Hi, I’m having a similar problem. It adds to the random reboots, at the moment I am very disappointed with my experience with Fairphone.
Recognize the Sim, but I have no signal, I can not make or receive calls. I have put my Sim on another phone, because I can not use my Fairphone.
If someone can help us, thanks in advance.
But honestly, there is no useful help in those three posts - they all end up with sending the phone back… (And of course I already tried to make a complete new installation of the FPopenOS etc.)
Be the end result as it may … “useful” can only be determined by trying … I take at least the following hints from these three topics … other readers might find them useful …
Turning the phone completely off and on again might help.
How old is the SIM? Does it still work in another phone?
Are pins of the SIM slot bent or broken?
Did this behaviour start after installing some App? (Hard to say afterwards, I know, but a hint is a hint.)
Using adapters for the several SIM card form factors does not always work reliable.
Wipe cache.
Factory reset.
Hard reset.
And … sending the phone back is indeed a solution if it somehow results in a working phone in the end … contactsupport .
This should take care of the software side.
If everything looks ok on the hardware side, that leaves contactsupport in my view.
In my case, I tried to turn the phone off and on, try another SIM, try my SIM on another phone and the two SIms work on 3 different phones and neither of them works on Fairphone. I requested a new SIM for the restart problems, so the SIM card is not the problem, it is certainly the mobile, but I do not know more, I tried in safe mode and factory reset and it still does not work.
I hope you’re lucky, unaegeli.
Thanks for your tips AnotherElk
Argh, you have a point there, I’m sorry.
My thoughts got totally jumbled somewhere between answering your case, pointing out useful hints in the old topics for other readers, too, and in the end I forgot to track back and acknowledge your new installation of the OS and differentiate the software and hardware side of things considering that, and so the post was a total mess neither doing one thing or the other.
I edited it. Please have mercy .
No problems, thanks. Tried another hard reset with a complete new system - no chance to get the SIM card running --> back to the repair service - fortunately I still have warranty until July (but as it will last several weeks if not months, it’s nevertheless a pity).