[Video Guide] Xperia U --- How to unlock and Root

melchiar · Jan 27, 2013

Like this then?

Min3r said:
Hey guys,

which firmware are you on ? If you're using anything other than B.1.10, then you need to flash the B.1.10 kernel (just the kernel) and then use Root with Bin4ry. After the reboots, you'll have root Then, flash back the kernel you were using and it will work fine

Also, if it still doesnt work, try Bin4ry v12 or v9. Both worked fine for me always

Is this the right way then?

1. Flash my st25i via Flashtool to B.1.10 (from sony developers site: "Open source archive for build 6.1.1.B.1.10" It's the first result after searching B.1.10. It's a .tar file. Is this the one to use? I can't post links just yet..)

2. Root with Bin4ry

3. Update phone to B.1.54 via PC COMPANION (since bootloader is still locked, I assume updating this way will work.. please confirm..)

4. Result => B.1.54 with root.

Is this correct please?

Thanks

Min3r · Jan 27, 2013

Nope dude.. There's an FTF for B.1.10 f/w which includes kernel and rom and also one with just the kernel. Download either one and flash just the Kernel. If you downlaod the full f/w, just deselect all the Wipe options on top right side and select all Exclude options on bottom right except the Kernel part and you get the B.1.10 kernel

Then you root it, and then same procedure I described in previous paragraph, you flash the B.1.54 kernel (you can use the FTF you already have) Then you're rooted and done

PCC will remove the root again so you cant use that method

melchiar · Jan 27, 2013

Min3r said:
Nope dude.. There's an FTF for B.1.10 f/w which includes kernel and rom and also one with just the kernel. Download either one and flash just the Kernel. If you downlaod the full f/w, just deselect all the Wipe options on top right side and select all Exclude options on bottom right except the Kernel part and you get the B.1.10 kernel

Then you root it, and then same procedure I described in previous paragraph, you flash the B.1.54 kernel (you can use the FTF you already have) Then you're rooted and done PCC will remove the root again so you cant use that method

Do you mean the one from topic "[ICS][SXU][ST25i] Firmware 6.1.1.B.1.10"..?

Can you please point out where to download a clean versoin of the 6.1.1.B.1.10 kernel. Can I download it from the Sony developer page?

Thank already.. (yes I'm a noob, even still I have red a lot of topics about this...)

Min3r · Jan 27, 2013

Thats the FTF of the B.1.10 firmware

That will serve for this purpose

melchiar · Jan 27, 2013

Min3r said:
Thats the FTF of the B.1.10 firmware That will serve for this purpose

Min3r thanks for the info. As I was looking in other topics too, I saw you helped out a lot of people.

That being said. Here's a status update:

I flashed B1.10. kernel with Flashtool. After that my phone rebooted but I couldn't see anything. It responed with an amazing amount of lag. I couldn't even enter my pin code, so I just rooted it with Bin4ry. That worked fine.

After that I flashed with Flashtool back to B.1.54 (which I extraced from my phone in the beginning..)

Result: No ROOT..

EDIT: It's rooted now. When flashing back to B.1.54. I just had to flash kernel.. Ridiculously obvious afterwards..

melchiar · Jan 27, 2013

double post..

Delete please

Min3r · Jan 28, 2013

melchiar said:
Min3r thanks for the info. As I was looking in other topics too, I saw you helped out a lot of people.

That being said. Here's a status update:

I flashed B1.10. kernel with Flashtool. After that my phone rebooted but I couldn't see anything. It responed with an amazing amount of lag. I couldn't even enter my pin code, so I just rooted it with Bin4ry. That worked fine.

After that I flashed with Flashtool back to B.1.54 (which I extraced from my phone in the beginning..)

Result: No ROOT..

EDIT: It's rooted now. When flashing back to B.1.54. I just had to flash kernel.. Ridiculously obvious afterwards..

Hey mate, glad to know you got it working

And yes, I try to help out where i can

Thanks for noticing

Flashtool and rooting are quite easy when you understand. I remember thinking how stupid I was when I thought things were so complicated compared to old HTC way and all lol

Also FTF is used exclusively for Flashtool which is a tool by Bin4ry & Androxyde for Xperia phones, so you wont find FTF on Sony sites

Hope that clears things up

Cheers

zedsharma · Feb 4, 2013

xperia u rooting problem help !

hey i tried rooting my xperia u ......ics............ and its not rooting with binary
and it says deamon started sucessfully
and after dat i waited for 1 hour bt nothing happens

thanks in advance.........

kaioerg · Feb 4, 2013

Min3r, do you know if the files of this topic (http://xdaforums.com/showthread.php?t=2028139) are working? I really want to root my st25a, but my version is .54 :/
If I use those .ftf I will root my phone? I'm too scared to brick it.

thanks

Anthrax · Feb 5, 2013

kaioerg said:
Min3r, do you know if the files of this topic (http://xdaforums.com/showthread.php?t=2028139) are working? I really want to root my st25a, but my version is .54 :/
If I use those .ftf I will root my phone? I'm too scared to brick it.

thanks

Just this method will help you to root your fone........

ROOT as the following :

1. Flash ics 6.1.1.b.1.10 Kernel
2. Root with flashtools
3. Flash ics 6.1.1.b.1.54 Kernel

for the kernels visit the links in that thread....
it wont hard brick until you do something stupid without knowing what you are doing...

christheo00 · Feb 5, 2013

thx it's work

Anthrax · Feb 6, 2013

ultrajam said:
doesn't work with me

what problem you face......
plz describe the method and steps you used.......

J-Santos · Feb 6, 2013

My st25i say that the status for root is no.
Can I just flash the kernel to get root access like U mentioned?

1. Flash ics 6.1.1.b.1.10 Kernel
2. Root with flashtools
3. Flash ics 6.1.1.b.1.54 Kernel

I am on version 6.1.1.b.1.54

Other thing...I have send to sony my IMEI and they gave me the unlock code for the bootloader despite in my phone says like I told you before that "root access not allowed" can I use this code risk free?

I just want the root access I don't mind the locked bootloader but I think I cant have root access if the bootloader is locked correct? I have tried several methods and I am confused, can you please, explain?

What do you recommend the best thing to do?

Thank you in advance.

Sorry for the bad English I hope you understand what I mean.

Anthrax · Feb 7, 2013

J-Santos said:
My st25i say that the status for root is no.
Can I just flash the kernel to get root access like U mentioned?

1. Flash ics 6.1.1.b.1.10 Kernel
2. Root with flashtools
3. Flash ics 6.1.1.b.1.54 Kernel

I am on version 6.1.1.b.1.54

Other thing...I have send to sony my IMEI and they gave me the unlock code for the bootloader despite in my phone says like I told you before that "root access not allowed" can I use this code risk free?

I just want the root access I don't mind the locked bootloader but I think I cant have root access if the bootloader is locked correct? I have tried several methods and I am confused, can you please, explain?

What do you recommend the best thing to do?

Thank you in advance.

Sorry for the bad English I hope you understand what I mean.

Locked bootloader or unlock bootloader has nothing to do with ROOTing.......
So if you BL is locked or not dosent matter.........

You are on .54 FW so use the steps which you mentioned and you will be rooted........
the Code which you received by sending you IMEI no is for unlocking bootloader........

aditya.inst · Feb 10, 2013

no need to have unlocked bootloader to root

J-Santos said:
My st25i say that the status for root is no.
Can I just flash the kernel to get root access like U mentioned?

1. Flash ics 6.1.1.b.1.10 Kernel
2. Root with flashtools
3. Flash ics 6.1.1.b.1.54 Kernel

I am on version 6.1.1.b.1.54

Other thing...I have send to sony my IMEI and they gave me the unlock code for the bootloader despite in my phone says like I told you before that "root access not allowed" can I use this code risk free?

I just want the root access I don't mind the locked bootloader but I think I cant have root access if the bootloader is locked correct? I have tried several methods and I am confused, can you please, explain?

What do you recommend the best thing to do?

Thank you in advance.

Sorry for the bad English I hope you understand what I mean.

yes u can but will need ICS with backup and restore application
download Flashtool and root with unlock icon

u can again permanently unroot too

Siilver · Feb 11, 2013

Getting frustrated

J-Santos said:
My st25i say that the status for root is no.
Can I just flash the kernel to get root access like U mentioned?

1. Flash ics 6.1.1.b.1.10 Kernel
2. Root with flashtools
3. Flash ics 6.1.1.b.1.54 Kernel

I am on version 6.1.1.b.1.54

Other thing...I have send to sony my IMEI and they gave me the unlock code for the bootloader despite in my phone says like I told you before that "root access not allowed" can I use this code risk free?

I just want the root access I don't mind the locked bootloader but I think I cant have root access if the bootloader is locked correct? I have tried several methods and I am confused, can you please, explain?

What do you recommend the best thing to do?

Thank you in advance.

Sorry for the bad English I hope you understand what I mean.

I can't do this! I tried to flash the .10 Kernel and my phone goes haywire (I can't even mark my PIN because the touch doesn't work)... I've spent so much time trying to root my XU and I got so much frustrated...I'm starting to give up.

Can someone, please, help me?

Anthrax · Feb 11, 2013

Siilver said:
I can't do this! I tried to flash the .10 Kernel and my phone goes haywire (I can't even mark my PIN because the touch doesn't work)... I've spent so much time trying to root my XU and I got so much frustrated...I'm starting to give up.

Can someone, please, help me?

What is the problem plz explain and provide details.........

Siilver · Feb 11, 2013

@nThR@xNine9 said:
What is the problem plz explain and provide details.........

I'm using the .54 sony rom. I saw a root guide that told me to flash the .10 kernel, so I did it...and after the kernel was flashed...my phone would brick. The touchscreen didn't work, and I couldn't root it trough the flashtool anyway. I tried other guides, but it allways came to the problem of not being able to flash the .10 kernel for the flashtool root to work.

I'm sorry if I can't explain myself better. But I'm not native english. Send me a PM if you need anymore info. Thank you so much.

Anthrax · Feb 11, 2013

Siilver said:
I'm using the .54 sony rom. I saw a root guide that told me to flash the .10 kernel, so I did it...and after the kernel was flashed...my phone would brick. The touchscreen didn't work, and I couldn't root it trough the flashtool anyway. I tried other guides, but it allways came to the problem of not being able to flash the .10 kernel for the flashtool root to work.

I'm sorry if I can't explain myself better. But I'm not native english. Send me a PM if you need anymore info. Thank you so much.

Are you able to use flashtool????????
can you flash any ftf file??????
if yes then download GB ftf for your fone and then flash it...... this will help you to get your touchscreen working most probably...... coz one person has tried it and this worked for him........

sachdev.rohan342 · Feb 15, 2013

Not working SXU latest firmware 6.1.1.B.1.54

this does not work with xperia u latest firmware!

[Video Guide] Xperia U --- How to unlock and Root

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