Error changing notification state: Unknown error. #9
Description
[peripheral setNotifyValue:flag forCharacteristic:characteristic];
this triggers - (void)peripheral:(CBPeripheral *)peripheral didUpdateNotificationStateForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error
however it is always returning the error Error Domain=CBErrorDomain Code=0 "The operation couldn’t be completed. (CBErrorDomain error 0.)"