Mysterious Setting Reset and Hotspot Problem

A

AC Question

Hey everyone!

Hopefully you can help me with a little problem:

My phone fell. Now, no device can connect to its hotspot - two laptops say "Connection not possible", a phone falsely claimed "Invalid password entered" (and when i removed the password from the hotspot the error message switched to "Connection not possible").

Also, when I restart the phone some settings are mysteriously reset. First I see a pop-up message reading "Some applications require data connection. We recommend hiring a data plan." - even though my provider is being recognized and I even have working mobile data. Then, after every restart the 24-h-clock format, the percentage display of the battery, the auto-rotate and a lock-screen setting are reset to default.

After I took out the SIM, I tested if the reset happens without SIM. It did not. After that it did not occur again with SIM, neither. However, the "You should get a data plan" pop-up still happens and the hotspot still doesn't work.

How can I fix this problem, or more specifically, make the hotspot work again?

I am not even sure if the issue has to do with software or hardware.

Any help is very much appreciated, thank you :)

Kind regards
 

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