Alarm clock doesnt ring morning s21 fe

[Oliverpf]

Hello

I have a samsung galaxy s21 fe with the latest software on it (29.9.22). I set the alarm clock for the next morning and plugged my phone to the charger. The next morning the phone was turned off, but showed me it was charged 100%. The alarm clock also didnt ring (maybe because the phone was turned off). I need a solution for this, because it happened already  2 times. Is it possible to let the alarm always ring, regardless of whether the phone is off or on. Or can i supress that my phone is turned off by its own, when it has battery.

[dj9494]

In Samsung, alarm will only ring when your mobile is turned on.

[AndrewL]

@Oliverpf: Are you using an official Samsung USB cable and plug adapter to charge your Galaxy S21 FE? If so, does the phone only intermittently power off when you're connected to your charger? 

[Oliverpf]

Im using the official cable and plug adapter. Im not sure, it only happened two times, over night, while plugged in. But maybe it has something to do with automatic updates? Idc