Interestingly the fingerprint scanner, volume key and camera key have also stopped working and have read on a post of someone with the same mobile radio problem who, after opening the phone, found a problem a cable involving the mobile radio and fingerprint scanner that had come loose and reconnecting it solved his problem.

Any ideas on if this might be the problem or what it could be? I've tried factory reset, Xperia companion repair etc.

⟐ Answered August 22, 2024 at 11:38 MST

Toggling flight mode, re-boots, Safe mode, changing SIM cards, reset network settings, toggling wifi calling, does nothing.

What does work though, is disconnecting and reconnecting the battery. But only after the first start up after the disconnection. As soon as I reboot the phone a second time, the problem comes back...

A diagnostic test reveals UICC failure.

Google says UICC has something to do with the SIM. So my thinking is that some component on a part of the main board that handles network stuff got (water) damaged through a broken screen. And during the startup process it gets flagged as flight mode. Or something like that...

But that doesn't make sense, since everything works fine after the first startup after a disconnection. And that makes me think it can be fixed.

Any takers?

It's stock firmware. So I don't really think that a reinstall would solve anything. But I might be wrong?

Also. I can't get the unit into recovery mode, to clean the system cache. Don't know if that would make a difference though?

⟐ Answered March 17, 2024 at 19:14 MST

⟐ Answered February 25, 2026 at 3:35 MST