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Xperia Z dead

My XZ died yesterday - I was not able to switch it on.
Pressing Vol+ and power helped and phone switched on again.
WTF? Anyone experienced similar issue?

masi0 said:
My XZ died yesterday - I was not able to switch it on.
Pressing Vol+ and power helped and phone switched on again.
WTF? Anyone experienced similar issue?
Click to expand...
Click to collapse
Yep. It happens when you switch it off and try to turn it on too quickly. Can be fixed with a cold reset, power + vol up.

mines died this morning what was the cause of this

I had Qualcomm Battery tool installed.
Now I have removed it so will see if the problem will reoccur

It happened to me 2 times already. Both times when I was playing with some apps. It must be a software issue.
Mine SGS2 did that too, on some leaked firmware. Had to take out the battery, then.

I just encountered my 3rd instance of this problem... and it's bugging me!
The phone is "alive", but it does not notify you nor wake up. When you call it, there will be a ringing tone, but your phone will not sound nor wake up.
For my third instance, I had a message come in which I did not attend to. My phone died with the LED still blinking (via lightFlow).
So.. do you guys have lightFlow installed too?

I would return the device so Sony is aware of this issue.

Indeed does not sound normal.
Fooled around quite a bit with my Z and did not run into these problems.
Perhaps sending it back while you still can would not be a bad idea.
Just make sure it is not an app causing this before doing so.
Kind regards, Stefan.

Xperia Z Dead
Bought my Xperia Z a week ago and was thrilled with it until it just died yesterday for no reason. Symptoms: battery has drained withing 6-7 hours after full charging, phone was quite hot although no heavy apps running. After full battery discharge it just simply would not charge or react to any action: power button, power button + volume up key: both do not work however long I press them. Dont know what to do, so frustrating!!. Do not want to switch back to iPhone....
Any ideas except than just returning it back (got it in Moscow, while I was travelling for a short trip, would need to travel all the way there again and not sure if they accept returns or exchanges...) ??

superpima said:
Bought my Xperia Z a week ago and was thrilled with it until it just died yesterday for no reason. Symptoms: battery has drained withing 6-7 hours after full charging, phone was quite hot although no heavy apps running. After full battery discharge it just simply would not charge or react to any action: power button, power button + volume up key: both do not work however long I press them. Dont know what to do, so frustrating!!. Do not want to switch back to iPhone....
Any ideas except than just returning it back (got it in Moscow, while I was travelling for a short trip, would need to travel all the way there again and not sure if they accept returns or exchanges...) ??
Click to expand...
Click to collapse
I do not think you should discharge the battery 100%.
Infact, I always wait for it to go to 4% a 5% and then charge it.
Did so with my Xperia Play for almost 2 years and the battery seems to be ok still.
If you still can not turn on your phone:
- Plug in the AC adapter using the wall socket and wait for a while.
(I can remember reading somewhere that some devices refuse to charge via USB using your PC if the battery is 100% depleted.)
Hope this helps.
Kind regards, Stefan.

Thaevil0ne said:
I do not think you should discharge the battery 100%.
Infact, I always wait for it to go to 4% a 5% and then charge it.
Did so with my Xperia Play for almost 2 years and the battery seems to be ok still.
If you still can not turn on your phone:
- Plug in the AC adapter using the wall socket and wait for a while.
(I can remember reading somewhere that some devices refuse to charge via USB if the battery is 100% depleted.)
Hope this helps.
Kind regards, Stefan.
Click to expand...
Click to collapse
It has been left there with charger for a couple of days now, used both original sony charger and some other mini-USB i have for a different phone - nothing happens unfortunately

That is a serious bummer!
- Does the RED charging led go on when plugging in charger using wall socket?
- Sounds stupid, but did you try another wall socket and leave it to charge?
- Did you try to remove the USB cable from the wallsocket adapter and plug it back in?
(If the USB bit is not plugged in correctly it will not charge aswell, had this with my phone yesterday.)
Kind regards, Stefan.

Thaevil0ne said:
That is a serious bummer!
- Does the RED charging led go on when plugging in charger using wall socket?
- Sounds stupid, but did you try another wall socket and leave it to charge?
- Did you try to remove the USB cable from the wallsocket adapter and plug it back in?
(If the USB bit is not plugged in correctly it will not charge aswell, had this with my phone yesterday.)
Kind regards, Stefan.
Click to expand...
Click to collapse
No, no lights go on, neither RED or any other colors. Charger is 100% fine - it charges a different phone (Samsung S8300) no problem. So it is defenately a problem with the phone.

Same problem. No charging, Hard reset doesn't work.

My girlfriend XZ white died today "power + vol up" helped. My XZ black didn't have this issue yet.

The Xperia U of my girlfriend had this same issue, and it's related to software. Unfortunately, the only thing you can do is return your phone and get another.
Because on this state, the phone doesn't even connect in flashmode or fastboot mode.
It seems to be some Sony problem, so my advice is that you don't leave your phone get 0℅ battery for the first months.

I seriously doubt this is related to the battery level being low.
Mine died 3 times and battery was close to full.
Hell.. the last time it died (this morning) was while it was charging in the dock!!
Sony ought to do something about this!
Here's a related post in Sony's post. Maybe make some noise there as well..?
http://talk.sonymobile.com/message/431175

Mine died 2 times within 2 days I got it. The sleeping error which can be solved by holding all buttons for 3 seconds. I then took it off stamina mode and hadn't had a problem so far 2 days later.
Sent from my Nexus 7 using Tapatalk HD

superpima said:
Bought my Xperia Z a week ago and was thrilled with it until it just died yesterday for no reason. Symptoms: battery has drained withing 6-7 hours after full charging, phone was quite hot although no heavy apps running. After full battery discharge it just simply would not charge or react to any action: power button, power button + volume up key: both do not work however long I press them. Dont know what to do, so frustrating!!. Do not want to switch back to iPhone....
Any ideas except than just returning it back (got it in Moscow, while I was travelling for a short trip, would need to travel all the way there again and not sure if they accept returns or exchanges...) ??
Click to expand...
Click to collapse
I don't think you have to go to Moscow. Go to the nearest Sony service center, and they'll repair or replace it. if it's unbranded you shouldn't have a problem at all. (Unless you've voided the warranty - box and papers are probably needed.
I did the same with my Arc S which I bought in Poland. (I live in sweden)

cirrus888 said:
Mine died 2 times within 2 days I got it. The sleeping error which can be solved by holding all buttons for 3 seconds. I then took it off stamina mode and hadn't had a problem so far 2 days later.
Sent from my Nexus 7 using Tapatalk HD
Click to expand...
Click to collapse
How do you know it's a solution? Not seeing the problem for the next 2 days doesn't mean much. I saw the problem after a gap of over 3 days.
And to revive it, just VolUp and Power button is enough.
Stamina? I've never used stamina before.. so you can rule that out.

[Q] sony xperia z only has the red led light and phone wont turn on

hi, im new here so please be nice with me and bare with me, right my problem is ive just purchased a second hand sony xperia z the phone was working fully with no faults and I usually put and keep on charge over night to last me all day and this time I woke up in the morning and the phone was switched off with no response only a red led light I have tried all methods to fix this issue such as, volume+ and power buttons no response still then I was goin to try upgrade via flashtool or pc companion but for some unknown reason my laptop wont recognise my phone so im really stuck on what to do next its been nowhere near any water either 100%!! my very last option would be to take it into service repair but that could take upto 2 weeks and need my phone for work, ive also been told it could be hard bricked or have been diagnosed with sudden death but cant get into flash mode at all oh and I have also tried the charge the phone for 24 hours trick but still no response at all when this first happened it even took a good few hours for the red led light to come on when charging but now takes around 5 mins
can someone please help I would be very grateful for you time please take your time to read my post as full as possible
thanks in advance, I NEED HELP FAST, FAST, FAST!!!!!!

Download the Sony update tool click update phone it might say you have the latest version ,click restore phone

Aside from what suggested by juDGEY2k10 above (which should work), did you also check if your charger is working properly?
Try charging it with different usb source (...or another Z's charger if you can find one) with stable and reliable output (~ 1,500mA), let it charged for half an hour then see if you can turn on your phone. Please be reminder that the usb ports of some laptops may fail to charge since their power output may not be stable and sufficient enough.

Sounds very much like what happened with my first Nexus 4. Odds are the battery has decided to completely discharge itself to the point where nothing can revive it. How it happened for you, I've no clue, but the only remedy that can work is simply sending it in for replacement/repair, since you've already tried everything else.

i suggest changing another power source or charger. It does look like its out of juice and not able to to power on.
Maybe use your computer USB with the different cables to single out the problem.
do note that the phone needs about 5% battery to power up. So give it some time, maybe 30 mins to 45 mins and try to power it on again.

littopillo said:
Aside from what suggested by juDGEY2k10 above (which should work), did you also check if your charger is working properly?
Try charging it with different usb source (...or another Z's charger if you can find one) with stable and reliable output (~ 1,500mA), let it charged for half an hour then see if you can turn on your phone. Please be reminder that the usb ports of some laptops may fail to charge since their power output may not be stable and sufficient enough.
Click to expand...
Click to collapse
I have already tried the sony update method and my phone wont connect to the laptop at all it just stays on the red led light I had it connected to the laptop for about 2 hours lastnight hoping something would happen and it didn't

adamtan said:
i suggest changing another power source or charger. It does look like its out of juice and not able to to power on.
Maybe use your computer USB with the different cables to single out the problem.
do note that the phone needs about 5% battery to power up. So give it some time, maybe 30 mins to 45 mins and try to power it on again.
Click to expand...
Click to collapse
hi my charger 100% works I have tried it on an old phone and it charges that no problem im just stuck on what to do I have booked my phone in for repair but before I sent it off I wanted a few more opinions sending it for repair is my last option tbh thanks for your reply

Red LED of death = curtains. Just bad luck. Sorry for you man
Sent from my C6603 using xda app-developers app

I'd leave it plugged in for awhile and see if it turns on then

5worthington said:
I'd leave it plugged in for awhile and see if it turns on then
Click to expand...
Click to collapse
thanks for the reply but ive left it on charger for 32 hours an nothing happened

hello ive brick my phone several times and flashtool always help. which flashtool are you on? (the official sony flashtool dont work) did you install the flashtool xperia z drivers? have you install the adb drivers and andriod sdk tools?
Sent from my C6503 using XDA Premium HD app

Hi guys, I got an Xperia Z of one of my friends to try to boot it up, same boat as OP, black screen, red led, not recognized by pc (no fastboot, no adb shell, no FlashTool).
I tryed to charge also with my Motorola USB cable, no way.
Can we only send back to official assistance?

Try to dissconnect the batery then reconnect it, put it on charge and after a few minutes try to turn it on.
I hope it helps.

One thing to check: does the led come on when plugged in, then disappear when unplugged? If so its probably that the battery isnt charging. If the led stays on (red or other color) for some time after unplugging than it may be something else, the phone is holding power but not booting.
Youve tried hard resetting /shutting down I presume?
This is why I hate phones with sealed batteries, it was almost a dealbreaker in buying this but i gave it a go.
If its the battery and you dont have warranty or insurance (or its too expensive) you can replace it yourself with a little time and research.

I have the same issue, it's because the battery isn't able to hold a charge. This happened to me the day after the recent 4.2 update, I have yet to figure out how to get a warranty replacement as there are no sony stores where I live. However, it turned on briefly when I pressed the volume up and power button together. I saw that the battery was at 1%, I put it on standby to conserve battery but it just won't take a charge.

Same issue here with a family members phone, they want to give it to a friend but can't yet because it isn't working.
They got a new phone and left the Z just sitting on a desk. It eventually discharged but now they can't get it going.
I'm trying to fix it for them.
Red LED, no boot, connect to charger and just get a solid red LED. See how it goes I guess. Can't get it to show up when connecting to PC at this stage. Will try with the official Sony tool though.

Jenkss said:
Same issue here with a family members phone, they want to give it to a friend but can't yet because it isn't working.
They got a new phone and left the Z just sitting on a desk. It eventually discharged but now they can't get it going.
I'm trying to fix it for them.
Red LED, no boot, connect to charger and just get a solid red LED. See how it goes I guess. Can't get it to show up when connecting to PC at this stage. Will try with the official Sony tool though.
Click to expand...
Click to collapse
HI,any update???
I have the same issue too...

I read.somewhere in other thread that putting in the usb then press the volume and volume up for 8 swcond, wait for an hour then try restarting.would work.
This had happen to me twice already, and the only remedy seems sending it to sony. Where they would charge it. But it took weeks though.

The phones dead... went into my phone shop they replaced for a new handset under breakdown (sudden death) no water damage nothing phone was 7 months old..
Sent from my C6603 using XDA Premium 4 mobile app

dsullivan7822 said:
The phones dead... went into my phone shop they replaced for a new handset under breakdown (sudden death) no water damage nothing phone was 7 months old..
Sent from my C6603 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Did you go to a Sony store or service provider retail store?

Dead z1 :(

It seems that my z1 has just given up on life.
I was checking my gmail and the phone switched off. It wouldn't switch on so I tried vol-up and power, it vibrated but did nothing.
Now absolutely nothing will make it show any signs of life, it seems to be completely dead which is weird. No LEDs or vibrations at all, so I guess I'll be returning it :crying:

Dude you ran out of battery. Try to recharge it.

albertobom said:
Dude you ran out of battery. Try to recharge it.
Click to expand...
Click to collapse
I was on 80%! Strangely enough however, the vibration is back when I press vol-up and power. Still no display though.

declan8888 said:
I was on 80%! Strangely enough however, the vibration is back when I press vol-up and power. Still no display though.
Click to expand...
Click to collapse
Now, seriously, try to flash your kernel again.

albertobom said:
Now, seriously, try to flash your kernel again.
Click to expand...
Click to collapse
Flashtool doesn't recognise my phone. The only sign of life is the 3 vibrates when I hold vol-up & power

declan8888 said:
Flashtool doesn't recognise my phone. The only sign of life is the 3 vibrates when I hold vol-up & power
Click to expand...
Click to collapse
That's odd... Well sent it to Sony.

Guess I'm gonna have to

Even mine was dead for sometime today
Even my phone gave me a shock today... Screen switched off and the phone was not responding.... had to reset it through the sim tray!

I get 3 vibrations when holding the reset button next to the SIM tray, but nothing else.

Strange. Vol down and power would reset the phone?
Sent from my C6903 using XDA Free mobile app

Use Seus or PC companion to repair.
Or a flash a recent. ftf by flashtool.
Sent by my Z1 with XDA Fax

Duvel999 said:
Use Seus or PC companion to repair.
Or a flash a tft .
Sent by my Z1 with XDA Fax
Click to expand...
Click to collapse
PC Isn't recognising that it's connected.
I've contacted the ebay seller I bought it from last week regarding a refund or replacement. Should get a reply tomorrow.

declan8888 said:
I was on 80%! Strangely enough however, the vibration is back when I press vol-up and power. Still no display though.
Click to expand...
Click to collapse
I had the same issue your having with my rooted Samsung s4. I couldn't get anything. Bought secondary battery... Son took into verizon came on briefly. My programming USB cable rusted out, had to buy a new jib. That didn't work. I just persevered, I found life when I put in the battery and started hitting the power button repeatedly, 15-20 times
Finally it would turn on, used the jib got it into download mode and flashed the ROM with odin again. Still had some issues so I did a reset then re flashed again, re rooted and started loading programs.
Still not sure if it was/is the power button or system change I made with exposed or other such toolت.
Also now using button savior as a preventative measure. As an added bonus I have 3 batteries and a stand alone battery charger.
Please update your thread as status changes. Hope you get it working.
ヅ Droidatar
(knows just enuf to brick it)
Rooted S4 MDK I545 stock 4.2.2
"If someone helps, never forget to hit thanks ? "

my z1 2 hours ago had died, I solved by connecting it to flashtool with the volume down pressed. I have version .157

I would think faulty battery, had same issue with old s2

No idea what the problem could be, perhaps moisture got into the headphone jack or something and made its way into the phone.
As I said, when I help vol+ and power it would vibrate 3 times to indicate power off however it would show no signs of life when turning it on.
Flashtool wouldn't recognise it nor would PC Companion.
I sent it away to Sony to repair last week - it's currently still with the technician. I'll update the thread as the repair progresses to let you know the outcome! Hopefully it will be a manufacturing error and I won't have to pay for a repair.

I recognize this problem in a slightly different form.
When my battery is completely dead and I try to charge it and turn it on it won't. It gives me the same three vibrations. I let it charge on the fast charger the whole night. Nothing. (0% charge, light stays red all night long.)
Then I reset it (red dot next to SIMtray) (which does nothing, no vibrations) but it works if not connected to the charger (it only vibrates then)
After reset I try to charge it and it goes automatically on but when it goes on it stops charging after splash screen and turns off and stops charging.
Then it's just trial and error. Reset, no reset, manual turn on, turn off, reset with USB connected, without and eventually it charges and I can turn it on.
After that it works fine.

Z1 Sudden Death!

Hello!
Yes, it's right. I guess it's my turn to get the sudden death of my beloved Xperia Z1.
It's dead, but I don't think it's completely dead and I'm hoping for some help from tech navy's around here and from other people who got the sudden death issue so here's what happened:
I woke up early in the morning at around 8 am and the battery was at 9% and I had no time to put it on charger because I'm in a hurry, so I said I'll put it on charger in car same as always. I use the magnetic cable that I removed from the dock (cuz my sis lost my charging cable, I have to use my magnetic one every time) and I almost always charge my phone in the car with that cable. The phone was working perfectly so I locked the screen and connected the magnetic charger and the charging light didn't come on so I wanted to check if it's charging.... and found out that it's dead (no charging LED, not turning on, no Power + Volume up vibration, no nothing) so I went back to the house and put it on my mother's charger (Micro USB) and got a red LED light as if it's charging, but it's not. still doesn't power up and everything and yes, I've tried the reset button near the SIM card, nothing wants to work.
I took it to Sony service center later that day and they said it will take 3 days because of the traffic they're having, and I have no warranty because I bought it on release which is more than a year ago. After 3 days, they told me that it's a motherboard problem and it got water damaged (while the last time I put it in water was about 2 weeks before that day, and he saw that the white thing is red) and it can't be fixed pay some money and take a new one (just phone no boxing no nothing) and I said no thanks and took the phone to another shop and he checked it and told me that he can't fix it.
I cracked open my phone and I can't see any water damage in it, everything seems to be perfectly fine. I've tried everything I could think of, everything I read on the internet, but nothing seems to work, and the pc doesn't even notice that I connected my phone, I've tried connecting it in fast boot, and flash mode, but nothing works it just keeps the red LED light on. Disconnecting the batter didn't help at all.
I called Sony service center and asked them if I can buy a motherboard from them and they said that they don't even have replacement parts for any Z series phone because they're not authorized by Sony to repair the waterproof/resistant Z series phones (The service center here isn't Sony, but it's an authorized service center by Sony) so at that point I lost hope to get it repaired.
All that happened back in January, but now that summer is here, I want to fix it somehow. But I have no clue where to start, and I'm not sure how to confirm that it's the motherboard that's damaged. is there a way to find exactly where the problem is? I have a soldering iron and everything needed to repair the phone, all I need is to know where's the problem! I can buy parts off of internet, and I will if I need to, but I'm not gonna buy a whole motherboard from ebay because I simply can't trust that motherboard.
Sorry for the lengthy post, and thanks for any help you'll give.
Regards,
~J2C

Bump

Bump?

leave your phone for a weed and try to charge it . if your phone still led light I think your battery die not your phone .

Your battery is dead, if you have taken it apart already just buy a new battery or buy a micro usb lithium battery charger from ebay and hook it up to your battery (by itself) I posted about my experience here http://forum.xda-developers.com/xperia-z1/help/red-led-flashes-charging-solution-t3141345 If you have access to voltmeter you can check the battery voltage, it is like 2.6v or there abouts. Your phone will not charge a battery this far gone.
Nz

thaiminh40 said:
leave your phone for a weed and try to charge it . if your phone still led light I think your battery die not your phone .
Click to expand...
Click to collapse
Huh? I don't get it. btw we don't have weed here in my place.
notzippy said:
Your battery is dead, if you have taken it apart already just buy a new battery or buy a micro usb lithium battery charger from ebay and hook it up to your battery (by itself) I posted about my experience here http://forum.xda-developers.com/xperia-z1/help/red-led-flashes-charging-solution-t3141345 If you have access to voltmeter you can check the battery voltage, it is like 2.6v or there abouts. Your phone will not charge a battery this far gone.
Nz
Click to expand...
Click to collapse
I don't think that the battery is dead, because:
1- I get a STABLE red light when I put it on charger or connect it to PC.
2- I've tried a method that's said to revive a dead battery on a Z1 (or Z series) and it didn't work.
3- If it was really the battery, then this should've worked! But no, When I connect the motherboard with test point properly connected, the PC just doesn't recognize the phone.
Regards,
~J2C

Just2Cause said:
I don't think that the battery is dead, because:
1- I get a STABLE red light when I put it on charger or connect it to PC.
2- I've tried a method that's said to revive a dead battery on a Z1 (or Z series) and it didn't work.
3- If it was really the battery, then this should've worked! But no, When I connect the motherboard with test point properly connected, the PC just doesn't recognize the phone.
Regards,
~J2C
Click to expand...
Click to collapse
I followed all those methods as well and none worked for me either. Measure your battery voltage with a voltmeter, it is the cheapest way to verify if the issue is battery or something else.
Nz

notzippy said:
I followed all those methods as well and none worked for me either. Measure your battery voltage with a voltmeter, it is the cheapest way to verify if the issue is battery or something else.
Nz
Click to expand...
Click to collapse
Hello!
I finally got access to a multimeter today and checked my battery's voltage and it was about 3V so I can confirm that the problem is not the battery.
It must be some kind of hardware problem, and I don't think that you really did try the test point fix and you just said yea yea bla bla YOUR BATTERY IS THE PROBLEM! No, it's not.
Any other suggestions?
Thanks!
Regards,
~J2C

3v is still to low in my opinion
Sent from my C6906 using Tapatalk

notzippy said:
3v is still to low in my opinion
Sent from my C6906 using Tapatalk
Click to expand...
Click to collapse
I've charged it, and still not working.

Bumping cuz I want my good ol' Z1 back

I've experienced a "sudden death" once, it was really scary to me.
I've flashed a custom rom, rebooted and went to bed directly without waiting "android is upgrading" or whatever.
The next day I saw that my phone was not opening. There was no red led to indicate low battery, I plugged to charger for some seconds and didn't see a red light to indicate "charging" so it was weird to me. The solution was to charge it for more than 30 minutes and afterwards it went to 1%! Maybe you should try to charge with the cable like normally and wait for a while
Source: http://support.sonymobile.com/global-en/xperiaz1/faq/I-cannot-power-on-my-device/
Hope it works! 30 minutes was so long and worrying though :silly:

TFutoMaki said:
I've experienced a "sudden death" once, it was really scary to me.
I've flashed a custom rom, rebooted and went to bed directly without waiting "android is upgrading" or whatever.
The next day I saw that my phone was not opening. There was no red led to indicate low battery, I plugged to charger for some seconds and didn't see a red light to indicate "charging" so it was weird to me. The solution was to charge it for more than 30 minutes and afterwards it went to 1%! Maybe you should try to charge with the cable like normally and wait for a while
Source: http://support.sonymobile.com/global-en/xperiaz1/faq/I-cannot-power-on-my-device/
Hope it works! 30 minutes was so long and worrying though :silly:
Click to expand...
Click to collapse
Nope!
You obviously had a dead battery, and I've already left it on charger for 2 continuous days.
I clearly have a hardware problem. Probably a dead chip as the phone died the moment I connected the magnetic charger.

Just2Cause said:
Nope!
You obviously had a dead battery, and I've already left it on charger for 2 continuous days.
I clearly have a hardware problem. Probably a dead chip as the phone died the moment I connected the magnetic charger.
Click to expand...
Click to collapse
If u disasassembled your phone then simply disconnect battery, connect phone to pc (with disconected battery) with pressed volume button down, if phone working u should see blue led light (flashmode)-if this happen then your battery is fault (maybe not, try to flash stock rom if u see flashmode), if not then it is mainboard.

Dadovvv said:
If u disasassembled your phone then simply disconnect battery, connect phone to pc (with disconected battery) with pressed volume button down, if phone working u should see blue led light (flashmode)-if this happen then your battery is fault (maybe not, try to flash stock rom if u see flashmode), if not then it is mainboard.
Click to expand...
Click to collapse
I don't think that you actually read the first post, but no problem.
The computer doesn't recognize the phone at all, with or without battery. And I've posted a link a couple of posts back that leads to a "hard brick fix" thread and even that didn't work for me.
Anyways, I just tried what you told me to try, but no. No flashmode, no fastboot, no nothing.

Just2Cause said:
I don't think that you actually read the first post, but no problem.
The computer doesn't recognize the phone at all, with or without battery. And I've posted a link a couple of posts back that leads to a "hard brick fix" thread and even that didn't work for me.
Anyways, I just tried what you told me to try, but no. No flashmode, no fastboot, no nothing.
Click to expand...
Click to collapse
Yes i actually read your post but sometimes phone will not be able to connect with pc if battery is fault, it happens when user have Sleep of death, thats why i say to connect withouth battery to pc.

[Q] Sony Xperia Z1 - Completely dead (no led/no nothing)

Hello.
Please take your time to read this message.. It contains detailed information about this case...
I have a broken Z1 phone which I'm trying to fix. It all started with the phone turning off randomly, and wasn't possible to turn it back on. Not using the power button/red reset button or using power + volume up together (this worked previous times).
When the screen died, I could see white blocks of pixels moving around a few seconds before it completely shut down. There were no signs of life after that, the LED was completely dead as well. The computer didn't notice the device if I connected it with a USB cable. If I tried to charge the phone, the LED wouldn't turn red.
I decided to wait for a week in order to see if the battery could run out of charge. So after a week I took the USB cable and started to charge it. The LED turned back on, with a red color, which is correct when it is charging.
I thought it would work to boot - but nope, it did not work at all. Now is the time I decided to open up my device. I used a heat gun to heat the back edges of the phone. I then used some palastic tool to open the back cover from the phone. It all went very smooth and I disconnected the battery from the phone (removed the cable from the motherboard).
I let it be for about 10 minutes. After that I inserted the cable back to the motherboard, and tried to boot. This time, nothing happend again.. So I started to charge it, and a screen came up saying 1% battery... So I let it charge the battery for a few hours until it rached 100%.
The battery is now 100% charged. The phone still refuses to boot up the first time. The second time I tried, it worked. I was able to connect my phone to my computer, so I took a backup of all files. I downloaded Sony PC Companion, and made a factory reset. This went very smooth as well.
I thought everything was fixed after this - but nope. The phone randomly shuts down a few times, and each and every time, I'm just starting it again (it did crash both when I was using it, and when I did not). I was speaking on the phone with it yesterday for 1 hour (used a bluetooth device), without the back cover connected to the phone. The call went very good and the phone didn't crash anymore that evening.
I thought everything was good, once again. So I was letting my phone be powered on during the night when I was sleeping. When I woke up, I went to check the phone - and it was: dead.
Since this, I have not been able to power it on again. No matter what I do. I have tried to disconnect the battery, check for cables that aren't fixed and so on.. But everything seems to be OK.
My thought was that the battery was bad, so I went to a store in order to check if the battery is OK or not. They tested the battery with some kind of device, and said it has about 40% charge left.. And they didn't see any issues with it.
So... now I'm wondering, what kind of parts do I need in order to fix my phone? Is it just a new battery, or is it the whole motherboard that is gone? What do you think? I know you guys are very experienced, so I have high hopes of help from you.
Regards

Hello!
Sorry to hear about what happened to your Z1, I'm currently in the state that my phone has a red LED when connected to anything and stays like that, PC doesn't even recognize it.
I see your problem is different, I'd suggest you to start here and hope for the best. Unfortunately I can't do that to my phone because PC is not recognizing my device.
Good luck
Regards,
~J2C

Just2Cause said:
Hello!
Sorry to hear about what happened to your Z1, I'm currently in the state that my phone has a red LED when connected to anything and stays like that, PC doesn't even recognize it.
I see your problem is different, I'd suggest you to start here and hope for the best. Unfortunately I can't do that to my phone because PC is not recognizing my device.
Good luck
Regards,
~J2C
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Thanks for your reply. I have already tried that, however, my PC is not recognizing the phone either - so I'm not really sure how to proceed.

Robinjoeh said:
Thanks for your reply. I have already tried that, however, my PC is not recognizing the phone either - so I'm not really sure how to proceed.
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Then all I can say is.. Welcome abroad!

Just2Cause said:
Then all I can say is.. Welcome abroad!
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Well, thank you...
I decided to take apart the device even more, and I found something on my motherboard, which probably is rust.
Check it here:
http://forum.xda-developers.com/xperia-z1/help/dead-motherboard-sony-xperia-z1-pictures-t3143905

Hi, I think my z1 is not yet completely dead, it still recognized by my PC. Its just no display, is there way to fix this issue,?thanks

MEandMC said:
Hi, I think my z1 is not yet completely dead, it still recognized by my PC. Its just no display, is there way to fix this issue,?thanks
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Hello.
Have you tried Volume up + power button pressed together for about 10-15 seconds? Do you feel any vibrations, how many?

Robinjoeh said:
Hello.
Have you tried Volume up + power button pressed together for about 10-15 seconds? Do you feel any vibrations, how many?
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Yes, I watch it over YouTube. Still not working

MEandMC said:
Yes, I watch it over YouTube. Still not working
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Download Sony PC Companion, plug in your phone and follow the instructions in order to reset your phone. If that doesn't work, then you have probably had water or some other hardware failure.

Is this problem will cost me a lot of money if I'll bring it back to Sony for them to repair?

MEandMC said:
Is this problem will cost me a lot of money if I'll bring it back to Sony for them to repair?
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Not if you repair via Sony PC Companion. It will re-install the system on the phone, so in case it is a software error, it will be fixed.
However, if that doesn't help, then you need to check if you have any warranty valid on your phone. Even if you have warranty, it is not sure that Sony will cover costs for repairing your device. For example water damages will most likely be refused, and you'll have to pay for it yourself. I don't know how much it would cost though.