Xperia Z3 Dual Suddenly Dead

[GForce1059]

Following a recent system upgrade to my Sony Xperia Z3, the battery started running down quickly, then most recently the Bluetooth suddenly switched off whilst on a call and within an hour the phone shut down and will not switch back on.
I have had the battery replaced and all that happens when you turn on the phone is that "Sony Xperia" flashes on the screen then the phone goes dead. If the battery lead is disconnected and reconnected it does the same thing. I have consulted with a few phone repair shops and they have all said that they believe the problem is due to the system update.

The Xperia Companion does not seem to work because it will not recognise the phone when it is connected. The reset option using the On and volume  down buttons does nothing or even the reset button next to the sim card slot.

I have had the phone for 16 months and have had no previous problems and it has not been dropped or damaged in any way.

[Uliwooly]

@GForce1059

Just to clarify, you have replaced the battery and the phone doesn't turn on? I doubt that the problem is the update, most likely this is a hardware issue, the only thing to suggest here is to contact your Local support, perhaps the motherboard it's acting up. 

[CameronT]

Hi @GForce1059,

Welcome to the community. I am sorry to hear about this.

While it does sound like a hardware fault, before arranging a repair with your Local support team, try running a software repair using Xperia Companion. Even if XC doesn't recognise the phone, this may help as it attempts to reinstall the boot process. Failing that though, a physical inspection would be necessary.

Good luck.

[GForce1059]

It seems very strange that this happened so soon after the recent update. Also please do not tell me use the Xperia Companion unless you can explain how phone can be recognised by the system when it does not respond when being switched on or using the reset methods already mentioned in my original post.
Does the Xperia Z3 have a motherboard problem why it would die so quick? If it is a hardware problem I won't buying another Sony phone.

[CameronT]

@GForce1059,

If the phone is powered down, Xperia Companion will not recognise it of course. The Software repair process requires the phone to be powered off in order to initiate the software repair process. It will attempt to enter the phone into recovery mode where it will reflash and reinstall the firmware. If the issue is software related, the software repair will fix it.

There could be any number of reasons why this has happened. Without having it inspected, I can't tell you the cause.

[GForce1059]

As with most of the problems I have on this forum, mine will just be added to the long list of unresolved problems highlighted on this forum as these bulk standard responses are not helpful. The local phone repair shop has suggested buying a Samsung because it is more reliable than Sony.

[Uliwooly]

@GForce1059

Are you saying that your Local support by Sony is telling you to buy a Samsung? I highly doubt that.

[GForce1059]

Uliwooly, Are you suggesting that local phone repair shops are all Sony?

[Uliwooly]

@GForce1059

Could you answer my question, have you contacted your Local support ? make sure to click on that <<<< link >>>>> Local support

[GForce1059]

As this Xperia Z3 is the first Sony I have bought and it is the first phone that has broken down, I will just put this down to experience, cut my losses and just go for a more reliable make i.e. non-Sony.