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Please read this if you considering unlocking the boot loader or rooting your phone.

Important information

Please note that you may void the warranty of your phone and/or any warranty from your operator if you unlock the boot loader. You should only unlock the boot loader of your phone if you are an advanced user with good knowledge of the technology and risks involved.

For more information go here http://unlockbootloader.sonymobile.com/

Please also note

The Sony Xperia support team will not be able provide any support, related to unlocking the boot loader or rooting your phone.

We also recommend you to read the below blogposts.

http://developer.sonymobile.com/wp/2011/03/29/unlocking-the-boot-loader-in-the-new-xperia%e2%84%a2-smartphones/

http://developer.sonymobile.com/wp/2011/04/14/option-to-unlock-the-boot-loader-now-available-for-advanced-developers/

http://developer.sonymobile.com/wp/2011/09/28/sony-ericsson-supports-independent-developers/

Best regards
Sony Xperia support team

Reply
Forum Legend
uliwooly-wooly
Posts: 7,347
Registered: ‎2011-09-08
Accepted Solution

How to "manually" update Xperia U 6.0.B.1.654 &/or debrand (other firmwares to come)

How to "manually" update Xperia U ST25i 6.0.B.1.654 &/or debrand (other firmwares to come) 

Xperia U - a powerful and personal Android smartphone Xperia U

PTRCB

HW VersionSW VersionRequest TypeDate Certified
A6.0.B.1.576ECOMay 17, 2012
A6.0.B.1.536ECOApr 27, 2012
A6.0.B.1.565ECOApr 27, 2012
A6.0.B.1.564ECOApr 27, 2012
A6.0.B.1.514VariantApr 27, 2012

as always thanx XDA forum

Rooting "might" void your warranty. I'm not responsible if anything happen to your phone (nothing should go wrong,, if something do go wrong, just repeat the whole process).

Forum Legend
uliwooly
Posts: 46,004
Registered: ‎2010-07-03

Re: How to "manually" update Xperia U 6.0.B.1.654 &/or debrand (other firmwares to come)

1st Backup everything

2nd follow the steps bellow to flash your phone (remember I'm not responsible if anything happen to your phone and this "might" void your warranty)

3th enjoy

it's useful to have

Sony Update Service (SUS)

http://www.sonymobile.com/gb/tools/update-service/

How to backup Xperias

http://talk.sonymobile.com/thread/36355

download FlashTool

http://forum.xda-developers.com/showthread.php?t=920746

or

http://androxyde.github.com/Flashtool/

and the ftf files

6.0.B.3.184
http://forum.xda-developers.com/showthread.php?t=1809047


6.0.B.3.162

http://forum.xda-developers.com/showthread.php?t=1740240

6.0.B.1.654

HERE


Install it and you will see  5 folders

                                   Custom

                                   Drivers

                                   Firmwares

                                   Loaders

                                   X10Flasher_lib


take the firmware to the  "Firmwares" folder

click on Falsh

Press Ok

it will ask you to connect your phone on Flashmode (turn off your phone, press and hold Volume Down, then connect the USB) press OK

This is an step by step guide

01.JPG02.JPG

03.JPG

04.JPG05.JPG06.JPG

"I'd rather be hated for who I am, than loved for who I am not." Kurt Cobain (1967-1994)

Forum Legend
uliwooly
Posts: 46,004
Registered: ‎2010-07-03

Re: How to "manually" update Xperia U 6.0.B.1.654 &/or debrand (other firmwares to come)

How to backup Xperias


http://talk.sonymobile.com/thread/36355

Pre-rooted ftf

HERE

From sony mobile developers

http://unlockbootloader.sonymobile.com/instructions

Warning! If you perform this step, you will unlock the boot loader. This may void your warranty and/or any warranty from your operator. If you still want to unlock the boot loader of your phone, enter fastboot.exe -i 0x0fce oem unlock 0xKEY, where KEY is the unlock boot loader key you got in the beginning of this instruction. The boot loader should now be successfully unlocked.

from Sony mobile

Warranty Document

http://www-support-downloads.sonymobile.com/common/warranty_phones_US_12.pdf

Nor does this warranty cover any

failure of the Product due to accident, software or hardware

modification or adjustment, acts of God or damage resulting

from liquid

Update:

For most issues/problems, unlocking the bootloader voids the warranty. Sony Mobile only honors the warranty if it is a known issue in that model/batch of phones or if it is an issue that clearly could not have been caused by flashing a different ROM. Because a new ROM can have a wide range of consequences (e.g., it can overheat the battery or change the voltage, which can damage other components), that basically means that only a small subset of issues are still covered by the warranty. Therefore, even when the phone is in warranty, the service center usually has to do a very costly board swap in order to get the phone back to its original state before it can perform any repair. The end-user has to pay for that part of the repair.

We are proud of providing the unlock feature to the developer community. Previously, there was a large risk of bricking the phone when unlocking with third party software. Sony Mobile’s solution remove’s that risk. When we initially provided the unlock feature, it was presumed that only highly skilled developers and super-users would take advantage of it. From blogs and discussion boards, it was clear that the community understood the risks and that unlocking largely voided the warranty. It appears that less sophisticated users (despite all our warnings) might be using the feature, and are now surprised by the consequences.


http://www.phonearena.com/news/Sony-explains-why-using-its-official-bootloader-unlock-tool-voids-you...

"I'd rather be hated for who I am, than loved for who I am not." Kurt Cobain (1967-1994)

Forum Legend
uliwooly
Posts: 46,004
Registered: ‎2010-07-03

Re: How to "manually" update Xperia U 6.0.B.1.654 &/or debrand (other firmwares to come)

How to backup Xperias


http://talk.sonymobile.com/thread/36355


How to use Flashtool

http://www.youtube.com/watch?v=i9VnDu60smE


http://www.youtube.com/watch?v=yg2dYQO59CQ


"I'd rather be hated for who I am, than loved for who I am not." Kurt Cobain (1967-1994)

Forum Legend
uliwooly
Posts: 46,004
Registered: ‎2010-07-03

Re: How to "manually" update Xperia U 6.0.B.1.654 &/or debrand (other firmwares to come)

How to create a backup of your original firmware

  1. you must have SUS
  2. run SUS and repair your phone
  3. go to C:\Program Files\Sony Ericcson\Update Service\db\13740270\blob_fs\
  4. Copy the 2 largest files you'll find there to C:\Flashtool\anynameyoulabeled it as
  5. Run FlashTool
  6. Click Advanced > Decrypt Files
  7. Source folder : C:\Flashtool\anynameyoulabeled it as
  8. From Files, select all (Click & Ctrl + A) and click -> to move the 2 files to Files to convert
  9. Click OK
  10. Wait patiently till it finishes...
  11. From Folder list, select all (Click & Ctrl + A) and click -> to move the 2 files to Firmware content
  12. If it is ICS, tick the Disable Final Verification Check
  13. 13) On Device write the model [ex. Xperia Neo V (MT11i)], on Version write the firmware version and/or the Android version [ex. 4.1.A.0.562 (ICS_4.0.3)], on Branding write the region and your name if you wish.
  14. Click OK
  15. On Device Selection choose the device it is for (ex. MT11i)
  16. Wait very patiently...
  17. When it finishes the .ftf file is located on C:\Flashtool\firmwares

Thanx leajian

"I'd rather be hated for who I am, than loved for who I am not." Kurt Cobain (1967-1994)

Forum Legend
uliwooly
Posts: 46,004
Registered: ‎2010-07-03

Re: How to "manually" update Xperia U 6.0.B.1.654 &/or debrand (other firmwares to come)

New Update Build Number

6.0.B.3.184

"I'd rather be hated for who I am, than loved for who I am not." Kurt Cobain (1967-1994)

One time poster
Pigz
Posts: 9
Registered: ‎2012-08-08

Re: How to "manually" update Xperia U 6.0.B.1.654 &/or debrand (other firmwares to come)

1. its a pre-rooted .img NOT a .ftf file as said on the page

2. This is useless to those of us with locked bootloaders

thanks anyway but untill some actuall devs actually start working on this phone and that wont be untill ICS comes out which could be anytime, then for us with locked bootloaders this is useless APART from the debranding bit

Forum Legend
uliwooly
Posts: 46,004
Registered: ‎2010-07-03

Re: How to "manually" update Xperia U 6.0.B.1.654 &/or debrand (other firmwares to come)

if you say so

"I'd rather be hated for who I am, than loved for who I am not." Kurt Cobain (1967-1994)

One time poster
Pigz
Posts: 9
Registered: ‎2012-08-08

Re: How to "manually" update Xperia U 6.0.B.1.654 &/or debrand (other firmwares to come)

yep anyone with any sense knows that lol

One time poster
MxxN
Posts: 5
Registered: ‎2012-09-16

Re: How to "manually" update Xperia U 6.0.B.1.654 &/or debrand (other firmwares to come)

i followed the steps but the flashtool shows a flash error could you help me ..??

i downloaded the 6.0.B.3.184 tft file and attempted the flash with the latest version of flashtool an ended up in flash error... am i doing something wrong?