SIM cards it says both sims are empty.When I try to make a call, instead of giving me the choice of sim, it only offers emergency call.I have tried rebooting, re-seating the sims, going into recovery mode and clearing the cache partition. " /> SIM cards it says both sims are empty.When I try to make a call, instead of giving me the choice of sim, it only offers emergency call.I have tried rebooting, re-seating the sims, going into recovery mode and clearing the cache partition. " />

"Sim Empty" and cannot make calls after upgrade

Question

I have a WileyFox Swift which I recently updated to Nougat. Wileyfox runs Cyanogen natively. I have not rooted it or hacked it in any way. I installed the update by clicking on a reminder that kept popping up telling me to update. So everything has been done in the official manufacturer-defined way.

It has two sims. When I reboot it asks for the sim lock PIN for one of the sims (the other does not have one) so I know it is detecting the hardware. Also I am able to receive SMS on one of the sims. But I cannot make calls, receive calls, or send SMS. When I go to "Settings -> SIM cards" it says both sims are empty.When I try to make a call, instead of giving me the choice of sim, it only offers emergency call.

I have tried rebooting, re-seating the sims, going into recovery mode and clearing the cache partition.

— naomi | Sources

Answer

I am in exactly the same situation, Wileyfox upgrade to Nougat, and have not found a good fix.

However what has worked (to a point) is as below:

Turn off remove sims and battery for at least 5mins

Insert 1st SIM, battery and reboot.

At this point 1st Sim should be recognised.

Turn off remove battery for 1-2mins.

Insert 2nd SIM, battery and reboot.

Both Sims should now be recognised.

Set and check preferences for Calls, Data, SMS etc.

Leave phone on!!!! <- A new problem

As soon at the phone is turned off and on again its back to square one :-(.

I guess it could be a specific problem with Cyanogen >>> Nougat, and the firmware handling 2 sims on boot up.

For reference my Sims are o2 and EE.

— Pantal00ns | Sources

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