yashsingh1/xdaforums huggingface dataset:
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] rcstar6696:
Did you try an hard reset ?? Press Volume up and power button at the same time for 10 sec. Then the device should start if you have no Hardware fault
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] uragano47812:
Yes i have done all the possible combination

vol- and power

vol + and power

Pressing the small red button for 120sec

vol+ and vol- and power

Now i have let it dry again the battery and this morning i have got again the red led using vol- and usb cable and quickly plugged the charger with the magneto cable and the red led is still on. Now i wait some hours and see if it will wake up again like the other time.

Anyway the problem is even if it will boot up if i want to reflash it using PC companion repair tool or using Flashtool program i need to shut down it and press vol- and plug again usb and i'm afraid that it will not work again. Is a there a method to flash it with starting from a working ON status?
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] rcstar6696:
OK thats Bad is your device rooted ? If yes we have a chances to flash an ftf via recovery without shuting down but your bootloader must be unlocked too. But this is the smallest Problem we can Boot into fastboot via ADB and unlock bootloader. If you need more help to do this things write me
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] sfkaudi:
Hey there

Have exactly same issue as you rcstar 6696

Have done everything as you but no go

Only solution was completely discharge batt. 2 weeks or so

Then it was possible to start up by this solution, and after I received the ota of 1.200 NCB. Downloaded and installed normally without issues, after that haven't reboot it

As I think it could be a issue in kernel software for z2 tab SGP 521, but I don't know!!!

But for now it's running perfect
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] rcstar6696:
This is a kernel issue 100% but its not easy to fix it without unlocking bootloader the only way is to wait to the Next ota update or get flash the kernel ein via flashmode but you can't use it at the Moment
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] bacon612:
Can you please explain your fix? I've been dealing with this issue for almost a year with my z2 tablet.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] rcstar6696:
What do you mean unlocking bootloader or flashing New kernel ?? It can fix the Problem but its not sure. If you unlock your bootloader you can flash custom Roms like cyanogemod. Cyanogemod or PAC have his own kernel and i never heard Form a user that they have problems like yours.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] bacon612:
I have been running cm12 since I got my z2 tablet in may 2014. I don't think this is a software issue that can be fixed with a kernel. This thread is full of users that are having this power issue. It must be hardware related.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] rcstar6696:
Yes but all user have the Problem on stockrom i never hear that on PAC or Cm and i'm the maintainer for PAC and m5 kernel developer and we maintain all Sony devices based on cm like z3 z1 z2 z3c z1c
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] bacon612:
I have the problem. Doesn't matter which ROM.

What I did notice is when my tablet won't power on is that if I use a blackberry playbook charger (5v 1.8amp) I can get the tablet to charge and power up without having to wait till its fully discharged.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] dantez_:
It happen at my Z2 sgp521 with CM 12.1 when i reboot for install latest nightly, now i stand by for complete discarging, do you have other suggestion

tanks
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] dantez_:
I resume to live my z2 with flashtool for windows, with linux not working, only need connect device with flashtool running and after connected at charger after 10 minutes it boot, all ok

now i've fear to update cm nightly or rebooting i'm coming to make uptime record
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] Geronimo.X10:
FYI: Cannot turn on Tablet Z2

May someone try, Rest + Power.

http://xdaforums.com/showpost.php?p=63397372&postcount=7
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] jbellanca:
Happened to me this week. I saw the 5.1 update come across my Z2 tablet a little while ago but ignored it. Finally tapped "Install" (plugged in with 98% battery)... about 5 seconds later, the tablet turned itself off, and nothing I do will get it to turn back on again. Tried holding power, holding power+volume up, holding power+volume down, volume up/wait 3 secs/power, and the little orange button by the SD card... nothing. I think the 5.1 update bricked it. Any other ideas? I did call Sony and they couldn't get it to turn back on.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] Victor MacCobby:
Facing the same problem, I tried all the possible solutions ( power button + Vol up key, I pressed the red button, which is just beside the SIM card portion) but nothing seems happening.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] atoyu:
try reflash the boot.img

when i update the cm12.1 (4/11) got this problem, fixed after fastboot the boot.img

http://forum.cyanogenmod.org/topic/117551-cm121-11-04-nightlies-defunct/
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] perrytallirico:
may I ask what they charged you??? I have the same issue, but when I called sony they told me the warranty is expired because the warranty is fron date of manafacture, NOT date of sale......the guy dropped hints that i shouldnt send it to them for repair but buy new....ya right...thanks
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] lbanias:
After one year and only official firmware and updates my O2 branded Z2 tablet decided that it won't restart anymore. I have not powered down or restarted lately, 6 months or so, but I never had this sleep of death. Now it shows no signs of life with Sony charger, PC-flashtool, power +volume up or down, external battery charge pack, turnoff button... And I am sure that I had at least 60% battery. I put the tablet in my car over night at 5 degreed celsius and after 12 hours still no signs of charging. I guess I'll just have to leave it longer to discharge and hope that it will come alive eventually. If I'm lucky! But if it powers up, what do to if by accident remains out of battery? Again, a few weeks of pause? Would a factory reset solve this? That is unacceptable from Sony to have no answer on such a problem! Because I heard that the tablets sent to service are kept also a few weeks there. My guess is that they wait for the battery to be discharged , like any of us? Would not be simplier to change the battery? But probably this is not the real problem.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] A|ex:
a bit of a resurrection post. I dont suppose that all of you tried to charge the sony with a Power adapter which supports Quick Charge.

I am not too sure if its fluke or what but i have killed a few sony phones using Quick Charge adapters where as the wife always used the charger that came with hers and its been fine.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] carlistillo:
Mine worked after 60 sec pressing the off switch then try again hope it will help you.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] wooly1:
Sorry for the late reply, just saw this comment.

No charge as it was a warranty repair, actually their second attempt at repairing the original fault so they decided to replace the whole inner working of the device.

Been fine ever since so I think it must have been a dud motherboard.

Don't let the service people tell you that the warranty commences from date of manufacture, it is definitely from the date of sale.

What would happen if the shop had it sitting on the shelf for 6 months?

I'm sure they wouldn't try to sell it with half the warranty.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] nathlynn22:
Were you rooted at the time? Or completely stock? Mines currently in for repair. Just hoping they repair it as its under warranty. [emoji120]
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] wooly1:
Well, some say I'm old & rooted, but no, the tablet is not and is stock.

If your tablet is rooted and you have sent it for warranty repair they may well reject it.

The terms of the warranty are voided when the device is unlocked and rooted.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] nathlynn22:
I've got my fingers and toes crossed.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] wooly1:
You might get lucky if it is dead anyway (Just read your previous thread).

If they can't power it on they wont know it's unlocked.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] carlistillo:
Died again after Just installed some apps.....so bad Sony!!!!!!! Tried everything nothing worked......Just push the off button beside the sim slot leave it there for an hour or so...then leave it again and turn on....worked.......f*** Sony come on!!!
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] metty2k15:
i had to get a magnet charger to get mine to boot at all power volume didnt work at all
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] lbanias:
After 2 month in a non-Sony service I got back the dead tablet, now it charges, but it has boot-loops (only Sony logo with continuous restart) . It let me write any official firmware, but still keeps boot-looping. The bootloader is locked I have not tried custom firmwares. Any thoughts ?
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] nathlynn22:
Phoned up today about my repair. Its been repaired 'main board' has been changed. Going through quality control should receive it back after the Monday bank holiday. [emoji120] [emoji1]
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] wooly1:
Good for you, I assume at no charge to you?

They changed the main board on mine as well and it''s still going strong after 2 years hard work, seems to get faster with each Android update:)
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] nathlynn22:
They haven't said anything different so hopefully [emoji120] [emoji1]
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] Mikey:
Mine received the SOD last night and did all the combos trying to get up and running.....so i did a live chat with a Sony rep and this was the conclusion.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] nathlynn22:
Seriously where do you live?

Mine will be delivered tomorrow via royal mail. It was purchased in October 2014 warranty runs out this October accorded to my Sony account. I bought it 2nd hand no receipt(proof of purchase) Managed to get a screen change last year. And last week sent it off and its had a new main board and battery I believe. It was rooted and bootloader unlocked so I'm proper happy. Shame you haven't had same experience.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] Mikey:
I live in illinois....Maybe the person you bought the tablet from had an extended warranty?
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] nathlynn22:
Nope just the standard 2 year warranty we get it the UK with Sony.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] nathlynn22:
Got my tablet back have a new board and battery. Water indicator.... (Not sure why) and some other bits and pieces. Got a new imei now as well which is annoying as my ta let is no longer unlocked. :(
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] Mikey:
Update.....kept charging the tablet, messing with the combination keys, nothing. I was on the verge of throwing it out and suddenly I notice the notification light flashing red 3 times so I continued messing with it. I download xperia companion, the computer recognizes it, I had the drivers installed for both volume up and power and volume down and than reconnected ran the repair tablet on the computer.

It worked, I have no idea how or why but it's back.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] gurningchimp:
Mine's just died and yes, had swapped over a duel charging quick charge adaptor today. Quite annoyed.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] velles2003:
so, same thing happened to me. thankfully for you guys, i waited 2 weeks calmly without charging it and i then plugged it on charger, tried rebooting via +vol and power and it rebooted itself with a vibrate. now it's charging. thanks!
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] Sacktreter:
SOD to me again, best results you get when battery is between 1 - 10% power

Thats the way i get it back:

Rubberband and a match to press both buttons continously down (+Vol and Power)

Start Flashtool and plug USB to PC, put PC-speaker loud and wait for hours

In the log you see every move of tablet, with speaker of PC you hear when tablet comes back

after hours more often tablet comes back, but because +Vol and Power it's killed very quick to restart again

wait till it was killed and blue led ist lightening, then put the match quickly away and you are in fastboot mode

2 Ways are given with FlashTool in Fastboot mode:

take the right boot.img and do a hot boot. In this case your tablet is alive but fall back to SOD when restart again

take the right boot.img and flash it into tablet, restart and ok. This keep my Z2 tablet for ca. 2 days ready to boot, then the SOD comes again.

My last reboot was 6 month before but now i have to reboot again coz lagging. But i don't know any other solution to keep this issue permanently away. I hope to help some.

To build a boot.img watch this:

http://xdaforums.com/xperia-z5/development/root-automatic-repack-stock-kernel-dm-t3301605

and this:

http://xdaforums.com/xperia-z4/general/guide-safe-bootloader-unlock-restore-t3386915

(V4.51 is for Lollipop)

(V5.0 is for Marshmallow)

or look for a ready boot.img in this forum
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] steph43paris:
Hi there,

Just to share my own experience on this crappy tablet (that by the way is wonderful when it works).

As all of you, I experimented the sleep of death, 2 weeks ago. I shutted it down before taking plane, and it never started again. Did try every solution posted here and none of them works. Today, I tried again (like almost every day) to put it in charge and guess what ? The red light appeared and stayed. I waited with hope about 2 hours, and then bang, the light changed colour, that would mean it was charged enough. I tried to push power on, it got me instantly the battery charging icon with 40%. I pressed again the power button for 2 secs, and bingo, tablet started again.

So, as someone said here somewhere, if it happens to you, be patient and let it discharge completely. Not the best solution, but at least, it is one that saves you your 450 euros (Shame on Sony that doesn't provide any solution for this !! )

Hope it will help,

Stéphane
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] quoc.neo:
I want to share my experience. I did it successfully.

a) With Sony charger. (I think any charger will be OK).

b) Discharge tablet (few days or a week) until the red LED turns on when plugging USB cable.

(However, the red LED will turn off after 1 minutes or less -> It can not be charged anymore.).

c) Do as Linkinsoldier's steps, the red LED after the 6th step will keep ON. After 5-10 minutes, my tablet can boot with "Xperia" screen.

Then it show a battery icon (1%) -> I let it continue charge and power ON.

-> It worked.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] yeobj00:
Try put an ice bag on the tablet battery position when charging your tablet. Or try to make your tablet as cool as possible during charging.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] Wilthril:
This tablet is driving me nuts. I can't get it to boot or recognized by the PC.

All I get is a steady red LED for a few minutes when charging with a power adapter. Nothing happens when I try to power it on when charging.

I'd prefer to keep the waterproof feature since that's why I bought this tablet [emoji19]

The ice trick may be my last chance... Any ideas?
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] R1zzle:
I turned my tablet off before charging, since then I can't turn it on anymore. The best I can get is a few minutes steady red light depending on which charger I use but a after a few minutes the red light turns off again and nothing happens after that. The tablet is not rooted and also no better result when using it with my computer.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] Wilthril:
At last I found a way to get my tablet back: if I charge it with enough power (I tried multiple wall chargers with differents câbles, and only my Anker Power bank with portapow cable works), I have a steady red light. After a few minutes a battery icon appears on the screen, and when the red light turned to green I could turn it on.

Good thing I didn't have to flash it again...
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] kn2020:
i had the same problem, try with a lower amps output charger, it should charge just fine.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] shiruba:
Interestingly enough, I had the same issue. I was in a hurry, and I needed the SIM card in it, so I popped that out without turning the tablet off first (The screen was off, so I thought it was off). After that, it wouldn't wake up, or turn on, or reboot, or even charge. That struck me as odd. In my experience, even if the device was pretty well fried, normally it would at least charge.

So I consigned it to the life of a paperweight, and put it on the shelf for about a year. Recently I applied power to the magnetic charging port, and the charge light glowed. I let it charge for a few hours, and then pressed the power button. It powered right up, and is still working. My guess is something gets messed up with the power controller, and the battery has to be drained 100% to fix it - but that takes a long time if it won't be powered up.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] kn2020:
u have to unplug battery connector, it will come back to life instantly, that way u dont have to wait days for the battery to discharged.

i hope it helps.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] Mtb01:
MY z2 tablet seems to have died I've hardly used it since new, led comes on when charging as soon press power up led turns off no power to tablet dead 💀 then when trying charge nothing no led light, no vibration pressing on plus vol button... help
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] n3087:
Hello,

I've recently had same issue. My red led just flashed for about one or two seconds then nothing happend. I tried to charge it over 2 Days with original cable and charger with no success. Tablet went dead while I was on vacation.

When not connecting it to any Charger for about 5 to 10 minutes it would flash red again if you reconnect it after that. So I tried different chargers.

At last I was successfull with my Dell Latitude D600 Laptop (bought 2004). It used to have a very bad power supply on USB-Ports. You always had to connect a second cable, when you wanted to use an external 2,5" HDD. With the cable connected to the Dell Laptop red led stays on. Sometimes it went out, then I disconnected it for about 10 minutes and reconnected it again. Overall it took me about a Day for getting back the charging screen on my tablet. right now it is charged to 100% and is starting again without any problems. I read very much about some other people which sent it in to sony for repair while having this issues.

I hope this will help you getting it back alive.

Greetings,

n3087
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] m_ramone_m:
is there a permanent fix ?

...same probleme here. Removing the battery connector or waiting for 2 weeks works of course.

But is there any permanent fix like a custom rom/kernel or anything ?
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] JimUSA01:
I have the same problem. Is it possible to upload root and system on my tablet? Sometimes it starts up and loads as I wait for some time, but it never starts up after reset
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] emperial67:
A panacea for your device.

For those coming to this post in search of an answer to their seemingly dead device.

After looking at Sony's support website, the answer I found was to hold the OFF button inside of the Micro-SD/SIM cover for a total of 2 minutes (120 seconds).

This is tricky for some users, due to the length of time involved.

It is important that the OFF button remain held for the full duration of time.

After this, your device 'should' power on normally by holding the power button.

This worked for me, and I hope it will work for you!

Thumbs up and stuff if this helps~!
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] Willem1981:
I also had this problem.

Inserting the power cable resulted in a quick second red flash of the led.

I now have reflowed the power/charging ic.

It is under the heatshield behind the micro USB port. (I will place a picture of it later).

I hope this can help somebody.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] oversun:
If it is a permanent solution, it would be great if you post pictures and instructions.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] Willem1981:
After a few charging cycles it fails again. Reheating it makes it come to life once. I have orderd a new chip, when i have it i will try to replace the current one. I will update the post and also take pictures of the process.
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] Gnyff:
Thanks "BladeRunner"!

The 120s hold of the reset switch near the µSD-card worked here! :D

Had tried the button - but definitely NOT for THAT long.... ;)
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] Godecki:
Well, I am joining you guys with the SoD on my tablet. I've been using it since launch with no issues at all, now I am running AICP 14 (Pie) and the device worked fantastic. Some days ago, the SoD came to me. I've tried holding down the OFF button for two minutes, but it didn't solve anything. One thing that changed, is that when connecting to a charger the LED blinks once with red colour for a second. When connected to charger, the tablet draws 0.1A from the charger, however I am afraid it only powers the short circuit. Shall I wait and completely discharge the device?
[Xperia Z2 Tablet Q&A, Help & Troubleshooting] angeljakimovski:
Can you please provide more details on this? I'm having the same problem
[Sprint LG G3] hussam91:
How to bypass "configuring your phone" screen after fresh boot
[Sprint LG G3] Soap:
Are you referring to a fresh flash boot? Or a typical reboot? More detail would be nice.
[Sprint LG G3] aukhan:
Just press thus button combos

Volume up >volume down>home>back

By doing this it will give you option to skip phone configuration.
[Sprint LG G3] Rezcor:
My lg stylo 3 wont go past configuring your phone screen after hard reset.

---------- Post added at 04:49 AM ---------- Previous post was at 04:37 AM ----------

There was nothing there that could help me. Please do help me with my problem. I just bought the phone and did a lot of work on it. Replaced digitizer and lcd. I hard reset it to erase my friends accounts and info cause he didn't want them on there if I had the phone. I did but now it goes past WiFi page but won't go past "configuring your phone" screen. I was even patient and waited an hour and a half almost 2 hours. Please help.
[General Questions and Answers] EzRaff:
Is there any android apps that able to touch screen through keyboard? In addition you can freely set the button position everywhere on your screen. Here's the photo I uploaded, as you can see he using keyboard to play game in his iPad...
[HTC Inspire 4G] QA Bot:
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