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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

How can I root Xperia U on android 2.3.7?

SOLVED
Forum Legend
Message 11 of 26
4,558 Views
Message 11 of 26

Re: How can I root Xperia U on android 2.3.7?

damon I'm really really sorry man . i forgot that GB is not rootable, only ICS is using that toolkit

Why didn't you update to ICS ?

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One time poster
Message 12 of 26
1,603 Views
Message 12 of 26

Re: How can I root Xperia U on android 2.3.7?

i want to update to ics, following this tutorial - http://talk.sonymobile.com/thread/35239 (I think is the best) but is there a original stock firmware of GB, in case i want to downgrade back?

i want to backup the firmware (is 6.0.B.3.188, and is no present on the internet) but i don't now how, without root.

Forum Legend
Message 13 of 26
1,603 Views
Message 13 of 26

Re: How can I root Xperia U on android 2.3.7?

Yes my friend, check my guide and you'll find the links for xperia U gb

Under

Downgrading to/ installing/ flashing Gingerbread

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One time poster
Message 14 of 26
1,603 Views
Message 14 of 26

Re: How can I root Xperia U on android 2.3.7?

thank you. i will upgrade to ICS following your tutorial.

Forum Legend
Message 15 of 26
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Message 15 of 26

Re: How can I root Xperia U on android 2.3.7?

All the best buddy , keep me updated Slightly smiling Face

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One time poster
Message 16 of 26
1,603 Views
Message 16 of 26

Re: How can I root Xperia U on android 2.3.7?

i've upgraded but i have a big problem. my internet is not working. neither HSDPA or WiFi.

i turn on the phone, it connects to wifi, it founds updates, i click one of them and suddenly my internet connection is not working anymore.

Forum Legend
Message 17 of 26
1,603 Views
Message 17 of 26

Re: How can I root Xperia U on android 2.3.7?

damon Simply use PC Companion to update your phone. That should rectlfy all the problems you're having

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One time poster
Message 18 of 26
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Message 18 of 26

Re: How can I root Xperia U on android 2.3.7?

i've repaired with PC Companion and i still have this issue.

Forum Legend
Message 19 of 26
1,603 Views
Message 19 of 26

Re: How can I root Xperia U on android 2.3.7?

damon You repaired or you updated the software ?

You're on which software version right now ? ( Build number )

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Highlighted
One time poster
Message 20 of 26
1,603 Views
Message 20 of 26

Re: How can I root Xperia U on android 2.3.7?

no available update, so i've repaired. same build - 6.1.1.B.1.10