For several days now, the LG Q6 has made me angry when it suddenly stops detecting the SIM card. (once or twice a day)

I don't want to discuss the cause and possible solution. (Restart always helps)

The worst part is that the outage cannot be predicted.

Therefore, I want to ask if is there any app that would alert me to this, please? Either in the absence of a SIM card or on the loss of connection (of course, when the airplane mode isn't activated).

  • Not sure how well they work (especially as most of those apps having seen no update for quite a while), but maybe one of my collection for Bad Signal Alert can help? The one I used years ago is no longer available. Also see What is Cell standby and how can I keep it from eating my battery? on our sister site which offers different solutions you might be interested in.
    – Izzy
    Commented Apr 25, 2021 at 10:12
  • @Izzy Thank you, I installed GSM Signal Monitor & SIM Card Info. Unfortunately, it cannot be tested, I have to wait until the problem occurs. Commented Apr 25, 2021 at 15:09
  • Sure. And as I know Murphy, now that you have a potential solution it might take a while until the problem occurs again (when you least expect it)… Just remember to keep us updated, please! And the app fits, be welcome to answer your own question :)
    – Izzy
    Commented Apr 25, 2021 at 23:06

1 Answer 1


So the application GSM Signal Monitor & SIM Card Info works absolutely reliably. It didn't solve my problem, but it's a discussion about something else.

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