[TUTORIAL] Unlock bootloader, Rooting, Relocking bootloader Xperia U and SOLA

[shivam94]

Courtesy : Elwino Ramadhan @ Sony Xperia™ U and Sola [sT25 and MT27]  facebook group

###[unlock Bootloader]###

Download:

http://j.mp/xps_fastboot_pkg [fastboot package with usb drivers]

1. Confirm that it is possible to unlock the boot loader

    Open the dialler and enter *#*#7378423#*#* to access the service menu.

    Service info > Configuration > Rooting Status

    If Bootloader unlock allowed says Yes, then you can continue with the next step. If it says No, or if the status is missing, your device cannot be unlocked.

2. Unlocking Bootloader

    Get the IMEI code for ur device: type *#06# in phone dialer.

    Go to: http://unlockbootloader.sonymobile.com/ .

    Scroll to the bottom of the page and click "Continue". Finally you will get a "Create Unlock request" page, enter your IMEI (last digit needs to be removed), name and email address. You should now receive your unique unlock key, its displayed on screen, SAVE THIS KEY SAFELY.

 

    Extract fastboot_with_Android_USB_file.rar.

    Power off your phone and keeping the Volume Up button pressed connect the USB cable to PC this will trigger FASTBOOT mode(Blue) and windows will start driver installation,and point the driver install to that location (usb_driver) folder in fastboot folder.

    Hold SHIFT and right click on the background of the folder fastboot .Select 'Open command window here'. In the cmd windows type fastboot.exe -i 0x0fce getvar version . If a value is returned 0.5, it means the phone is correctly connected.

    Type fastboot.exe -i 0x0fce oem unlock 0xKEY  and replace KEY  with the key which you saved earlier.

    Your device should now be bootloader unlocked.

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###[Relock Bootloader]###

Download:

http://androxyde.github.com/Flashtool/ [FlashTool]

http://tiny.cc/Add-on_Device_ST25 [Flashtool Add-on Device ST25]

Relocking Bootloader 

    Extract Flashtool & install \Flashtool\drivers\Flashtool-drivers.exe

    Extract 'Flashtool Add-on Device ST25.rar' to folder Flashtool.

    Put Xperia_U_ST25i_Relock_Bootloader.ftf to \Flashtool\firmwares

 

    Run Flashtool, Click Flash(electric symbol). Click Flashmode then OK.

    Choose version --> Relock Bootloader  then OK.

    Power off your phone and keeping the Volume Down button pressed connect the USB cable to PC this will trigger Flashmode (Green).

    Your device should now be bootloader locked.

Note: Re Locking in XSOLA not yet available

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###[ROOT]### Xperia U

Download:

http://j.mp/xps_fastboot_pkg [fastboot package with usb drivers]

http://tiny.cc/ST25i_Pre-Rooted_IMG [Pre-Rooted system.img]

Note: To do this, you phone must unlocked bootloader

Rooting

    Extract fastboot_with_Android_USB_file.rar .

    Extract Sony_Xperia_U_ST25i_v2.3.7_Pre_Rooted.rar to \fastboot\Sony_Xperia_U_ST25i_v2.3.7_Pre_Rooted.img

    Power off your phone and keeping the Volume Up button pressed . Connect the USB cable to PC this will trigger FASTBOOT mode(Blue).   

    Hold SHIFT and right click on the background of the folder fastboot Select 'Open command window here'. In the cmd windows type fastboot flash system Sony_Xperia_U_ST25i_v2.3.7_Pre_Rooted.img

    Power ON your device

    Your device should now be ROOTED.

FOR XSOLA:

Requirements:

    stock Sony 6.0.B.1.564 FW

    bootloader unlocked

    working fastboot

Guide:

    Download the kernel.elf: http://d-h.st/aoY

    Place it to fastboot folder

    Power off your device and connect to PC with fastboot mode

    Enter following command "fastboot flash boot kernel.elf"

    Reboot

Source: http://forum.xda-developers.com/showthread.php?t=1527159

Source2: http://forum.xda-developers.com/showthread.php?t=1669906

Source3: http://forum.xda-developers.com/showthread.php?t=1688169

[shivam94]

FAQ :

1) I am unable to boot into FASTBOOT mode (i.e blue light) by pressing volume up button and then inserting the usb connected to computer.  How do I do it then ?

A) Most likely it is the problem pertaining to drivers .  Install PDANet for Android from here , then try to boot into fastboot mode.  It should work now

[navratn123]

good one yaar +1   

[shivam94]

good one yaar +1   

Thanks to the author, Elwino Ramadhan , for this.  I am just sharing it here for the benefit of gizmolorf android xperia u and sola users

[shashwat]

Does flashtool works for all xperia phones??

[navratn123]

Thanks to the author, Elwino Ramadhan , for this.  I am just sharing it here for the benefit of gizmolorf android xperia u and sola users

+1 for looking for this awesome....... tutorial...... and ramdhan, i'll find him internet..........

[shivam94]

Does flashtool works for all xperia phones??

Not pretty sure about it.  But yes it definitely works for Xperia P, U and Sola

[LRajesh555]

nice share shivam

[devilhunter47]

Nice share mate..+1:)

[shivam94]

nice share shivam

Nice share mate..+1:)

Thanks

[Edios]

Great work mate! \m/ +3

[chrisal1224]

can this work on xperia u's latest firmware update? 6.0.B.3184??? PLS reply... thank you so much!

[shivam94]

can this work on xperia u's latest firmware update? 6.0.B.3184??? PLS reply... thank you so much!

Welcome to Gizmolord and nice to see a Xperia U user here

The answer to your question is Yes ...  Tested by me on that firmware.

However , in any case you end up messing your phone (which shouldn't happen if instructions are clearly followed), then flash with your stock firmware.(See the tutorial above in first post)

Do let me know if you face any problems ..

[chrisal1224]

thank you so much for the warm welcome.. ! actually this is my first phone and i'm planning to root for the benefits I can get... and so far this forum is the most understandable for newbies like me... please keep in touch in case I got messed up... is this also possible after the ics update? thank you so much again!

[shivam94]

thank you so much for the warm welcome.. ! actually this is my first phone and i'm planning to root for the benefits I can get... and so far this forum is the most understandable for newbies like me... please keep in touch in case I got messed up... is this also possible after the ics update? thank you so much again!

Yes. Totally.  ICS update will most likely be available in the first week of September.  You can update to ICS after you relock your bootloader , flash your gingerbread stock firmware and use Sony erricson official updater to update to ICS.  However, you can also flash ICS through flash tool which I will clearly explain once ICS is released. .

[chrisal1224]

you mean sir after I unlock it., I must relock the bootloader again to root the phone.? you mention that in order to root it you must have a unlocked bootloader? so what I must do is unlock the phone's bootloader, root it, then relock it again? is that correct? why must I flash again that stock gingerbread firmware and where do I get it? sorry for such newbie questions sir. still a newborn in rooting.

[shivam94]

you mean sir after I unlock it., I must relock the bootloader again to root the phone.? you mention that in order to root it you must have a unlocked bootloader? so what I must do is unlock the phone's bootloader, root it, then relock it again? is that correct?

why must I flash again that stock gingerbread firmware and where do I get it?

sorry for such newbie questions sir. still a newborn in rooting.

First of all, please don't call me sir.  Shivam would be more appropriate way to call me

If you want to flash ics (which'll be released soon for xperia U ) then follow the steps below:

1)  In case you are using custom rom and kernel(for which you would have unlocked the bootloader),  then download the stock gingerbread firmware (first post of this thread).

2)  Use flash tool and flash the original gingerbread firmware for xperia U.

3) Then relock the bootloader (follow instructions on first post)

4) Then use xperia phone software updater on pc and update to ics

Hope I am clear enough.

Also Please make sure you don't double post on this thread...

[chrisal1224]

thanks for the guidance...gonna try rooting maybe after the ics update... thank you for the time.:-D

[chrisal1224]

First of all, please don't call me sir.  Shivam would be more appropriate way to call me

If you want to flash ics (which'll be released soon for xperia U ) then follow the steps below:

1)  In case you are using custom rom and kernel(for which you would have unlocked the bootloader),  then download the stock gingerbread firmware (first post of this thread).

2)  Use flash tool and flash the original gingerbread firmware for xperia U.

3) Then relock the bootloader (follow instructions on first post)

4) Then use xperia phone software updater on pc and update to ics

Hope I am clear enough.

Also Please make sure you don't double post on this thread...

tried it!  if i have the superuser application that means it is already rooted right? rooting is actually tension-giving man... sheeesh...please have a tutorial also how to flash ics via flashtool after the official update... thank you!!!

[devilhunter47]

tried it!  if i have the superuser application that means it is already rooted right? rooting is actually tension-giving man... sheeesh...please have a tutorial also how to flash ics via flashtool after the official update... thank you!!!

you got superuser means you are rooted..what tension mate??..rooting is just the basic lolz

[chrisal1224]

Got to get the hang out of it... Hehe

[shivam94]

Got to get the hang out of it... Hehe

You'll get used to this

[chrisal1224]

hi again... can u give me an idea how to flash .sin file format... because now i'm running the custom speed kernel and rom. And the only file format i can find for the stock kernel is .sin, not .img or .zip that ive already tried flashing... tnx!