https://devzone.nordicsemi.com/f/nordic-q-a/25066/system-halted-when-disconnect-the-bluetoothThe device use SDK9.0,during the using of device,when disconnect the bluetooth of phone system sometimes,the system halted. So I make an experiment about the probability of the situation happened,generated a android app: connect the device successfullyen-USTelligent Community 13Mon, 30 Oct 2017 01:38:21 GMThttps://devzone.nordicsemi.com/thread/98699?ContentTypeID=1Mon, 30 Oct 2017 01:38:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:56e3d90c-c057-41ae-a6a5-fe210e340b12Milk<p>Hi, I use the example of ble_app_hrs,press the app button(&quot;disconnect&quot; )to realize the device disconnecting.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/98700?ContentTypeID=1Mon, 11 Sep 2017 11:05:22 GMT137ad170-7792-4731-bb38-c0d22fbe4515:68113e25-ff3e-49a2-9698-caf20b098477Petter Myhre<p>Which example are you using? How are you disconnecting? In some situations Android keeps the connection at the system level, even though you have closed the app.</p><div style="clear:both;"></div>