Phone switches itself off.

[principessan]

After the latest Sony system update my phone (XZ1 Compact) has started to switch itself off. 

It happens randomly throughout the day, but seems also to happen when someone calls (although not all the time). 

What can I do to stop this happening? 

[MarlonUk1 · Accepted solution]

try to observed your device while it is in safe mode 

also try to software repair using Xperia Companion 

[principessan]

I switched the phone to 'safe mode' for a couple of days and it didn't switch itself of during that time.

I decided to do the Software Repair, and so far the phone is behaving itself nicely.

Thank you for your help.

[MarlonUk1]

Just be careful with the apps the you reinstall.it might be one of the apps that may be causing the restarts

[orlowsk_a]

When i use my phone, it off for few minute, sometimes hours, i can't use my phone and on it back #off