I have bought a Xperia XZ2 to install /e/OS after several happy years with /e/ preinstalled on a Samsung S7.
The XZ2 came with Android 9 so I had to upgrade it to Android 10 before beginning migration. I did it with the Sony flashtool Emma, which proposed me the build version 52.1.A.0.618.
Now the phone does not recognize the SIM card, I am not allowed to add APN… I found other people having this issue on other Sony mobiles and the solution seems to be to update the firmware to newer versions, but the Sony flashtool does not propose me newer versions than the one installed.
I read on /e/ install guides or LineageOS install guides that one shall make sure that the phone can make calls with the stock ROM before migration.
But I know before upgrading to A10, the SIM card was recognised and I could give and receive calls.
So the question is: can I try to migrate to /e/, which could make this software problem disappear, or is it sure that the problem will remain?
Thanks in advance for your help!