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[SOLVED] HELP! Xperia T does not boot after JB update

I updated my Sony Xperia T to 4.1.2 a few hours ago via PC Companion 2.1. Everything was good until I restarted my phone and it got stuck in the screen with white triangle and blue bar (after the Sony logo). I waited but nothing happens.
I've tried to force restart using power button + volume up (switching off using the power button alone doesn't respond) several times but it still get stuck in the same screen. I was able to repair it using PC companion and SEUS (both were successful) but when I turned on the phone the problem still persists. Restarted several times but to no avail. I cannot use my phone right now.
What seems to be the problem?
My phone is less than a week old, unlocked, stock and not rooted. I will try to flash 4.0.4 back using flashtool coz it was working fine before the JB update.

gabzki said:
I updated my Sony Xperia T to 4.1.2 a few hours ago via PC Companion 2.1. Everything was good until I restarted my phone and it got stuck in the screen with white triangle and blue bar (after the Sony logo). I waited but nothing happens.
I've tried to force restart using power button + volume up (switching off using the power button alone doesn't respond) several times but it still get stuck in the same screen. I was able to repair it using PC companion and SEUS (both were successful) but when I turned on the phone the problem still persists. Restarted several times but to no avail. I cannot use my phone right now.
What seems to be the problem?
My phone is less than a week old, unlocked, stock and not rooted. I will try to flash 4.0.4 back using flashtool coz it was working fine before the JB update.
Click to expand...
Click to collapse
Update: I flashed .233 using flashtool but still the same. Is my phone bricked?

gabzki said:
Update: I flashed .233 using flashtool but still the same. Is my phone bricked?
Click to expand...
Click to collapse
I have read that this process can take some time, flash a rom and give it at least upto 45 minutes, if it is still not working maybe you have a more serious problem.

Re: [Q] HELP! Xperia T does not boot after JB update
Flash a 303 firmware in flashtool instead of pc companion it never gets stuck for me weird some people have these problems
Sent from my LT30p using xda premium

Any news on that? i have exactly the same problem after flashing with PCCompanion.

Re: [Q] HELP! Xperia T does not boot after JB update
segataj said:
Any news on that? i have exactly the same problem after flashing with PCCompanion.
Click to expand...
Click to collapse
Just leave it be, plugged to the charger. I've heard of cases were it too about 3 hours to compete
Did I help? Please press the thanks button
Sent from my Xperia T (LT30P) using XDA premium

Re: [Q] HELP! Xperia T does not boot after JB update
I had this before, when going from 303 to 195.
Flash back the exact last full firmware you had prior to jb, if it was custom use the ftf the Rom is based on, it should boot, reset, then do the update again.
It took 35 mins to complete, I thought it was dead, once you get that screen, do not interrupt it or it can't complete and you need to start again.
Sent from my LT30p using xda app-developers app

OK, I was able to fix it and replicate it once but there's no certainty that it will not happen again once I restart the phone.
Here's what I did...
Since .233 did not work, I tried flashing the older firmware which is .303 - It worked!
I tried flashing .233 again to test if it has something to do with the firmware but it flashed without any problems!
I checked with PC companion to update to 4.1.2 but no update is available (since I used the UK firmware) so I flashed using the ftf file (.489) found here - it successfully flashed to 4.1.2!
HOWEVER, when the phone restarted (after inserting the sim card) and that's when the problem happened again! It stuck on the same screen. That's how I first encountered the problem earlier - the first reboot after updating caused for the phone to get stuck to that screen with white triangle and blue bar.
So I repeated the same process again (flashed .303 but skipped .233) then flashed .489 successfully but I DECIDED NOT TO RESTART THE PHONE this time. I'm not an expert so I don't know what's the cause of this??
My phone is working fine right now. Probably I will try to reboot the phone after 3 days to see if the issue comes back again.

segataj said:
Any news on that? i have exactly the same problem after flashing with PCCompanion.
Click to expand...
Click to collapse
Did the problem occur right after you updated? Or when you rebooted the phone for the first time after the update?
Mine was ok whether I updated via PC Companion or flashtool - the problem only happened when I restarted the phone for the first time after the update. So I tried not to reboot the phone on my third attempt. It's working fine now on 4.1.2. (as long as i don't restart it probably).
You can try the process I explained above and let us know!

gabzki said:
Did the problem occur right after you updated? Or when you rebooted the phone for the first time after the update?
Mine was ok whether I updated via PC Companion or flashtool - the problem only happened when I restarted the phone for the first time after the update. So I tried not to reboot the phone on my third attempt. It's working fine now on 4.1.2. (as long as i don't restart it probably).
You can try the process I explained above and let us know!
Click to expand...
Click to collapse
I've the same problem: https://www.dropbox.com/s/inagohwprijvc31/2013-02-02 10.27.02.jpg
I don't want void warranty... what can I do?

The solution for white triangle is, like DooMLoRD said, formating internal storage

dkownacki said:
The solution for white triangle is, like DooMLoRD said, formating internal storage
Click to expand...
Click to collapse
When more accurate to format the internal card?
Give me step by step if you think you know the cause of the problem.
Thank you in advance.

Fix to get JB Running
I had the exact same problem, a white triangle after flashing the JB update.
Here's how I solved it:
1. Flash a .303 stock firmware
2. Turn on your phone without Sim card and without MicroSD
3. Complete the Setup Guide (just pass the 7 steps).
4. Get Ready to flash the JB update (.489 I think)
5. EXCLUDE BASEBAND BEFORE FLASHING IT
6. It should work now (is working perfectly on my Xperia T since yesterday)
If this helps you, hit the thanks button, I'm trying to build a reputation here

Samper27 said:
I had the exact same problem, a white triangle after flashing the JB update.
Here's how I solved it:
1. Flash a .303 stock firmware
2. Turn on your phone without Sim card and without MicroSD
3. Complete the Setup Guide (just pass the 7 steps).
4. Get Ready to flash the JB update (.489 I think)
5. EXCLUDE BASEBAND BEFORE FLASHING IT
6. It should work now (is working perfectly on my Xperia T since yesterday)
If this helps you, hit the thanks button, I'm trying to build a reputation here
Click to expand...
Click to collapse
I mentioned in my process above that I will wait for 3 days before restarting the phone but I did it anyway to test your process. It didn't work for me.
I followed ALL the steps but after the phone restarted (when sim card was inserted) it got stuck on the same screen again. Have you tried rebooting your phone?
Looks like I'm gonna stay with .233 for now until this gets resolved.

dkownacki said:
The solution for white triangle is, like DooMLoRD said, formating internal storage
Click to expand...
Click to collapse
How do we do that in JB?
I noticed that after I flashed the .303 firmware the phone asks that internal storage be formatted (there's a notification in the notification bar). So I did that. But after updating to 4.1.2 the problem repeats again after the first reboot (stuck in the screen with white triangle).

Sounds like my problem has been solved. :good:
I repeated the process by Samper27 (except that I didn't remove the sim card; I don't have an sd card).
After updating to 4.1.2 I cleared the internal storage via the settings and performed a factory data reset - my phone restarted without any problems. I could switch it on and off now without getting stuck in that screen.

Great!
gabzki said:
Sounds like my problem has been solved. :good:
I repeated the process by Samper27 (except that I didn't remove the sim card; I don't have an sd card).
After updating to 4.1.2 I cleared the internal storage via the settings and performed a factory data reset - my phone restarted with any problems. I could switch it on and off now without getting stuck in that screen.
Click to expand...
Click to collapse
Glad to hear that! I don't know the change with the SIM Card, for my it worked like that and I have turned off and on several times. After doing that I lost my APN configuration but a quick google search and BAM, everything working smooth and battery life is a little better than before.
You should update the post to let everyone know that the problem is solved
If this helps you, hit the thanks button, I'm trying to build a reputation here

Samper27 said:
Glad to hear that! I don't know the change with the SIM Card, for my it worked like that and I have turned off and on several times. After doing that I lost my APN configuration but a quick google search and BAM, everything working smooth and battery life is a little better than before.
You should update the post to let everyone know that the problem is solved
If this helps you, hit the thanks button, I'm trying to build a reputation here
Click to expand...
Click to collapse
Yup, I just updated the thread title.

gabzki said:
Sounds like my problem has been solved. :good:
I repeated the process by Samper27 (except that I didn't remove the sim card; I don't have an sd card).
After updating to 4.1.2 I cleared the internal storage via the settings and performed a factory data reset - my phone restarted without any problems. I could switch it on and off now without getting stuck in that screen.
Click to expand...
Click to collapse
I have the same problem with this white triangle. The only firmware where the phone starts is .303. All other firmware doesn' start anymore.
I tried the process by Samper27, but it doesn't work for me. Could you please tell me which firmware of .303 and JB 4.1.2 you used? And what do you mean with factory data reset (Hold down the power button and volume up for 10 sec?)
Thanks

Even I gotta same problem. But my phone's screen is now blank, no LED no warning Triangles

[V - LT25i] Phone doesn't boot with SIM card

As the title says, the phone doesn't complete a boot up if a sim card is installed. It does work perfectly if I remove the SIM, but without it it just reboots at random times.
Tried 3 different stock from dogsly's post, and also done Update Service a couple of times.
It was rooted and unlocked, but I got a lot of reboots at random times, so I restored it to stock (+relocked). And now it won't boot successfully at all.
Any idea as to how to fix this, or how to figure out what's wrong?

sgtcyrex said:
As the title says, the phone doesn't complete a boot up if a sim card is installed. It does work perfectly if I remove the SIM, but without it it just reboots at random times.
Tried 3 different stock from dogsly's post, and also done Update Service a couple of times.
It was rooted and unlocked, but I got a lot of reboots at random times, so I restored it to stock (+relocked). And now it won't boot successfully at all.
Any idea as to how to fix this, or how to figure out what's wrong?
Click to expand...
Click to collapse
If you have relocked then try PCCompanion

gregbradley said:
If you have relocked then try PCCompanion
Click to expand...
Click to collapse
Tried that aswell without any luck. it still reboots when the sim is in. It doesnt even complete the bootup, just random times at the bootanimation.

sgtcyrex said:
Tried that aswell without any luck. it still reboots when the sim is in. It doesnt even complete the bootup, just random times at the bootanimation.
Click to expand...
Click to collapse
Then you have a problem
try flashing a stock ftf in flashtool and post the put put here

gregbradley said:
Then you have a problem
try flashing a stock ftf in flashtool and post the put put here
Click to expand...
Click to collapse
Funny thing is, if I enable usb debugging, and start a logcat when booting it up, it doesnt reboot. Everything works fine then.
But as soon as I try starting it not connected to the computer, it reboots.
Will flash a stock ftf. Will my own backup (vanilla 490, that was backed up long before the fubar started.
http://pastebin.com/L0Vr1BWc flashed without errors. reboots as soon as it gets to the start screen. first boot.

Freezes!!!

When I'm in stock rom there was a problem on my s3 there was a random freezes....when I boot up my phone it works fine but if after few seconds it freezes up I can touch any button cause it won't have any effect after booting up again succesfully it froze again then boot up again and after several seconds freeze again how to fix this problem

help please
jd23xny said:
When I'm in stock rom there was a problem on my s3 there was a random freezes....when I boot up my phone it works fine but if after few seconds it freezes up I can touch any button cause it won't have any effect after booting up again succesfully it froze again then boot up again and after several seconds freeze again how to fix this problem
Click to expand...
Click to collapse
Help please

do a factory reset...maybe you have an app crashes and freezes your phone....enter recovery and select wipe data and wipe cache also...
if this doesn't work...flash with odin original firmware....
with either of those 2 methods you won't loose warranty....try factory reset and let us know how it is...if is not working i will give a full tutorial how to flash stock and where to get it(if you don't know).

jd23xny said:
When I'm in stock rom there was a problem on my s3 there was a random freezes....when I boot up my phone it works fine but if after few seconds it freezes up I can touch any button cause it won't have any effect after booting up again succesfully it froze again then boot up again and after several seconds freeze again how to fix this problem
Click to expand...
Click to collapse
Do you have the Knox bootloader?
Also are you running a custom kernel?

[Q] Turbo Stuck on Android Screen

So I flashed but now my phone just boots to Android Screen - I am a Novice in this area - how can I restore my phone to factory or getting back to working condition

bturkel said:
So I flashed but now my phone just boots to Android Screen - I am a Novice in this area - how can I restore my phone to factory or getting back to working condition
Click to expand...
Click to collapse
Likely your flash was interrupted. Try flashing again and make sure the progress gets all the way through. My last time took the attempts to get a clean flash. Had to keep it in the foreground and not do anything else on my computer.

rgerrans said:
Likely your flash was interrupted. Try flashing again and make sure the progress gets all the way through. My last time took the attempts to get a clean flash. Had to keep it in the foreground and not do anything else on my computer.
Click to expand...
Click to collapse
Also, make sure you have the lastest mofo (version 0.0.2).

So I tried to flash the hotspot rooted image also the just plain rooted image. Which image do you suggest I use? Yes my first flash got interrupted. So are you saying that since I get to the white android screen that's a good sign?

bturkel said:
So I tried to flash the hotspot rooted image also the just plain rooted image. Which image do you suggest I use? Yes my first flash got interrupted. So are you saying that since I get to the white android screen that's a good sign?
Click to expand...
Click to collapse
Shouldn't matter but I'd stick with the original root image. Android logo isn't a good sign you are just stuck in a bootloop. If you can't get the regular rooted image flashed then you can go here for rsd plus stock, but I'd only do that as last resort since good chance of loosing all your data - http://forum.xda-developers.com/droid-turbo/development/quark-stock-firmware-moto-maxx-droid-t3063470
If it still won't flash the root image, you might want to hit the Mofo Thread and ask for help since a few others are having similar issues of not being able to get 100% through a flash - http://forum.xda-developers.com/general/paid-software/mofo-root-turbo-t3064404. They seemed to have identified issues if you installed more then one usb driver and/or are using a usb 3.0 port.

All good now - lost data but wiped phone then flashed - it work finally

hi every body, i have the same issue, i decide to udpate my phone to lollipop and everything was working fine except for one error that was doing my phone every time i use settings, and i decide to wipe the cache under recovery, when i tried to do it, the phone get stuck in erasing cache and then after some minutes here i turn off and on again the phone and make the same procedure and this time the wipe was very fast and then i restart my phone and here is the problem now, it get stuck in android screen and is not coming back from here, i tried to make a factory reset and nothing happens it is still on android screen and i dont know what else i can do, my bootloader is locked.
any ideas?

bturkel said:
All good now - lost data but wiped phone then flashed - it work finally
Click to expand...
Click to collapse
Hey how did you fix it? Im stuck on the moto logo and have no idea how to fix it. I have tried everything! Thanks in advance.

HTC one m7 keeps restarting to first htc white screen

Can someone please help. I have searched on here to find a solution for htc one continuously restarts to htc white screen. Powered by android in black writing. I have tried many things like holding down and power to get to fast boot screen but phone will just keep turning off and on again. holding it into the light while holding power button. no success.
It was working fine one one day then went to look at my phone and it was wanting to turn on and off, over and over again utill it went flat.

that's odd.
try pressing the power button and holding it for 8-10 seconds. If your phone powers down try to get to the bootloader; press and hold the vol down key and then press the power button and hold both buttons down for 5-8 seconds.
What ROM are you on? Custom ROM? Stock ROM? If stock, what version of android you on? Stock sense 4.x has a fastboot option and you need to disable it before you can boot into the bootloader.

Hi again.
I have tried what you have said with no luck. The restarts are getting more frequent and annoying. what I can get to is the bootloader then into team win recovery, and have tried wiping cache. but even this keeps restarting from here.
The sense version i could not tell you as I cant even get into the phone. but here is the downloaded software that is installed. OTA_M7_UL_L50_SENSE60_MR_Optus_AU_7.21.980.22-7.21.980.5_release_432037.
It is rooted and s off.
If possible at all I would like to be able to continue using software updates which I havent been able to previously do since installing this version.
Thanks again for your reply.

howelldog said:
Hi again.
I have tried what you have said with no luck. The restarts are getting more frequent and annoying. what I can get to is the bootloader then into team win recovery, and have tried wiping cache. but even this keeps restarting from here.
The sense version i could not tell you as I cant even get into the phone. but here is the downloaded software that is installed. OTA_M7_UL_L50_SENSE60_MR_Optus_AU_7.21.980.22-7.21.980.5_release_432037.
It is rooted and s off.
If possible at all I would like to be able to continue using software updates which I havent been able to previously do since installing this version.
Thanks again for your reply.
Click to expand...
Click to collapse
reflash the RUU that you have flashed back in November. If the problem still persist after that, its an hardware problem.

Maybe you have problems
With IMEI
Sent from my HTC M8 using Tapatalk

alray said:
reflash the RUU that you have flashed back in November. If the problem still persist after that, its an hardware problem.
Click to expand...
Click to collapse
i would flash the ruu, only my phone wont even allow fast boot. Is it safe to say that my HTC is Cactus?

howelldog said:
i would flash the ruu, only my phone wont even allow fast boot. Is it safe to say that my HTC is Cactus?
Click to expand...
Click to collapse
Well if you can't even boot in bootloader mode, there's not much you can do...
Sent from my HTC One using XDA Labs