https://devzone.nordicsemi.com/f/nordic-q-a/12642/fail-to-connect-nrf-uart-v2-0Hello, i&#39;m trying a bluetooth connection between nrf UART v2.0 installed on my phone(android 4.4) and nRF 8001 (i&#39;m usign nRF2740 card). My microcontroller is a STM32. Each time I try to connect, there is a connection followed by a diconnectionen-USTelligent Community 13Mon, 21 Mar 2016 09:50:15 GMThttps://devzone.nordicsemi.com/thread/48026?ContentTypeID=1Mon, 21 Mar 2016 09:50:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7fbc573d-3a51-49b0-85cd-e235a7f49589Hung Bui<p>Hi Chloe,</p> <p>Could you try to test with the nRF Master Control Panel app ? If you test with other service and profile would you have the same problem ? I am suspecting the issue with Android phone that couldn&#39;t connect to the device, you can try to reset the phone. Which phone are you testing ?</p><div style="clear:both;"></div>