Suddenly restarts in v7.1.1

[borgelp]

After latest update my Xperia X suddenly restarts, but I dont need to reenter sim pincode. I havent been able to see why. It hapends during calls, with bluetooth enable and even with just surfing. The screen flicker and gets blurry before restart. 

I have Android 7.1.1. with firmware 34.3.A.0.228
I have tried to restore factory defaults, changed sim card, taken out SD card, but it doesnt seem to affect it. My only guess is that it have something to do with bluetooth, but I am not sure. 

Any suggestions?

[Jonas]

Hi @cyha78, sorry to hear about this and I apologize for the late reply.

Do I understand correctly that this does only occur when you either transfer data to your SD card or when you update applications, even those that are not transferred to your SD card, for example, pre-installed applications such as Album or any of the Google applications?

If this is correct, try and perform a software repair using Xperia Companion. Do note that this will delete all data stored on the internal storage of the phone, so it is advised that you create a backup using Xperia Companion before you start with the software repair.

However, if this only occurs with applications that are stored on your SD card, try and move on of them back to the internal storage and only update that specific application.

Let me know how it goes!