@alzhao That’s what it seemed to me. On github I saw that gl_bletool supports only Silconlabs EFR32 BLE. While the MT1300 beryl has TLSR8251.
@alzhao Could you please guide me on how to use Bluetooth on MT1300? I saw that the thermometer from xiaomi uses the same chipset but it did not help me. I tried to use the BlueZ and serial but it didn’t work for me.