Xperia Z3 keeps restarting when receiving calls

[dangtq]

Hi all,

I had had many bugs regarding this phone, but this is one of them. Even though, I have researched and they blamed that it was the SIM card. Replacing a new SIM card might be a solution, but I think this may also be a cause of a defective device since the same SIM card still worked perfectly in another phone. This is my second Sony phone and I will not have a third with any reason.

Other major issue that I also had was the phone was automatically reset and erased all data (including external SD). I also researched and they blamed this might be due to someone logged into google account and triggered it. All right, this can be just an explanation, but since this is a very serious issue since the device could hold all types of data that are very critical to users. Could there be a fix that preventing some anonymous person doing this?

Thanks!

[xavinux]

Hi @dangtq

Please, try boot your device into safe mode to check if this issue persists:

http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008

If everything works ok in this mode, a third party app is generating this issue, but if the problem was not solved, 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.

In PC Companion you press start on Support Zone -> Start on Update the phone/tablet software -> Repair phone/tablet (the blue
clickable link in the message) -> Follow these steps without having your device connected to the PC.

Follow the instruction that appears in the program and do not connect your device until this guide tells you how to connect it.

If it's not possible to perform this software repair, you could check the following FAQ topic regarding USB connection problems:

/t5/FAQ/USB-connection-problems/m-p/348074

Don't forget to mark posts that answers the topic as Accepted Solution.

If you find any post helpful, press Kudos.

I'm at disposal for any question.

Best Regards,

[Haffiman]

Had a similar problem with my Z3 compact about a month ago - ended up with a new motherboard!!

The thread here:

/t5/Xperia-Z3-Compact/Xperiaa-Z3-Compact-reboots-when-receiving-call/td-p/1027514