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

2nd February 2013, 03:53 AM   |  #1  
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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.
Last edited by gabzki; 3rd February 2013 at 02:50 AM.
2nd February 2013, 05:03 AM   |  #2  
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Quote:
Originally Posted by gabzki

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.

Update: I flashed .233 using flashtool but still the same. Is my phone bricked?
2nd February 2013, 05:14 AM   |  #3  
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Quote:
Originally Posted by gabzki

Update: I flashed .233 using flashtool but still the same. Is my phone bricked?

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.
2nd February 2013, 05:37 AM   |  #4  
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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

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2nd February 2013, 12:03 PM   |  #5  
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Any news on that? i have exactly the same problem after flashing with PCCompanion.
2nd February 2013, 12:17 PM   |  #6  
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Re: [Q] HELP! Xperia T does not boot after JB update
Quote:
Originally Posted by segataj

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

Just leave it be, plugged to the charger. I've heard of cases were it too about 3 hours to compete

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2nd February 2013, 12:19 PM   |  #7  
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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.

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2nd February 2013, 01:39 PM   |  #8  
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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.
Last edited by gabzki; 2nd February 2013 at 01:45 PM.
2nd February 2013, 01:57 PM   |  #9  
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Quote:
Originally Posted by segataj

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

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!
2nd February 2013, 03:38 PM   |  #10  
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Quote:
Originally Posted by gabzki

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!

I've the same problem: https://www.dropbox.com/s/inagohwpri...2010.27.02.jpg

I don't want void warranty... what can I do?
Last edited by c1-p8; 2nd February 2013 at 03:52 PM.

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