Xperia Z Tablet Won't reboot !!! - Xperia Tablet Z Q&A, Help & Troubleshooting

Hi,
I have just installed official ftf 4.3 update (from 4.2) via flashtool.
After complete, it is impossible to reboot it. Not even recognised as plugged on computer. Screen 100% off.
Does anyone have a solution for that as I have tried to get it charged and pressing power + vol+ (and vol- as well)
When pressing those buttons, only the led aside is blinking once white/red and then 3 times fast white, on loop...
Battery was at 60%.
Thanks for helping.

Related

Xperia P - Fully bricked after flashing with Flashtool

Hi,
I flashed a tft file with Flashtool. After the flashing progress had finished, I keep the phone plugged in for about 30 minutes.
When I came back, I unplugged the phone and tried to power it up.
I kept pressing the power button but nothing happened.
When I plug the USB cable in, the led turns red.
I have tried all button combination but hothing happened.
Could anyone please help me?
Hold vol up plus power button until the phone vibrates for three times
Then try to reflash again,check that you have the right file
aftergr said:
Hold vol up plus power button until the phone vibrates for three times
Then try to reflash again,check that you have the right file
Click to expand...
Click to collapse
I have tried, but there was no vibration
Please write here all actions you have performed. Have you installed CWM? Custom kernel? Which ftf file did you flash?
plus, make sure your phone is fully charged, the red led is usually and indicator for an empty one
And can you connect the phone in flash or fastboot modes?

Possible hard brick

Hi there
I have recently been given a broken Sony Xperia Tablet Z. When the power button is pressed a red light flashes 3 times but nothing happens. When the vol+ and power is pressed nothing happens. When the vol- and power is pressed the red light flashes three times again.
Is there anything I can do to fix it?
Many thanks!
mustango said:
Hi there
I have recently been given a broken Sony Xperia Tablet Z. When the power button is pressed a red light flashes 3 times but nothing happens. When the vol+ and power is pressed nothing happens. When the vol- and power is pressed the red light flashes three times again.
Is there anything I can do to fix it?
Many thanks!
Click to expand...
Click to collapse
charge it for several hours, and then try to switch it on or flash with flashtool..
Rootk1t said:
charge it for several hours, and then try to switch it on or flash with flashtool..
Click to expand...
Click to collapse
Hi there!
I've had on charge for a while now and still nothing. Would I need to be able to get into Download mode to flash with flash tool?
Thanks!
After charging the tablet for several hours, do this.
Press vol up + power button and hold until white led blinks 3 times.
(This will make sure the tablet is properly powered off. If after a long period no 3 blinks of white led, then it might mean that tablet state is already off. Press and hold just the power button and see if white led will blink just once then let go power button. The Sony logo should follow. All this is to see if tablet can shut down or power up properly or not. If it cannot do even the basic, then I have no idea how to proceed. This is why I don't trust my important data's in the internal emulated sdcard. I prefer my data to be in removable microsd. If tablet becomes dead and cannot be switched on, then any data that is stored in the unremovable internal emulated sdcard will be trapped. )
If you are lucky, the white led blinks 3 times it means that the tablet can be properly shut down, then ..
Then, connect a usb wire to the tablet. Do not plug the cable to the pc yet. without pressing power button, plug the cable to the PC WHILE you press and hold vol up button.
If you get a blue led at the side of the tablet, it means your tablet can be put into fastboot mode.
Do this first. I believe that once the tablet can be put into fastboot mode, then the tablet can be restored by flashing a recovery boot loader.
If you cannot get the tablet into fastboot mode, then I do not have enough knowledge about how to proceed. You will need to bring it to a service center for repairs.
cphilip said:
After charging the tablet for several hours, do this.
Press vol up + power button and hold until white led blinks 3 times.
(This will make sure the tablet is properly powered off. If after a long period no 3 blinks of white led, then it might mean that tablet state is already off. Press and hold just the power button and see if white led will blink just once then let go power button. The Sony logo should follow. All this is to see if tablet can shut down or power up properly or not. If it cannot do even the basic, then I have no idea how to proceed. This is why I don't trust my important data's in the internal emulated sdcard. I prefer my data to be in removable microsd. If tablet becomes dead and cannot be switched on, then any data that is stored in the unremovable internal emulated sdcard will be trapped. )
If you are lucky, the white led blinks 3 times it means that the tablet can be properly shut down, then ..
Then, connect a usb wire to the tablet. Do not plug the cable to the pc yet. without pressing power button, plug the cable to the PC WHILE you press and hold vol up button.
If you get a blue led at the side of the tablet, it means your tablet can be put into fastboot mode.
Do this first. I believe that once the tablet can be put into fastboot mode, then the tablet can be restored by flashing a recovery boot loader.
If you cannot get the tablet into fastboot mode, then I do not have enough knowledge about how to proceed. You will need to bring it to a service center for repairs.
Click to expand...
Click to collapse
Rootk1t said:
charge it for several hours, and then try to switch it on or flash with flashtool..
Click to expand...
Click to collapse
Hi there!
Thank you both for your help! I can successfully get the device into fastboot mode.
When trying to enter flashmode the device flashes green then goes back to red.
Is there anyway of fixing the device?
Many thanks!
First thing you need is a recovery boot loader.
This link helped me but I use Ubuntu linux to install recovery boot loader into my Tablet z wifi. (I think it is also possible to do it in windows but you will need to install proper drivers)
Before this step, I also used Flashtool under windows 7 to unlock my bootloader. It is not difficult to use Flashtool and unlock bootloader but you must decide how important it is to you to backup TA before unlocking bootloader. In my case, I didn't feel I need SONY bravia engine, so I didn't backup my TA.
1. Use Flashtool to UNLOCK
2. Use Fastboot to install TWRP recovery loader
3. Download a Custom Rom (CM11/CM12/Omnirom./PAC) and save it to microsd
4. Boot into TWRP Recovery, clean data / cache partitions and flash custom rom from microsd
http://forum.cyanogenmod.org/topic/93490-soft-bricked-my-xperia-installing-cm/
To fix the problem, I downloaded CMB from http://forum.xda-dev...d.php?t=2463423. I unzip'd it, and used fastboot to install the boot.img: "sudo ./fastboot -i 0xfce flash boot pollux-windy/cmb/boot.img". Then I rebooted into TWRP recovery, and wiped/reformatted everything (including /data, which CWM wouldn't mount or wipe). I then sideloaded the CM11 ROM, booted back into TWRP, and installed CM11 from within TWRP. I ended up reflashing the CMB boot.img back on, even after installing CM11, and everything seems to be running great now.
Hi, same problem. Good answer was here : https://fr.ifixit.com/RĂ©ponses/Afficher/273255/black+screen+and+red+led+blinking+3+times#
In fact, my Aukey Quick charger did the thing: https://www.amazon.fr/AUKEY-Charge-Chargeur-Secteur-Samsung/dp/B01AHY1XAY

Help.! Hard Bricked after restore of NANDROID backup...!!!

I accidentally restore a backup (of my previous Z2 which was on my sd card through TWRP) on my Z2 on Exsistenz LP ROM yesterday. After that phone wont boot. Battery was .70% at the time of death. Red blinking led is seen when connected to usb cable. POWER + VOL UP doesn't give 3 vibes as intended, in fact nothing. Neither red hard reset button(Tried pressing it for >3mins). Cannot enter flash mode or fast boot modes .(tried to flash stock ROM through flash tool-failed). Only red blinking LED appears when usb cable connected.
Wierd to found when I press hard reset button while pressing POWER button it gives 3 vibes. But nothing changed.
Tried "pressing and holding all 3 buttons (power,vol+and vol-) all at the same time till it vibrates once then let go of the power button and vol+ but keep holding vol - while plugging in the usb cable this MiGHT boot your phone into flash mode" But didn't vibrate while holding all 3 buttons.
Its out of warranty period as well.
Please help me to recover to recover??? :crying:
use flashtool and flash stock ftf.
connect phone with usb cable when flashtool prompt to connect the phone
jhha said:
I accidentally restore a backup (of my previous Z2 which was on my sd card through TWRP) on my Z2 on Exsistenz LP ROM yesterday. After that phone wont boot. Battery was .70% at the time of death. Red blinking led is seen when connected to usb cable. POWER + VOL UP doesn't give 3 vibes as intended, in fact nothing. Neither red hard reset button(Tried pressing it for >3mins). Cannot enter flash mode or fast boot modes .(tried to flash stock ROM through flash tool-failed). Only red blinking LED appears when usb cable connected.
Wierd to found when I press hard reset button while pressing POWER button it gives 3 vibes. But nothing changed.
Tried "pressing and holding all 3 buttons (power,vol+and vol-) all at the same time till it vibrates once then let go of the power button and vol+ but keep holding vol - while plugging in the usb cable this MiGHT boot your phone into flash mode" But didn't vibrate while holding all 3 buttons.
Its out of warranty period as well.
Please help me to recover to recover??? :crying:
Click to expand...
Click to collapse
Something similar happened to me recently...wonder if this is a bug in a new release or something
This is what I did.
If you can't turn off phone, turn it off using the hard reset button http://sony-xperia.mobi/eng/sony-xperia-z2/231-how-to-do-a-hard-reset-and-reboot-a-sony-xperia-z2-physical-hard-reset-button-sony-xperia-z2.html
There's a really good guide on bricked z2 somewhere on xda but I can't find it anymore . What it said was useflashtools and flash and old ftf e.g. 4.4.4 or 4.4.2 and make sure to wipe apps_log and user_data in settings.
This might also help http://forum.xda-developers.com/showthread.php?t=1849170
Thanks for advice. The problem is it wont connect in flash mode. (attached usb with VOL DOWN button pressed & hold still gives only red blinking led)
jhha said:
Thanks for advice. The problem is it wont connect in flash mode. (attached usb with VOL DOWN button pressed & hold still gives only red blinking led)
Click to expand...
Click to collapse
Did you get it fixed?
jhha said:
Thanks for advice. The problem is it wont connect in flash mode. (attached usb with VOL DOWN button pressed & hold still gives only red blinking led)
Click to expand...
Click to collapse
If you restored another XZ2 with LOCKED BOOTLOADER's backup you probably killed your phone.
Was your bootloader unlocked?
Restoring anothers TA partition kills your device because drm keys are uniq

Xperia don't turn on :c

Hi
My Z Ultra stays on android logo. Reset button don't work and power too. I tried reboot from adb (because its connecting normaly) and now stuck on black screen with red led. It's not charging, i left for like 2 hours and its only reboots to baterry symbol and reboot again. Can't get into flashmode and fastboot, red led appears and nothing else. What can i do?
Did u try power button + vol up for 10 sec? Then when he vibrate put charger in and go to bootloader for fastboot kernel or whatever you want
I just tried and it's don't vibrate
I think if I remember correctly red LED and no response is a motherboard/flex cable issue (could be wrong) this happened to me when I flashed the wrong software, I was still under return policy.
But yeah if flashtool isn't picking it up, you're SOL.

Z2 Tablet not booting after Magisk install

So thanks to Netflix and its implementation of security net I wanted to install Magisk on my Z2.
Im running the stock 6.0 Rom which was just rooted with supersu.
My tab was charged 80+%
I uninstalled SuperSU, went to TWRP and flashed Magisk.
After flashing the screen stayed black. Nothing at all.
Long press power gives me one vibration after 3 seconds but nothing else.
Long press power & vol - gives me the same vibration
Long press power & vol + gives me nothing
Connecting the tab to the computer gives me nothing. No device recognised (no adb, no fastboot)
Connecting the tab to a charger has the LED blinking red.
Long pressing power makes the led turn solid (no blinking)
Power & vol - the same
Power & vol + nothing
Basically I seemed to somehow have turned my tab into a brick oO
I can't even get it to boot to twrp or fastboot
Atm I'm letting it charge just to see if that was an issue (I doubt it)
Otherwise the only thing I can think of is opening it and disconnecting the battery...maybe that will help?
Ok nevermind. I managed to get into flashmode and reflash. tab is now working again!
How did you get it to be recognized and reflash? I flashed mine after rooting and I get similar behavior to what you were getting. It will vibrate once if I press the power button, I can get it to turn the light blue if I hold the up volume and the power button while plugged in. The screen will not turn on at the Emma tool doesn't seem to recognize it.
Same Problem here.
@pseudoheld could you please provide some more info?

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