageskey
File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/iolib/watch_condition_io.py", line 73, in on_received
raise RuntimeError("WatchConditionIO.result is not set")
RuntimeError: WatchConditionIO.result is not set
2026-01-16 11:53:35,497 gshock_api.logger INFO: Unknown characteristic key received: 32
2026-01-16 11:53:35,661 gshock_api.logger INFO: Sending raw command: handle=000C, value=28
2026-01-16 11:53:35,662 gshock_api.logger INFO: Sending raw command: handle=000C, value=20
2026-01-16 11:53:35,663 gshock_api.logger INFO: Sending raw command: handle=000C, value=28
2026-01-16 11:53:35,665 gshock_api.logger INFO: Sending raw command: handle=0017, value=051D001D00240024012402
2026-01-16 11:53:35,665 gshock_api.logger INFO: write failed: handle 23 not in characteristics map
2026-01-16 11:53:35,665 gshock_api.logger INFO: Sending raw command: handle=0019, value=020F001D000106065E761901FFFFFFFFFFFF0F001D020302000000FFFFFFFFFFFFFFFF
2026-01-16 11:53:35,665 gshock_api.logger INFO: write failed: handle 25 not in characteristics map
2026-01-16 11:53:35,665 gshock_api.logger INFO: Sending raw command: handle=0017, value=031E001E001E00
2026-01-16 11:53:35,666 gshock_api.logger INFO: write failed: handle 23 not in characteristics map
2026-01-16 11:53:35,666 gshock_api.logger INFO: Sending raw command: handle=0019, value=0607001E005E7620040007001E01190124040007001E02000000000014002400014036B9186DB50F41405C90B4916CA46E0314002401014041D841355475A3406176227D028A1E0214002402014049C0000000000000000000000000000000
2026-01-16 11:53:35,666 gshock_api.logger INFO: write failed: handle 25 not in characteristics map
2026-01-16 11:53:35,666 gshock_api.logger INFO: Sending raw command: handle=0017, value=061F001F061F011F071F021F08
2026-01-16 11:53:35,666 gshock_api.logger INFO: write failed: handle 23 not in characteristics map
2026-01-16 11:53:35,666 gshock_api.logger INFO: Sending raw command: handle=0019, value=0614001F005348414E474841490000000000000000000014001F0653484100000000000000000000000000000014001F01544F4B594F0000000000000000000000000014001F0754594F00000000000000000000000000000014001F0228555443290000000000000000000000000014001F08555443000000000000000000000000000000
2026-01-16 11:53:35,666 gshock_api.logger INFO: write failed: handle 25 not in characteristics map
2026-01-16 11:53:35,666 gshock_api.logger INFO: Sending raw command: handle=000E, value=09EA07010A001E23060501
2026-01-16 11:53:35,789 asyncio ERROR: Exception in callback BleakClientBlueZDBus._register_notify_fd_reader..on_data() at /home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py:870
handle: <Handle BleakClientBlueZDBus._register_notify_fd_reader..on_data() at /home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py:870>
Traceback (most recent call last):
File "/usr/local/lib/python3.12/asyncio/events.py", line 84, in _run
self._context.run(self._callback, *self._args)
File "/home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py", line 894, in on_data
callback(bytearray(data))
File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/connection.py", line 42, in notification_handler
message_dispatcher.MessageDispatcher.on_received(data)
File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/message_dispatcher.py", line 119, in on_received
MessageDispatcher.data_received_messageskey
File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/iolib/watch_condition_io.py", line 73, in on_received
raise RuntimeError("WatchConditionIO.result is not set")
RuntimeError: WatchConditionIO.result is not set
2026-01-16 11:53:35,984 gshock_api.logger INFO: Unknown characteristic key received: 32
2026-01-16 11:53:36,081 asyncio ERROR: Exception in callback BleakClientBlueZDBus._register_notify_fd_reader..on_data() at /home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py:870
handle: <Handle BleakClientBlueZDBus._register_notify_fd_reader..on_data() at /home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py:870>
Traceback (most recent call last):
File "/usr/local/lib/python3.12/asyncio/events.py", line 84, in _run
self._context.run(self._callback, *self._args)
File "/home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py", line 894, in on_data
callback(bytearray(data))
File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/connection.py", line 42, in notification_handler
message_dispatcher.MessageDispatcher.on_received(data)
File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/message_dispatcher.py", line 119, in on_received
MessageDispatcher.data_received_messageskey
File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/iolib/watch_condition_io.py", line 73, in on_received
raise RuntimeError("WatchConditionIO.result is not set")
RuntimeError: WatchConditionIO.result is not set
2026-01-16 11:53:36,228 gshock_api.logger INFO: Sequence complete.
2026-01-16 11:53:36,228 gshock_api.logger INFO: Time set at 2026-01-16 11:53:36.228795 on CASIO GW-BX5600
2026-01-16 11:53:36,522 gshock_api.logger INFO: Waiting for connection...
2026-01-16 11:54:41,332 gshock_api.logger INFO: ✅ Found: CASIO GW-BX5600 (D3:02:2C:4E:E0:26)
2026-01-16 11:54:42,592 gshock_api.logger INFO: Connected...
2026-01-16 11:54:42,981 gshock_api.logger INFO: name: CASIO GW-BX5600
2026-01-16 11:54:42,982 gshock_api.logger INFO: Starting GW-BX5600 initialization sequence...
2026-01-16 11:54:42,982 gshock_api.logger INFO: Sending raw command: handle=000C, value=22
2026-01-16 11:54:42,983 gshock_api.logger INFO: Sending raw command: handle=000C, value=10
2026-01-16 11:54:42,985 gshock_api.logger INFO: Sending raw command: handle=000E, value=23434153494F2047572D42583536303000000000
2026-01-16 11:54:43,127 asyncio ERROR: Task exception was never retrieved
future: <Task finished name='Task-16' coro=<AppInfoIO.on_received..set_app_info() done, defined at /home/pi/gshock_api-GW-BX5600/src/gshock_api/iolib/app_info_io.py:30> exception=RuntimeError('AppInfoIO.result is not set')>
Traceback (most recent call last):
File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/iolib/app_info_io.py", line 62, in set_app_info
raise RuntimeError("AppInfoIO.result is not set")
RuntimeError: AppInfoIO.result is not set
2026-01-16 11:54:43,322 gshock_api.logger INFO: Sending raw command: handle=000C, value=26
2026-01-16 11:54:43,324 gshock_api.logger INFO: Sending raw command: handle=000C, value=28
2026-01-16 11:54:43,325 gshock_api.logger INFO: Sending raw command: handle=000C, value=20
2026-01-16 11:54:43,517 gshock_api.logger INFO: Unknown characteristic key received: 38
2026-01-16 11:54:43,663 asyncio ERROR: Exception in callback BleakClientBlueZDBus._register_notify_fd_reader..on_data() at /home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py:870
handle: <Handle BleakClientBlueZDBus._register_notify_fd_reader..on_data() at /home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py:870>
Traceback (most recent call last):
File "/usr/local/lib/python3.12/asyncio/events.py", line 84, in _run
self._context.run(self._callback, *self._args)
File "/home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py", line 894, in on_data
callback(bytearray(data))
File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/connection.py", line 42, in notification_handler
message_dispatcher.MessageDispatcher.on_received(data)
File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/message_dispatcher.py", line 119, in on_received
MessageDispatcher.data_received_messageskey
File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/iolib/watch_condition_io.py", line 73, in on_received
raise RuntimeError("WatchConditionIO.result is not set")
RuntimeError: WatchConditionIO.result is not set
2026-01-16 11:54:43,665 gshock_api.logger INFO: Unknown characteristic key received: 32
2026-01-16 11:54:43,827 gshock_api.logger INFO: Sending raw command: handle=000C, value=28
2026-01-16 11:54:43,828 gshock_api.logger INFO: Sending raw command: handle=000C, value=20
2026-01-16 11:54:43,829 gshock_api.logger INFO: Sending raw command: handle=000C, value=28
2026-01-16 11:54:43,831 gshock_api.logger INFO: Sending raw command: handle=0017, value=051D001D00240024012402
2026-01-16 11:54:43,831 gshock_api.logger INFO: write failed: handle 23 not in characteristics map
2026-01-16 11:54:43,831 gshock_api.logger INFO: Sending raw command: handle=0019, value=020F001D000106065E761901FFFFFFFFFFFF0F001D020302000000FFFFFFFFFFFFFFFF
2026-01-16 11:54:43,831 gshock_api.logger INFO: write failed: handle 25 not in characteristics map
2026-01-16 11:54:43,831 gshock_api.logger INFO: Sending raw command: handle=0017, value=031E001E001E00
2026-01-16 11:54:43,831 gshock_api.logger INFO: write failed: handle 23 not in characteristics map
2026-01-16 11:54:43,832 gshock_api.logger INFO: Sending raw command: handle=0019, value=0607001E005E7620040007001E01190124040007001E02000000000014002400014036B9186DB50F41405C90B4916CA46E0314002401014041D841355475A3406176227D028A1E0214002402014049C0000000000000000000000000000000
2026-01-16 11:54:43,832 gshock_api.logger INFO: write failed: handle 25 not in characteristics map
2026-01-16 11:54:43,832 gshock_api.logger INFO: Sending raw command: handle=0017, value=061F001F061F011F071F021F08
2026-01-16 11:54:43,832 gshock_api.logger INFO: write failed: handle 23 not in characteristics map
2026-01-16 11:54:43,832 gshock_api.logger INFO: Sending raw command: handle=0019, value=0614001F005348414E474841490000000000000000000014001F0653484100000000000000000000000000000014001F01544F4B594F0000000000000000000000000014001F0754594F00000000000000000000000000000014001F0228555443290000000000000000000000000014001F08555443000000000000000000000000000000
2026-01-16 11:54:43,832 gshock_api.logger INFO: write failed: handle 25 not in characteristics map
2026-01-16 11:54:43,832 gshock_api.logger INFO: Sending raw command: handle=000E, value=09EA07010A001E23060501
2026-01-16 11:54:44,053 asyncio ERROR: Exception in callback BleakClientBlueZDBus._register_notify_fd_reader..on_data() at /home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py:870
handle: <Handle BleakClientBlueZDBus._register_notify_fd_reader..on_data() at /home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py:870>
Traceback (most recent call last):
File "/usr/local/lib/python3.12/asyncio/events.py", line 84, in _run
self._context.run(self._callback, *self._args)
File "/home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py", line 894, in on_data
callback(bytearray(data))
File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/connection.py", line 42, in notification_handler
message_dispatcher.MessageDispatcher.on_received(data)
File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/message_dispatcher.py", line 119, in on_received
MessageDispatcher.data_received_messageskey
File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/iolib/watch_condition_io.py", line 73, in on_received
raise RuntimeError("WatchConditionIO.result is not set")
RuntimeError: WatchConditionIO.result is not set
2026-01-16 11:54:44,103 gshock_api.logger INFO: Unknown characteristic key received: 32
2026-01-16 11:54:44,200 asyncio ERROR: Exception in callback BleakClientBlueZDBus._register_notify_fd_reader..on_data() at /home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py:870
handle: <Handle BleakClientBlueZDBus._register_notify_fd_reader..on_data() at /home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py:870>
Traceback (most recent call last):
File "/usr/local/lib/python3.12/asyncio/events.py", line 84, in _run
self._context.run(self._callback, *self._args)
File "/home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py", line 894, in on_data
callback(bytearray(data))
File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/connection.py", line 42, in notification_handler
message_dispatcher.MessageDispatcher.on_received(data)
File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/message_dispatcher.py", line 119, in on_received
MessageDispatcher.data_received_messageskey
File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/iolib/watch_condition_io.py", line 73, in on_received
raise RuntimeError("WatchConditionIO.result is not set")
RuntimeError: WatchConditionIO.result is not set
2026-01-16 11:54:44,346 gshock_api.logger INFO: Sequence complete.
2026-01-16 11:54:44,347 gshock_api.logger INFO: Time set at 2026-01-16 11:54:44.346971 on CASIO GW-BX5600
2026-01-16 11:54:44,591 gshock_api.logger INFO: Waiting for connection...

[izivkov]

OK, thanks for info. Did you try the watch with my Android app [Gshock Smart Sync]( https://github.com/izivkov/CasioGShockSmartSync)? Maybe the watches require initial pairing. If you have not tried it, could you download from [here](https://github.com/izivkov/CasioGShockSmartSync/releases/tag/v27.3) and give it a try? Interestingly, a similar watch, *GMW-BZ5000 <https://www.google.com/search?ibp=oshop&prds=pvt:a,pvo:29,imageDocid:2733364118505726100,headlineOfferDocid:559425257968759778,productDocid:559425257968759778,rds:PC_11591132683269212287%7CPROD_PC_11591132683269212287&q=product&sa=X&ved=2ahUKEwiuz5iZqJCSAxXb6ckDHQWZMOkQxa4PegYIAQgGEAY>* works with the app. Thanks, Ivo

…

On Fri, Jan 16, 2026 at 6:58 AM Smanthl ***@***.***> wrote: *Smanthl* left a comment (izivkov/gshock_api#2) <#2 (comment)> I tried running the script: ***@***.***:~/gshock_api-GW-BX5600/src/examples $ PYTHONPATH=../ uv run gshock_server_bx.py 2026-01-16 11:53:22,112 gshock_api.logger INFO: ============================================================================================== 2026-01-16 11:53:22,112 gshock_api.logger INFO: Short-press lower-right button on your watch to set time... 2026-01-16 11:53:22,113 gshock_api.logger INFO: 2026-01-16 11:53:22,113 gshock_api.logger INFO: If Auto-time set on watch, the watch will connect and run automatically up to 4 times per day. 2026-01-16 11:53:22,113 gshock_api.logger INFO: ============================================================================================== 2026-01-16 11:53:22,113 gshock_api.logger INFO: 2026-01-16 11:53:22,113 gshock_api.logger INFO: Waiting for connection... 2026-01-16 11:53:32,700 gshock_api.logger INFO: ✅ Found: CASIO GW-BX5600 (D3:02:2C:4E:E0:26) 2026-01-16 11:53:34,426 gshock_api.logger INFO: Connected... 2026-01-16 11:53:34,717 gshock_api.logger INFO: name: CASIO GW-BX5600 2026-01-16 11:53:34,717 gshock_api.logger INFO: Starting GW-BX5600 initialization sequence... 2026-01-16 11:53:34,718 gshock_api.logger INFO: Sending raw command: handle=000C, value=22 2026-01-16 11:53:34,719 gshock_api.logger INFO: Sending raw command: handle=000C, value=10 2026-01-16 11:53:34,720 gshock_api.logger INFO: Sending raw command: handle=000E, value=23434153494F2047572D42583536303000000000 2026-01-16 11:53:34,912 asyncio ERROR: Task exception was never retrieved future: <Task finished name='Task-9' coro=<AppInfoIO.on_received.<locals>.set_app_info() done, defined at /home/pi/gshock_api-GW-BX5600/src/gshock_api/iolib/app_info_io.py:30> exception=RuntimeError('AppInfoIO.result is not set')> Traceback (most recent call last): File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/iolib/app_info_io.py", line 62, in set_app_info raise RuntimeError("AppInfoIO.result is not set") RuntimeError: AppInfoIO.result is not set 2026-01-16 11:53:35,156 gshock_api.logger INFO: Sending raw command: handle=000C, value=26 2026-01-16 11:53:35,157 gshock_api.logger INFO: Sending raw command: handle=000C, value=28 2026-01-16 11:53:35,158 gshock_api.logger INFO: Sending raw command: handle=000C, value=20 2026-01-16 11:53:35,302 gshock_api.logger INFO: Unknown characteristic key received: 38 2026-01-16 11:53:35,399 asyncio ERROR: Exception in callback BleakClientBlueZDBus._register_notify_fd_reader.<locals>.on_data() at /home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py:870 handle: <Handle BleakClientBlueZDBus._register_notify_fd_reader.<locals>.on_data() at /home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py:870> Traceback (most recent call last): File "/usr/local/lib/python3.12/asyncio/events.py", line 84, in _run self._context.run(self._callback, *self._args) File "/home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py", line 894, in on_data callback(bytearray(data)) File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/connection.py", line 42, in notification_handler message_dispatcher.MessageDispatcher.on_received(data) File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/message_dispatcher.py", line 119, in on_received MessageDispatcher.data_received_messages[key](data) File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/iolib/watch_condition_io.py", line 73, in on_received raise RuntimeError("WatchConditionIO.result is not set") RuntimeError: WatchConditionIO.result is not set 2026-01-16 11:53:35,497 gshock_api.logger INFO: Unknown characteristic key received: 32 2026-01-16 11:53:35,661 gshock_api.logger INFO: Sending raw command: handle=000C, value=28 2026-01-16 11:53:35,662 gshock_api.logger INFO: Sending raw command: handle=000C, value=20 2026-01-16 11:53:35,663 gshock_api.logger INFO: Sending raw command: handle=000C, value=28 2026-01-16 11:53:35,665 gshock_api.logger INFO: Sending raw command: handle=0017, value=051D001D00240024012402 2026-01-16 11:53:35,665 gshock_api.logger INFO: write failed: handle 23 not in characteristics map 2026-01-16 11:53:35,665 gshock_api.logger INFO: Sending raw command: handle=0019, value=020F001D000106065E761901FFFFFFFFFFFF0F001D020302000000FFFFFFFFFFFFFFFF 2026-01-16 11:53:35,665 gshock_api.logger INFO: write failed: handle 25 not in characteristics map 2026-01-16 11:53:35,665 gshock_api.logger INFO: Sending raw command: handle=0017, value=031E001E001E00 2026-01-16 11:53:35,666 gshock_api.logger INFO: write failed: handle 23 not in characteristics map 2026-01-16 11:53:35,666 gshock_api.logger INFO: Sending raw command: handle=0019, value=0607001E005E7620040007001E01190124040007001E02000000000014002400014036B9186DB50F41405C90B4916CA46E0314002401014041D841355475A3406176227D028A1E0214002402014049C0000000000000000000000000000000 2026-01-16 11:53:35,666 gshock_api.logger INFO: write failed: handle 25 not in characteristics map 2026-01-16 11:53:35,666 gshock_api.logger INFO: Sending raw command: handle=0017, value=061F001F061F011F071F021F08 2026-01-16 11:53:35,666 gshock_api.logger INFO: write failed: handle 23 not in characteristics map 2026-01-16 11:53:35,666 gshock_api.logger INFO: Sending raw command: handle=0019, value=0614001F005348414E474841490000000000000000000014001F0653484100000000000000000000000000000014001F01544F4B594F0000000000000000000000000014001F0754594F00000000000000000000000000000014001F0228555443290000000000000000000000000014001F08555443000000000000000000000000000000 2026-01-16 11:53:35,666 gshock_api.logger INFO: write failed: handle 25 not in characteristics map 2026-01-16 11:53:35,666 gshock_api.logger INFO: Sending raw command: handle=000E, value=09EA07010A001E23060501 2026-01-16 11:53:35,789 asyncio ERROR: Exception in callback BleakClientBlueZDBus._register_notify_fd_reader.<locals>.on_data() at /home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py:870 handle: <Handle BleakClientBlueZDBus._register_notify_fd_reader.<locals>.on_data() at /home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py:870> Traceback (most recent call last): File "/usr/local/lib/python3.12/asyncio/events.py", line 84, in _run self._context.run(self._callback, *self._args) File "/home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py", line 894, in on_data callback(bytearray(data)) File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/connection.py", line 42, in notification_handler message_dispatcher.MessageDispatcher.on_received(data) File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/message_dispatcher.py", line 119, in on_received MessageDispatcher.data_received_messages[key](data) File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/iolib/watch_condition_io.py", line 73, in on_received raise RuntimeError("WatchConditionIO.result is not set") RuntimeError: WatchConditionIO.result is not set 2026-01-16 11:53:35,984 gshock_api.logger INFO: Unknown characteristic key received: 32 2026-01-16 11:53:36,081 asyncio ERROR: Exception in callback BleakClientBlueZDBus._register_notify_fd_reader.<locals>.on_data() at /home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py:870 handle: <Handle BleakClientBlueZDBus._register_notify_fd_reader.<locals>.on_data() at /home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py:870> Traceback (most recent call last): File "/usr/local/lib/python3.12/asyncio/events.py", line 84, in _run self._context.run(self._callback, *self._args) File "/home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py", line 894, in on_data callback(bytearray(data)) File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/connection.py", line 42, in notification_handler message_dispatcher.MessageDispatcher.on_received(data) File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/message_dispatcher.py", line 119, in on_received MessageDispatcher.data_received_messages[key](data) File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/iolib/watch_condition_io.py", line 73, in on_received raise RuntimeError("WatchConditionIO.result is not set") RuntimeError: WatchConditionIO.result is not set 2026-01-16 11:53:36,228 gshock_api.logger INFO: Sequence complete. 2026-01-16 11:53:36,228 gshock_api.logger INFO: Time set at 2026-01-16 11:53:36.228795 on CASIO GW-BX5600 2026-01-16 11:53:36,522 gshock_api.logger INFO: Waiting for connection... 2026-01-16 11:54:41,332 gshock_api.logger INFO: ✅ Found: CASIO GW-BX5600 (D3:02:2C:4E:E0:26) 2026-01-16 11:54:42,592 gshock_api.logger INFO: Connected... 2026-01-16 11:54:42,981 gshock_api.logger INFO: name: CASIO GW-BX5600 2026-01-16 11:54:42,982 gshock_api.logger INFO: Starting GW-BX5600 initialization sequence... 2026-01-16 11:54:42,982 gshock_api.logger INFO: Sending raw command: handle=000C, value=22 2026-01-16 11:54:42,983 gshock_api.logger INFO: Sending raw command: handle=000C, value=10 2026-01-16 11:54:42,985 gshock_api.logger INFO: Sending raw command: handle=000E, value=23434153494F2047572D42583536303000000000 2026-01-16 11:54:43,127 asyncio ERROR: Task exception was never retrieved future: <Task finished name='Task-16' coro=<AppInfoIO.on_received.<locals>.set_app_info() done, defined at /home/pi/gshock_api-GW-BX5600/src/gshock_api/iolib/app_info_io.py:30> exception=RuntimeError('AppInfoIO.result is not set')> Traceback (most recent call last): File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/iolib/app_info_io.py", line 62, in set_app_info raise RuntimeError("AppInfoIO.result is not set") RuntimeError: AppInfoIO.result is not set 2026-01-16 11:54:43,322 gshock_api.logger INFO: Sending raw command: handle=000C, value=26 2026-01-16 11:54:43,324 gshock_api.logger INFO: Sending raw command: handle=000C, value=28 2026-01-16 11:54:43,325 gshock_api.logger INFO: Sending raw command: handle=000C, value=20 2026-01-16 11:54:43,517 gshock_api.logger INFO: Unknown characteristic key received: 38 2026-01-16 11:54:43,663 asyncio ERROR: Exception in callback BleakClientBlueZDBus._register_notify_fd_reader.<locals>.on_data() at /home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py:870 handle: <Handle BleakClientBlueZDBus._register_notify_fd_reader.<locals>.on_data() at /home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py:870> Traceback (most recent call last): File "/usr/local/lib/python3.12/asyncio/events.py", line 84, in _run self._context.run(self._callback, *self._args) File "/home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py", line 894, in on_data callback(bytearray(data)) File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/connection.py", line 42, in notification_handler message_dispatcher.MessageDispatcher.on_received(data) File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/message_dispatcher.py", line 119, in on_received MessageDispatcher.data_received_messages[key](data) File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/iolib/watch_condition_io.py", line 73, in on_received raise RuntimeError("WatchConditionIO.result is not set") RuntimeError: WatchConditionIO.result is not set 2026-01-16 11:54:43,665 gshock_api.logger INFO: Unknown characteristic key received: 32 2026-01-16 11:54:43,827 gshock_api.logger INFO: Sending raw command: handle=000C, value=28 2026-01-16 11:54:43,828 gshock_api.logger INFO: Sending raw command: handle=000C, value=20 2026-01-16 11:54:43,829 gshock_api.logger INFO: Sending raw command: handle=000C, value=28 2026-01-16 11:54:43,831 gshock_api.logger INFO: Sending raw command: handle=0017, value=051D001D00240024012402 2026-01-16 11:54:43,831 gshock_api.logger INFO: write failed: handle 23 not in characteristics map 2026-01-16 11:54:43,831 gshock_api.logger INFO: Sending raw command: handle=0019, value=020F001D000106065E761901FFFFFFFFFFFF0F001D020302000000FFFFFFFFFFFFFFFF 2026-01-16 11:54:43,831 gshock_api.logger INFO: write failed: handle 25 not in characteristics map 2026-01-16 11:54:43,831 gshock_api.logger INFO: Sending raw command: handle=0017, value=031E001E001E00 2026-01-16 11:54:43,831 gshock_api.logger INFO: write failed: handle 23 not in characteristics map 2026-01-16 11:54:43,832 gshock_api.logger INFO: Sending raw command: handle=0019, value=0607001E005E7620040007001E01190124040007001E02000000000014002400014036B9186DB50F41405C90B4916CA46E0314002401014041D841355475A3406176227D028A1E0214002402014049C0000000000000000000000000000000 2026-01-16 11:54:43,832 gshock_api.logger INFO: write failed: handle 25 not in characteristics map 2026-01-16 11:54:43,832 gshock_api.logger INFO: Sending raw command: handle=0017, value=061F001F061F011F071F021F08 2026-01-16 11:54:43,832 gshock_api.logger INFO: write failed: handle 23 not in characteristics map 2026-01-16 11:54:43,832 gshock_api.logger INFO: Sending raw command: handle=0019, value=0614001F005348414E474841490000000000000000000014001F0653484100000000000000000000000000000014001F01544F4B594F0000000000000000000000000014001F0754594F00000000000000000000000000000014001F0228555443290000000000000000000000000014001F08555443000000000000000000000000000000 2026-01-16 11:54:43,832 gshock_api.logger INFO: write failed: handle 25 not in characteristics map 2026-01-16 11:54:43,832 gshock_api.logger INFO: Sending raw command: handle=000E, value=09EA07010A001E23060501 2026-01-16 11:54:44,053 asyncio ERROR: Exception in callback BleakClientBlueZDBus._register_notify_fd_reader.<locals>.on_data() at /home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py:870 handle: <Handle BleakClientBlueZDBus._register_notify_fd_reader.<locals>.on_data() at /home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py:870> Traceback (most recent call last): File "/usr/local/lib/python3.12/asyncio/events.py", line 84, in _run self._context.run(self._callback, *self._args) File "/home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py", line 894, in on_data callback(bytearray(data)) File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/connection.py", line 42, in notification_handler message_dispatcher.MessageDispatcher.on_received(data) File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/message_dispatcher.py", line 119, in on_received MessageDispatcher.data_received_messages[key](data) File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/iolib/watch_condition_io.py", line 73, in on_received raise RuntimeError("WatchConditionIO.result is not set") RuntimeError: WatchConditionIO.result is not set 2026-01-16 11:54:44,103 gshock_api.logger INFO: Unknown characteristic key received: 32 2026-01-16 11:54:44,200 asyncio ERROR: Exception in callback BleakClientBlueZDBus._register_notify_fd_reader.<locals>.on_data() at /home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py:870 handle: <Handle BleakClientBlueZDBus._register_notify_fd_reader.<locals>.on_data() at /home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py:870> Traceback (most recent call last): File "/usr/local/lib/python3.12/asyncio/events.py", line 84, in _run self._context.run(self._callback, *self._args) File "/home/pi/gshock_api-GW-BX5600/.venv/lib/python3.12/site-packages/bleak/backends/bluezdbus/client.py", line 894, in on_data callback(bytearray(data)) File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/connection.py", line 42, in notification_handler message_dispatcher.MessageDispatcher.on_received(data) File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/message_dispatcher.py", line 119, in on_received MessageDispatcher.data_received_messages[key](data) File "/home/pi/gshock_api-GW-BX5600/src/gshock_api/iolib/watch_condition_io.py", line 73, in on_received raise RuntimeError("WatchConditionIO.result is not set") RuntimeError: WatchConditionIO.result is not set 2026-01-16 11:54:44,346 gshock_api.logger INFO: Sequence complete. 2026-01-16 11:54:44,347 gshock_api.logger INFO: Time set at 2026-01-16 11:54:44.346971 on CASIO GW-BX5600 2026-01-16 11:54:44,591 gshock_api.logger INFO: Waiting for connection... — Reply to this email directly, view it on GitHub <#2 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AA7M37QFQBERMISQ6LX3JFT4HDG65AVCNFSM6AAAAACRSR5AUSVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTONJZG4YTENJXGI> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[Smanthl]

Yes, I tried it. The app can connect to the watch, but when I click "send to watch" on the time display, the watch doesn't respond. The app settings are indeed correct, such as the time format (12-hour or 24-hour), and the watch changes accordingly and displays a success message, but the time itself doesn't change.

[izivkov]

I updated the branch again. Let us give in another try. Pull the latest from GitHub and run the gshock_server_bx.py script again. Thanks

…

On Fri, Jan 16, 2026 at 10:18 AM Smanthl ***@***.***> wrote: *Smanthl* left a comment (izivkov/gshock_api#2) <#2 (comment)> Yes, I tried it. The app can connect to the watch, but when I click "send to watch" on the time display, the watch doesn't respond. The app settings are indeed correct, such as the time format (12-hour or 24-hour), and the watch changes accordingly and displays a success message, but the time itself doesn't change. — Reply to this email directly, view it on GitHub <#2 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AA7M37SODYYE4NGSOUNTDDD4HD6L7AVCNFSM6AAAAACRSR5AUSVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTONRQGUZTQMBQGY> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[Smanthl]

I have updated and tested it, and the time has not changed. When I briefly press the button in the lower right corner, it enters the connection state and then immediately returns to the time interface.

pi@raspberrypi:~/gshock_api-GW-BX5600/src/examples $ PYTHONPATH=../ uv run gshock_server_bx.py
2026-01-16 15:44:51,125 gshock_api.logger INFO: ==============================================================================================
2026-01-16 15:44:51,125 gshock_api.logger INFO: Short-press lower-right button on your watch to set time...
2026-01-16 15:44:51,126 gshock_api.logger INFO: 
2026-01-16 15:44:51,126 gshock_api.logger INFO: If Auto-time set on watch, the watch will connect and run automatically up to 4 times per day.
2026-01-16 15:44:51,126 gshock_api.logger INFO: ==============================================================================================
2026-01-16 15:44:51,126 gshock_api.logger INFO: 
2026-01-16 15:44:51,126 gshock_api.logger INFO: Waiting for connection...
2026-01-16 15:44:58,555 gshock_api.logger INFO: ✅ Found: CASIO GW-BX5600 (D3:02:2C:4E:E0:26)
2026-01-16 15:45:00,460 gshock_api.logger INFO: Connected...
2026-01-16 15:45:00,898 gshock_api.logger INFO: name: CASIO GW-BX5600
2026-01-16 15:45:00,899 gshock_api.logger INFO: Starting GW-BX5600 initialization sequence...
2026-01-16 15:45:00,899 gshock_api.logger INFO: Sending raw command: handle=0017, value=051D001D00240024012402
2026-01-16 15:45:00,899 gshock_api.logger INFO: write failed: handle 23 not in characteristics map
2026-01-16 15:45:00,899 gshock_api.logger INFO: Sending raw command: handle=0019, value=020F001D000106065E761901FFFFFFFFFFFF0F001D020302000000FFFFFFFFFFFFFFFF
2026-01-16 15:45:00,899 gshock_api.logger INFO: write failed: handle 25 not in characteristics map
2026-01-16 15:45:00,899 gshock_api.logger INFO: Sending raw command: handle=0017, value=031E001E001E00
2026-01-16 15:45:00,899 gshock_api.logger INFO: write failed: handle 23 not in characteristics map
2026-01-16 15:45:00,899 gshock_api.logger INFO: Sending raw command: handle=0019, value=0607001E005E7620040007001E01190124040007001E02000000000014002400014036B9186DB50F41405C90B4916CA46E0314002401014041D841355475A3406176227D028A1E0214002402014049C0000000000000000000000000000000
2026-01-16 15:45:00,900 gshock_api.logger INFO: write failed: handle 25 not in characteristics map
2026-01-16 15:45:00,900 gshock_api.logger INFO: Sending raw command: handle=0017, value=061F001F061F011F071F021F08
2026-01-16 15:45:00,900 gshock_api.logger INFO: write failed: handle 23 not in characteristics map
2026-01-16 15:45:00,900 gshock_api.logger INFO: Sending raw command: handle=0019, value=0614001F005348414E474841490000000000000000000014001F0653484100000000000000000000000000000014001F01544F4B594F0000000000000000000000000014001F0754594F00000000000000000000000000000014001F0228555443290000000000000000000000000014001F08555443000000000000000000000000000000
2026-01-16 15:45:00,900 gshock_api.logger INFO: write failed: handle 25 not in characteristics map
2026-01-16 15:45:00,900 gshock_api.logger INFO: Sending raw command: handle=000E, value=09EA07010A001E23060501
2026-01-16 15:45:01,093 gshock_api.logger INFO: Sequence complete.
2026-01-16 15:45:01,093 gshock_api.logger INFO: Time set at 2026-01-16 15:45:01.093900 on CASIO GW-BX5600
2026-01-16 15:45:01,391 gshock_api.logger INFO: Waiting for connection...
2026-01-16 15:45:26,176 gshock_api.logger INFO: ✅ Found: CASIO GW-BX5600 (D3:02:2C:4E:E0:26)
2026-01-16 15:45:27,402 gshock_api.logger INFO: Connected...
2026-01-16 15:45:27,744 gshock_api.logger INFO: name: CASIO GW-BX5600
2026-01-16 15:45:27,744 gshock_api.logger INFO: Starting GW-BX5600 initialization sequence...
2026-01-16 15:45:27,744 gshock_api.logger INFO: Sending raw command: handle=0017, value=051D001D00240024012402
2026-01-16 15:45:27,744 gshock_api.logger INFO: write failed: handle 23 not in characteristics map
2026-01-16 15:45:27,744 gshock_api.logger INFO: Sending raw command: handle=0019, value=020F001D000106065E761901FFFFFFFFFFFF0F001D020302000000FFFFFFFFFFFFFFFF
2026-01-16 15:45:27,744 gshock_api.logger INFO: write failed: handle 25 not in characteristics map
2026-01-16 15:45:27,745 gshock_api.logger INFO: Sending raw command: handle=0017, value=031E001E001E00
2026-01-16 15:45:27,745 gshock_api.logger INFO: write failed: handle 23 not in characteristics map
2026-01-16 15:45:27,745 gshock_api.logger INFO: Sending raw command: handle=0019, value=0607001E005E7620040007001E01190124040007001E02000000000014002400014036B9186DB50F41405C90B4916CA46E0314002401014041D841355475A3406176227D028A1E0214002402014049C0000000000000000000000000000000
2026-01-16 15:45:27,745 gshock_api.logger INFO: write failed: handle 25 not in characteristics map
2026-01-16 15:45:27,745 gshock_api.logger INFO: Sending raw command: handle=0017, value=061F001F061F011F071F021F08
2026-01-16 15:45:27,745 gshock_api.logger INFO: write failed: handle 23 not in characteristics map
2026-01-16 15:45:27,745 gshock_api.logger INFO: Sending raw command: handle=0019, value=0614001F005348414E474841490000000000000000000014001F0653484100000000000000000000000000000014001F01544F4B594F0000000000000000000000000014001F0754594F00000000000000000000000000000014001F0228555443290000000000000000000000000014001F08555443000000000000000000000000000000
2026-01-16 15:45:27,745 gshock_api.logger INFO: write failed: handle 25 not in characteristics map
2026-01-16 15:45:27,745 gshock_api.logger INFO: Sending raw command: handle=000E, value=09EA07010A001E23060501
2026-01-16 15:45:27,938 gshock_api.logger INFO: Sequence complete.
2026-01-16 15:45:27,938 gshock_api.logger INFO: Time set at 2026-01-16 15:45:27.938864 on CASIO GW-BX5600
2026-01-16 15:45:28,232 gshock_api.logger INFO: Waiting for connection...

[izivkov]

OK, I'll get back to you. Maybe we can try a new APK for GshockSmartSync with added support for your watch. The logs from the Python script do not tell me that much new. Thanks for your help Ivo

…

On Fri, Jan 16, 2026 at 10:48 AM Smanthl ***@***.***> wrote: *Smanthl* left a comment (izivkov/gshock_api#2) <#2 (comment)> I have updated and tested it, and the time has not changed. When I briefly press the button in the lower right corner, it enters the connection state and then immediately returns to the time interface. ***@***.***:~/gshock_api-GW-BX5600/src/examples $ PYTHONPATH=../ uv run gshock_server_bx.py 2026-01-16 15:44:51,125 gshock_api.logger INFO: ============================================================================================== 2026-01-16 15:44:51,125 gshock_api.logger INFO: Short-press lower-right button on your watch to set time... 2026-01-16 15:44:51,126 gshock_api.logger INFO: 2026-01-16 15:44:51,126 gshock_api.logger INFO: If Auto-time set on watch, the watch will connect and run automatically up to 4 times per day. 2026-01-16 15:44:51,126 gshock_api.logger INFO: ============================================================================================== 2026-01-16 15:44:51,126 gshock_api.logger INFO: 2026-01-16 15:44:51,126 gshock_api.logger INFO: Waiting for connection... 2026-01-16 15:44:58,555 gshock_api.logger INFO: ✅ Found: CASIO GW-BX5600 (D3:02:2C:4E:E0:26) 2026-01-16 15:45:00,460 gshock_api.logger INFO: Connected... 2026-01-16 15:45:00,898 gshock_api.logger INFO: name: CASIO GW-BX5600 2026-01-16 15:45:00,899 gshock_api.logger INFO: Starting GW-BX5600 initialization sequence... 2026-01-16 15:45:00,899 gshock_api.logger INFO: Sending raw command: handle=0017, value=051D001D00240024012402 2026-01-16 15:45:00,899 gshock_api.logger INFO: write failed: handle 23 not in characteristics map 2026-01-16 15:45:00,899 gshock_api.logger INFO: Sending raw command: handle=0019, value=020F001D000106065E761901FFFFFFFFFFFF0F001D020302000000FFFFFFFFFFFFFFFF 2026-01-16 15:45:00,899 gshock_api.logger INFO: write failed: handle 25 not in characteristics map 2026-01-16 15:45:00,899 gshock_api.logger INFO: Sending raw command: handle=0017, value=031E001E001E00 2026-01-16 15:45:00,899 gshock_api.logger INFO: write failed: handle 23 not in characteristics map 2026-01-16 15:45:00,899 gshock_api.logger INFO: Sending raw command: handle=0019, value=0607001E005E7620040007001E01190124040007001E02000000000014002400014036B9186DB50F41405C90B4916CA46E0314002401014041D841355475A3406176227D028A1E0214002402014049C0000000000000000000000000000000 2026-01-16 15:45:00,900 gshock_api.logger INFO: write failed: handle 25 not in characteristics map 2026-01-16 15:45:00,900 gshock_api.logger INFO: Sending raw command: handle=0017, value=061F001F061F011F071F021F08 2026-01-16 15:45:00,900 gshock_api.logger INFO: write failed: handle 23 not in characteristics map 2026-01-16 15:45:00,900 gshock_api.logger INFO: Sending raw command: handle=0019, value=0614001F005348414E474841490000000000000000000014001F0653484100000000000000000000000000000014001F01544F4B594F0000000000000000000000000014001F0754594F00000000000000000000000000000014001F0228555443290000000000000000000000000014001F08555443000000000000000000000000000000 2026-01-16 15:45:00,900 gshock_api.logger INFO: write failed: handle 25 not in characteristics map 2026-01-16 15:45:00,900 gshock_api.logger INFO: Sending raw command: handle=000E, value=09EA07010A001E23060501 2026-01-16 15:45:01,093 gshock_api.logger INFO: Sequence complete. 2026-01-16 15:45:01,093 gshock_api.logger INFO: Time set at 2026-01-16 15:45:01.093900 on CASIO GW-BX5600 2026-01-16 15:45:01,391 gshock_api.logger INFO: Waiting for connection... 2026-01-16 15:45:26,176 gshock_api.logger INFO: ✅ Found: CASIO GW-BX5600 (D3:02:2C:4E:E0:26) 2026-01-16 15:45:27,402 gshock_api.logger INFO: Connected... 2026-01-16 15:45:27,744 gshock_api.logger INFO: name: CASIO GW-BX5600 2026-01-16 15:45:27,744 gshock_api.logger INFO: Starting GW-BX5600 initialization sequence... 2026-01-16 15:45:27,744 gshock_api.logger INFO: Sending raw command: handle=0017, value=051D001D00240024012402 2026-01-16 15:45:27,744 gshock_api.logger INFO: write failed: handle 23 not in characteristics map 2026-01-16 15:45:27,744 gshock_api.logger INFO: Sending raw command: handle=0019, value=020F001D000106065E761901FFFFFFFFFFFF0F001D020302000000FFFFFFFFFFFFFFFF 2026-01-16 15:45:27,744 gshock_api.logger INFO: write failed: handle 25 not in characteristics map 2026-01-16 15:45:27,745 gshock_api.logger INFO: Sending raw command: handle=0017, value=031E001E001E00 2026-01-16 15:45:27,745 gshock_api.logger INFO: write failed: handle 23 not in characteristics map 2026-01-16 15:45:27,745 gshock_api.logger INFO: Sending raw command: handle=0019, value=0607001E005E7620040007001E01190124040007001E02000000000014002400014036B9186DB50F41405C90B4916CA46E0314002401014041D841355475A3406176227D028A1E0214002402014049C0000000000000000000000000000000 2026-01-16 15:45:27,745 gshock_api.logger INFO: write failed: handle 25 not in characteristics map 2026-01-16 15:45:27,745 gshock_api.logger INFO: Sending raw command: handle=0017, value=061F001F061F011F071F021F08 2026-01-16 15:45:27,745 gshock_api.logger INFO: write failed: handle 23 not in characteristics map 2026-01-16 15:45:27,745 gshock_api.logger INFO: Sending raw command: handle=0019, value=0614001F005348414E474841490000000000000000000014001F0653484100000000000000000000000000000014001F01544F4B594F0000000000000000000000000014001F0754594F00000000000000000000000000000014001F0228555443290000000000000000000000000014001F08555443000000000000000000000000000000 2026-01-16 15:45:27,745 gshock_api.logger INFO: write failed: handle 25 not in characteristics map 2026-01-16 15:45:27,745 gshock_api.logger INFO: Sending raw command: handle=000E, value=09EA07010A001E23060501 2026-01-16 15:45:27,938 gshock_api.logger INFO: Sequence complete. 2026-01-16 15:45:27,938 gshock_api.logger INFO: Time set at 2026-01-16 15:45:27.938864 on CASIO GW-BX5600 2026-01-16 15:45:28,232 gshock_api.logger INFO: Waiting for connection... — Reply to this email directly, view it on GitHub <#2 (comment)>, or unsubscribe 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You are receiving this because you authored the thread.Message ID: ***@***.***>

[Smanthl]

Thank you for your help. However, I still prefer using esp32 for automatic updates because it prevents my mobile app from constantly running in the background. But if could get the important information from the new GshockSmartSync, it might be possible to update Python and use esp32. Looking forward to your good news. Goodnight.

[izivkov]

Yes, once we figure out how to set time, I'll update all projects

…

On Fri, Jan 16, 2026, 12:44 PM Smanthl ***@***.***> wrote: *Smanthl* left a comment (izivkov/gshock_api#2) <#2 (comment)> Thank you for your help. However, I still prefer using esp32 for automatic updates because it prevents my mobile app from constantly running in the background. But if I could get the important information from the new GshockSmartSync, it might be possible to update Python and use esp32. Looking forward to your good news. Goodnight. — Reply to this email directly, view it on GitHub <#2 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AA7M37WSGPLXAKJ76T6YBW34HEPQHAVCNFSM6AAAAACRSR5AUSVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTONRRGEZDMNJVHA> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[izivkov]

If you can, try this APK: https://github.com/izivkov/CasioGShockSmartSync/releases/tag/Debug.

Even if you are not able to set time, you can try another feature I have added. In the settings screen, you can see a setting called Font, which should enable you to switch fonts on your watch. Please give it a try and let me know if it works

Thanks,
Ivo

[Smanthl]

Yes, it works, the font changes.