Develop Bugs

[Q] Xperia Arc not booting after update OTA

I have brought xperia arc LT15i , two month ago.
i have unlocked the bootloader of LT15i.
Then update my Xperia arc LT15i from my cell OTA (OVER THE AIR ) only not from computer after that is not booting and it has been freeze or death.
I have shown my cell to service center also, and they also not finding any solution for that. and they r telling that your cell is not in warranty ok after unlocking the bootloder.
thy have also flash my cell then also cell is not booting up.
what is the solution..........
ok i understand that not in warranty BY UNLOCK THE BOOT-LOADER.
But Sony Ericsson people should provide me some solution for that.
IS IT POSSIBLE THAT MY CELL ROM MEMORY GOT CORRUPTED if ye the how to fix that thing or give me some alternative option.
plz plz plz any one can help me with my problem. will be very thankful.

here you go this will fix it http://forum.xda-developers.com/showthread.php?t=1126358
the update bricks the arc when you have a unlocked bootloader, follow the guide in the link i posted and when you fix your phone dont do any more updates until sony have a solution for it

[Q] Help needed to update Xperia Ion LT28H

I am trying to update my xperia ion to version 3.7 from 2.68. But its not happening. I tried with pc companion as well as OTA. Both say that phone has the latest version of firmware. I tried to perform repair via pc companion but it re-installed same version of firmware 2.68. Also my phone heats up quickly while browsing internet on 3G and battery gets drained quickly.
I checked with Sony service station and they are ready to replace my phone as i am facing heating and battery issue. But before replacing the phone i would like to check if issue has been solved in firmware version 3.7. I am concerned about flashing phone directly as it might void the warranty.
Any help on this issue would be appreciated.

AW: [Q] Help needed to update Xperia Ion LT28H
Unlocking bootloader may void warrenty. For flashing Sonys stock rom u dont need to unlock.. Just flash with flashtool. But before, u could try to update with Sony update Service.
Sent from my jellybeaned Xperia Ion

w3nZ said:
Unlocking bootloader may void warrenty. For flashing Sonys stock rom u dont need to unlock.. Just flash with flashtool. But before, u could try to update with Sony update Service.
Sent from my jellybeaned Xperia Ion
Click to expand...
Click to collapse
Sony update service also says that my phone already has the updated version of firmware.

Rupeshgw said:
Sony update service also says that my phone already has the updated version of firmware.
Click to expand...
Click to collapse
Maybe change the SI number to different region?
Sent from my LT28h using xda premium

My Xperia S bricked. What can I do now?

Hi,
I was on official JB .200 and my phone was not rooted and bootloader locked. I want to downgrade to ICS but now it seems got stuck at Sony and Xperia logo, keep rebooting.
http://forum.xda-developers.com/showthread.php?t=1997030
I followed the guide in this link and used the LT26i_6.1.A.2.55_SG Generic (1257-6921).ftf from the link http://ni.0a0.in/files/3432_kznsa/LT26i_6.1.A.2.55_SG Generic (1257-6921).zip and flashed without wipe user data. All procedure seems fine without problem, no error reported. I'm on win7 64bit and used FlashTool64.
Now Sony PC Companion can't detect my phone again. Flashtool keep reports Device disconnected and Device connected with USB debugging off..... can't flash it again via flashtool.
What can I do now? Send it back to Sony?
P.S. Problem solved.... mod please close this thread.
http://forum.xda-developers.com/showthread.php?t=1849170
I followed this guide and manage to get in green led and allowed to flash with flashtool again. This time I flash the LT26i_6.1.A.2.55_SG Generic (1257-6921).ftf with user data wipe and the phone now boot up successfully. Gonna unlock BL and root/recovery and flash JB .200/.211 later.

help identify my xperia

A friend of mine brought an xperia phone to me, I decided to help him upgrade it. The label behind has lt18i written on it, so I used the ftf for lt18i with flash tool to upgrade it. It all went well, but phone has refused to go pass the xperia boot screen, I even downgraded back to gb and it won't go pass the Sony Ericsson screen. I just saw something strange on the phone, it has an external antena between the usb port and volume control buttons. Is this the xperia arc s? And what firmware should i use to flash it

indigold said:
A friend of mine brought an xperia phone to me, I decided to help him upgrade it. The label behind has lt18i written on it, so I used the ftf for lt18i with flash tool to upgrade it. It all went well, but phone has refused to go pass the xperia boot screen, I even downgraded back to gb and it won't go pass the Sony Ericsson screen. I just saw something strange on the phone, it has an external antena between the usb port and volume control buttons. Is this the xperia arc s? And what firmware should i use to flash it
Click to expand...
Click to collapse
Arc and Arc s both will work with each others rom
try flashing again

ManthanRB said:
Arc and Arc s both will work with each others rom
try flashing again
Click to expand...
Click to collapse
Thanks for replying. I identified it myself. Phone is so-02c also know as the xperia acro for ntt docomo. I flashed with the firmware for so-02c and it works.

I recive a new update but not install

Hello,
I recive a new update from 30.1.B.33 to 30.1.B.55 but when download is complete have error!!! "cold not update":crying:

Do you have root or have you modified anything? Try updating with Sony's Xperia Companion

I have root and when unroot not change!!! The erorr dialog is "coud not verify" in phone.i try with pc companion!!!

Once rooted even if you unroot before installing updates it won't work system has been modified re-flash ftf via flashtool or try software repair via Sony pcc

[email protected] said:
Once rooted even if you unroot before installing updates it won't work system has been modified re-flash ftf via flashtool or try software repair via Sony pcc
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Click to collapse
when i unroot no diffrent!!!!with flashtool the phone is break and not way to solve and the phone off for ever!!!ex for english

peji0711 said:
when i unroot no diffrent!!!!with flashtool the phone is break and not way to solve and the phone off for ever!!!ex for english
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Click to collapse
so you unrooted and flash with flashtool,and the effect is not booting up?Is there any LED light when you try to turn the phone up???The problem flashing with Xperia Companion or PC Companion is that the phone has to be booted up.
EDIT:I saw somewhere here on xda forum that xperia companion might work if your bootloader is still locked.

Update your device with computer
AlgebraTheBard
owned devices:
Sony Xperia M5 dual (recent)
ZTE Nubia Z7 mini (backup)
Motorola RAZR XT910 custom

pren22 said:
so you unrooted and flash with flashtool,and the effect is not booting up?Is there any LED light when you try to turn the phone up???The problem flashing with Xperia Companion or PC Companion is that the phone has to be booted up.
EDIT:I saw somewhere here on xda forum that xperia companion might work if your bootloader is still locked.
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Click to collapse
i read that whoever sites with Flash Tools Change-ROM, the phone jailbroken and the other just yet. A piece of plastic