Xperia Z3+ randomly reboots

[qw111]

My Z3+ randomly reboots multiple times/day(30+). I've tried restoring with PC Companion, hard reset, factory reset, safe mode, everything. I tried running diagnostics but it's a crapshoot. Sometimes I will get a neverending loading loop and sometimes I'll get a error message, "Unfortunately Diagnostics has stopped." and then the phone will reboot iself.

[qw111]

Did you guys download the Spectre theme yet? It's pretty slick.

[adamlee2014]

Same problem here, 3 random reboots and one sub reboot whatever that means.  My device usually freezes then reboots.. Definitely software issues and could be fixed in an update

[adamlee2014]

@Rickard maybe you could comment in this and what would you suggest? Safe mode and repair via pc companion did not resolve the issues. Also when I look at the system incidents it only says the date and time no information.. I have the send usage statistics on and still don't see any log

[Rickard]

I'm very sorry to hear that

@qw111

As this also happens after a software repair, in safe mode and without SIM and SD card i'm afraid it sounds like something that needs to be investigated and repaired at a service location. Have you been in contact with your dealer regarding this? After what you tested i can't see how it would be software related.

@92

A bad SD card or SIM card can cause the phone to restart itself. If you have any SD card, try removing this and also try the phone with another SIM and see if it still happens.

[adamlee2014]

It's definitely software related as yesterday my device rebooted while uninstalling 2 apps... The first one uninstalled fine and then as I went to uninstall the second app nyw device froze and rebooted.. And then uninstalled the app with no problem

[adamlee2014]

@Rickard I've got a genuine scan disk ultra SD which caused me no problems in my z3 as I never had random reboots also using the same sim card my Z3 was fine. I've had my sim replaced my three so my sim is brand new yet I still have random reboots with my Z3+

[qw111]

I know it's a software issue because I can play games out of safe mode with my SIM and SD cards in the phone for hours without a random reboot. It's only when I try to do anything else where I'll get a random reboot.

I've since cut my losses on thing expensive, unreliable brick of a phone and got myself a Z5. The Z5 works just fine. I'm going to sell the Z3+ as soon as I can get it repaired by Sony Mobile USA.