My z4 keeps restarting

[janlaa]

I have owned my z4 tablet for about a week now. Restarting problem started occuring almost instantly when i first booted up my tablet. Tried to repair my tablet using pc companion and got rid of the problem for few days but soon after it started again. what should i do ?

[Uliwooly]

@janlaa

That's probably an app acting up, you could repair the tablet again and check if it start again and if it does, keep an eye on the apps that you install, also do you have the LTE version? if you do, are you using a NANO SIM card or did you trimmed fit a regular SIM card?

[Thommo]

Do you have a SIM or SD card in your device? If so then remove and test

[janlaa]

I have LTE version but i dont have sim card inserted at the moment. I have memory card though.

[janlaa]

well i removed sd card and my tablet just restarted again... i dont know how any app could do this, dont have many installed

[Uliwooly]

@janlaa

Repair it with PCC and report back

PC Companion (PCC)

Bridge (for Mac)

Alternatives on How to backup Xperias

http://talk.sonymobile.com/thread/36355

[janlaa]

just used pc companion to repair my tablet and soon after another restart with no new apps installed.

[Uliwooly]

@janlaa

Contact your local Xperia Care

http://support.sonymobile.com/global-en/contactUs/