diff --git a/device/bootloader/Source/localization.c b/device/bootloader/Source/localization.c
index 6f68eda..906193c 100644
--- a/device/bootloader/Source/localization.c
+++ b/device/bootloader/Source/localization.c
@@ -8,6 +8,7 @@
 
 typedef struct {
     db_lh2_t                lh2;
+    uint32_t                initialized;
     double                  coordinates[2];
 } localization_data_t;
 
@@ -16,7 +17,11 @@ static __attribute__((aligned(4))) localization_data_t _localization_data = { 0
 
 void localization_init(void) {
     puts("Initialize localization");
-    db_lh2_init(&_localization_data.lh2, &db_lh2_d, &db_lh2_e);
+    _localization_data.initialized = db_lh2_init(&_localization_data.lh2, &db_lh2_d, &db_lh2_e);
+    if (!_localization_data.initialized) {
+        return;
+    }
+
     db_lh2_start();
 
 #if LH2_CALIBRATION_IS_VALID
@@ -34,12 +39,16 @@ void localization_init(void) {
 }
 
 bool localization_process_data(void) {
+    if (!LH2_CALIBRATION_IS_VALID || !_localization_data.initialized) {
+        return false;
+    }
+
     db_lh2_process_location(&_localization_data.lh2);
     return (_localization_data.lh2.data_ready[0][0] == DB_LH2_PROCESSED_DATA_AVAILABLE && _localization_data.lh2.data_ready[1][0] == DB_LH2_PROCESSED_DATA_AVAILABLE);
 }
 
 bool localization_get_position(position_2d_t *position) {
-    if ((LH2_CALIBRATION_IS_VALID) && (_localization_data.lh2.data_ready[0][0] == DB_LH2_PROCESSED_DATA_AVAILABLE && _localization_data.lh2.data_ready[1][0] == DB_LH2_PROCESSED_DATA_AVAILABLE)) {
+    if ((LH2_CALIBRATION_IS_VALID) && (_localization_data.initialized) && (_localization_data.lh2.data_ready[0][0] == DB_LH2_PROCESSED_DATA_AVAILABLE && _localization_data.lh2.data_ready[1][0] == DB_LH2_PROCESSED_DATA_AVAILABLE)) {
         db_lh2_stop();
         db_lh2_calculate_position(_localization_data.lh2.locations[0][0].lfsr_counts, _localization_data.lh2.locations[1][0].lfsr_counts, _localization_data.lh2.locations[0][0].selected_polynomial, _localization_data.coordinates);
         _localization_data.lh2.data_ready[0][0] = DB_LH2_NO_NEW_DATA;