Rebooting Frequently

[Abhinav-]

I have purchased Xperia C4 Dual yesterday. Its not even 24 hours and device has started showing the abnormal behaviour. It keeps on reebooting after some time, when i attempt to make calls, install new app or use some app. Help me fixing it please.

[Abhinav-]

Problem still persists. I ahve changed the Nano sim but it keeps on rebooting every now and then.

Please Help. 

[Abhinav-]

My phone was rebooting very oftenly
So I have got my phone repaired from service center, they changed the mother board

But the problem started again with my new repaired phone.

My observation: it works well on normal data but when I connect to WiFi it starts rebooting often

Please suggest what to do next.

[Uliwooly]

@Abhinav-

Contact your local Xperia Care again. 

[xavinux]

Hi @Abhinav-

I suggest you to first run a backup of the device information like this:

http://talk.sonymobile.com/t5/FAQ/Backup-amp-Transfer/m-p/407253#U407253

Try performing a system repair using PC Companion:

http://support.sonymobile.com/gb/tools/pc-companion/

This will factory reset your phone and erase all data. You might need tocharge your device for about 1-2 hours before so the device has at least 80% battery. Make sure the device is not connected to computer or laptop and turned off (sometimes you have to press power button and volume up until the device vibrates 3 times or on some devices you have to press the small button near the SIM tray or on the back of the device). Start PC Companion and select Support zone then Update my phone/tablet then in Blue Repair my phone/tablet and follow the on screen instructions - When prompted connect your phone still switched off holding volume down or back button - This should start the repair or reformat process. If you are using Windows 8/8.1 or a 64bit operating system then adjust the settings for PC Companion and run in compatibility mode and chose Windows 7 or XP.

I hope can be useful.

I'm at disposal for any question.

Best Regards,