https://devzone.nordicsemi.com/f/nordic-q-a/98957/ble-gatt-servicesHi all, I am working on an application capable of advertising, and an external device can be connected to it to write values to the application. For the application I try to connect through the mobile application of nRF connect, but I&#39;m having problemsen-USTelligent Community 13Mon, 24 Apr 2023 08:08:27 GMThttps://devzone.nordicsemi.com/thread/421958?ContentTypeID=1Mon, 24 Apr 2023 08:08:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8793f5f6-8768-4c97-9b54-4ecac091d62aEinarh<p>Hello</p> <p>Error 133: GATT error does not tell us much without more context, it could for example be caused by a weak BLE connection. I would recommend checking for more specific logs and debug messages.</p> <p>And for your characteristic, have you tried setting the READ property? You might have to do this for it to work.</p> <p>Best regards,</p> <p>Einar</p><div style="clear:both;"></div>