https://devzone.nordicsemi.com/f/nordic-q-a/2114/restart-on-disconnect-after-add-serviceHi, I&#39;m a beginner. I want to add to example of the proximity, next service identical to battery service. I need to send 1 byte of data. Everything works well until when disconnect. Device resets and returns error 0x0C in the macro APP_ERROR_CHECKen-USTelligent Community 13Tue, 08 Apr 2014 11:07:00 GMThttps://devzone.nordicsemi.com/thread/9009?ContentTypeID=1Tue, 08 Apr 2014 11:07:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8a7b6896-7068-406e-abc4-0b44d674adf7Stefan Birnir Sverrisson<p>Hi Tom</p> <p>Perhaps you can share more details about your scenario. Are you adding a custom service? If so, can you share the code that you use to add that service?</p> <p>A good starting point to get familiar with BLE message exchange, service creation, etc is to read white paper 36 available <a href="https://www.nordicsemi.com/eng/nordic/Products/nRF51822/nAN-36/24020">here</a>. The example code accompanied with the white paper is available <a href="https://github.com/NordicSemiconductor/nrf51-ble-app-lbs">here</a> for nRF51 SDK v5.2.0.</p><div style="clear:both;"></div>