topic Re: Ghost touch, bootloop, can't turn on what should i do? in XPERIA archive

Z2 won't turn on, flashing Sony Logo, only connects in Fastboot mode

Billiam1 — Wed, 26 Oct 2016 11:19:04 GMT

Yesterday my Z2 suddenly stopped working on an almost full charge. I have tried charging it in various ways, to no effect. I then went to a repair shop where they opened the phone, disconnected and reconnected the battery, which did nothing. They then tried a new battery which also did nothing.

EDIT: I read a post for an identical problem but on an Xperia T which was solved by using Update Service because PC Companion didn't work - however, because Update Service is discontinued I cannot use that fix, it just gives an error message and closes.

Right now the status of the phone is:

Unplugged:

Completely unresponsive.
All combinations of button presses have no effect.

Plugged into wall charger:

LED flashes bright red, then turns off, then dull red for a slightly longer time while the screen flashes the white Sony and Xperia logos. Then it repeats.
Holding the power button causes a single vibration after a while, but no other effect.
All other buttons and combinations have no effect.
Can't enter flashmode or fastboot mode.

Plugged into PC via USB:

LED flashes red, green, red (no gaps), then a pause, and red, green, red again.
Pressing volume up will take it to fastboot mode (solid blue light).
Volume up + power has no effect.
Volume down has no effect.
Pushing red off button next to USB also does nothing.
The PC makes the USB connect sound and then the disconnect sound very soon after, repeatedly, unless the phone is in fastboot mode.

While I can access the phone in fastboot mode, it is not able to connect in Flashmode so that it can be repaired by Xperia Companion.

Any advice would be appreciated.

Re: Z2 won't turn on, flashing Sony Logo, only connects in Fastboot mode

Lord_viridis — Wed, 26 Oct 2016 12:10:03 GMT

Hold volume down whilst plugging in USB, anything?

Re: Z2 won't turn on, flashing Sony Logo, only connects in Fastboot mode

Billiam1 — Wed, 26 Oct 2016 12:16:16 GMT

Just tried it, nothing happens unfortunately.

Re: Z2 won't turn on, flashing Sony Logo, only connects in Fastboot mode

Didrik — Wed, 26 Oct 2016 14:08:13 GMT

Hi @Billiam1,

I'm really sorry to hear about your phone. Unfortunately what you are describing sounds (to me) related to hardware, there are however a few things that can be tried.

First of all charge your for at least an hour using the original charger connected to a wall socket. After charging your phone, press and hold the power button until you feel the phone vibrating and see if it's booting. I'd also recommend making sure there isn't anything wrong with your charger or USB-cable, an easy way to try this is by charging another device with your charger.

Also make sure the charging port of your device is free from dust and lint. If there is any, gently remove using (for example) compressed air or a soft plastic toothbrush.

Have you tried booting your phone without your SIM- and/or SD-card inserted? If not, is there any change if you try this?

Force the device to restart by pressing and holding down the power button for 120 seconds. Then charge the device until the notification light lights up. This can take up to 30 minutes. Once the light lights up, try to turn on your device.

If the above didn't help my next recommendation is that you try performing a software repair using Xperia Companion. Since the phone is meant to be shut down during this entire procedure it might be possible. Should this not be possible I suggest you contact your Local support for information on how to have your device sent to and examined by an authorized service centre.

Please let me know how it goes!

Re: Z2 won't turn on, flashing Sony Logo, only connects in Fastboot mode

Vorakan — Thu, 27 Oct 2016 05:18:06 GMT

I got the same problem of this !!

But sometimes my Z2 can be opened but it still self-restart every 15-30 mins before it close and stuck in bootloop.

I've already tried software repairing but nothing change

now z2 still restart so what should i do next?

Re: Z2 won't turn on, flashing Sony Logo, only connects in Fastboot mode

Didrik — Thu, 27 Oct 2016 09:02:26 GMT

Hi @Vorakan,

Sorry to hear that

Can you try booting your phone without a SIM- or SD-card inserted in your phone, is your phone still rebooting by itself?

Keep me posted!

Re: Z2 won't turn on, flashing Sony Logo, only connects in Fastboot mode

Billiam1 — Thu, 27 Oct 2016 14:39:53 GMT

Hi @Didrik

I tried everything you suggested but it is still unresponsive. I guess I have to send it in for repair.

Re: Z2 won't turn on, flashing Sony Logo, only connects in Fastboot mode

Vorakan — Thu, 27 Oct 2016 18:14:20 GMT

yes, i did and didn't work

now i can't boot my phone without charging ; (

Re: Z2 won't turn on, flashing Sony Logo, only connects in Fastboot mode

Didrik — Tue, 08 Nov 2016 09:49:00 GMT

Sorry for my late reply, I've been out of office for a while.

@Billiam1, In that case I would advice you to have your phone sent in.

@Vorakan, Have you been able to connect a different charger? If there, however, wasn't any change after repairing the software in your phone I would recommend that you have your device sent in to be examined by an authorized service centre.

I understand the inconvenience sending your phone away may cause and I'm sorry about that. Let me know if there is anything else you're wondering about!

Please keep me updated on your case

Ghost touch, bootloop, can't turn on what should i do?

Vorakan — Wed, 30 Nov 2016 05:51:03 GMT

My z2 got many problem for a while.

First it start got a ghost touch but not always

Just for an hour then stop and come back in 2-3 days again

It's be like this about 2 month

after that

My phone restart itself at first just one time per day

Lately in every 15 mins

Then it shut down and can't turn on

When i connect charger and led red light appear but blinking, bootloop

After bootloop i tried to remove charger and chill then connect it after 2 hour

Not thing appear, no red light, no bootloop i tried every botton volume up w/ power etc. Nothing work

But when i ignore it just one day. It can open normaly and then i start to use my phone again

It back to restart it self and got other symtoms above ensue

I just wanna know that what kind of problem, hardware or software

I have tried to flashrom, software repair, remove sd card, remove simcard etc.

Now my phone is out of warrant so if it got a serios problem that i can't fixed by myself or hardware problem and not worth fixing i will think about having my new phone

Thanks

Re: Ghost touch, bootloop, can't turn on what should i do?

Didrik — Mon, 05 Dec 2016 14:55:51 GMT

@Vorakan, sorry for a late reply.

My guess is that what you are experiencing is related to hardware rather than software considering that a software repair didn't help with sorting this out. My recommendation is that you have your device sent to an authorized service centre to be examined.

Let me know how it goes!