https://devzone.nordicsemi.com/f/nordic-q-a/10350/scan-switches-off-automaticallyWe are operating on nRF51822 QFAC with S130 SD. We have a functionality where the device switches between scanning and advertising. Strangely we have observed that after few hours (may be 20 hours or so) the scan functionality gets automatically switcheden-USTelligent Community 13Thu, 19 Nov 2015 19:36:30 GMThttps://devzone.nordicsemi.com/thread/38413?ContentTypeID=1Thu, 19 Nov 2015 19:36:30 GMT137ad170-7792-4731-bb38-c0d22fbe4515:07ead008-91cf-47c9-98ec-6afbdcc52659run_ar<p>Yes, if you are using a coincell battery, there is a risk the voltage will drop to much when this is close to being empty. Rx for 60ms could absolutely cause this. Have you tested this with an external power supply to see if it still happens when power isn&#39;t an issue?</p><div style="clear:both;"></div>