Sony xperia z1 compact restarts itself

[BGD]

This is my 2nd sony xperia 1 compact. The first one turned itself off and didnt go an back again (also no light when i load it). I send it back to the shop and when it arrived it worked again.

I got my money back for this one en bought another z1 compact. Yesterday it twice turned itself off, I think maybe it started after i did the software update. But my first one i cant remember if i updated.

Does anyone know why this happens? and what to do to make it not happen?

[Ashroft98]

Repair your software with PC Companion.

http://support.sonymobile.com/global-en/tools/pc-companion/

[Thommo]

Restarts are normally caused by faulty SIM cards - Check your card for dirt and correct fitting or check with your network and ask about a new card

[Uliwooly]

I agree with Thommo 

[BGD]

Thank you all! I ordered a new sim card. Hope it works!

[Uliwooly]

Is it a MICRO SIM card ?

[BGD]

Yes it is. But it's the only that fits in there isnt it?

[Uliwooly]

No, you could 

1. get a regular SIM card and cut it, but don't do it

2. get a NANO SIM card, that will fit but its too small 

[BGD]

Ah okay! I just ordered the other one. If that doesnt work ill try this! Thanks.

[Uliwooly]

Anytime