Problem - eSIM stopped working

[GoranC]

Hello,

I have a FP4 with LineageOS since 14 months, and since this morning I can not make any phone calls or send SMS. It worked yesterday.

I get a message on the lock-screen “No SIM card”, which I did not get before.

The network strength indicator has a ! to indicate no connection to the base station.

My wife’s phone has strength 4/5, and we have the same subscription/provider (Hallon/Tre in Sweden).

I have tried the following:

• Reset Network Settings
• Reinstall eSIM
• Reboot (5x)
• Open up and remove old (no longer used) physical sim-card

Still same problem “Calls and SMS Temporarily unvailable” and no mobile data.

Last week this happened once, and it went away after a reboot.

What do you suggest?
Is there any way that I can see if the telephone/modem module is broken?

Kind regards,
Göran

[GoranC]

Hello Forum,
I have now tried with different physical sim cards. No sim card works.
I get no calls, no SMS, no mobile data.
WIFI works fine.

I guess hardware failure.

Which replacement part do I need to switch out, to get my phone working again?

Kind regards,
Goran

[yvmuell]

Dont you have warranty?

[mde]

You should really try to settle this under warranty. That should be absolutely no problem after only 14 months, if I understand you correctly.
Your problem is probably with the mainboard/“core module” which is the most expensive piece in the phone and also not regularly sold as a spare part.