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How to update android version into Jelly Bean in Xperia U

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Shichiro
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Default How to update android version into Jelly Bean in Xperia U

Here's the details of my phone.

Model Number: ST25i
Android Version: 4.0.4 (Ice cream sandwich)
Baseband version: u8500-49020908
Kernel Version: 3.0.8+ BuildUser@BuildHost #1 SMP PREEMPT Mon Oct 15 14:57:07 2012
Build Number: 6.1.1.B.1.54

I'm newbie so I need a step by step tutorial. Including working download links etc.

If you still need something, feel free to post here in my thread or PM me boss.

I appreciate your help. Please!

Thanks!
 
bharathbondfire
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(Last edited by bharathbondfire; 12th January 2014 at 11:53 AM.)
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Quote:
Originally Posted by Shichiro View Post
Here's the details of my phone.

Model Number: ST25i
Android Version: 4.0.4 (Ice cream sandwich)
Baseband version: u8500-49020908
Kernel Version: 3.0.8+ BuildUser@BuildHost #1 SMP PREEMPT Mon Oct 15 14:57:07 2012
Build Number: 6.1.1.B.1.54

I'm newbie so I need a step by step tutorial. Including working download links etc.

If you still need something, feel free to post here in my thread or PM me boss.

I appreciate your help. Please!

Thanks!
1st thing u have unlock boot loader
And flash stock jb rom
Look at this form their is a complete guide
http://forum.xda-developers.com/show....php?t=2270027
 
Shichiro
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Quote:
Originally Posted by bharathbondfire View Post
1st thing u have unlock boot loader
And flash stock jb rom
Look at this form their is a complete guide
http://forum.xda-developers.com/show....php?t=2270027
I can't make that one work. After flashing kernel, it's not booting into the phone now. Just the logo and after that It's all black.

Any video on how to make that work?
Or can you teach me here? I don't really know if i'll extract it or not. That's why I need a step by step process

Thank you!
 
ChikeD
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Quote:
Originally Posted by Shichiro View Post
I can't make that one work. After flashing kernel, it's not booting into the phone now. Just the logo and after that It's all black.

Any video on how to make that work?
Or can you teach me here? I don't really know if i'll extract it or not. That's why I need a step by step process

Thank you!
There was a step before flashing the kernel, did you skip it?
 
Shichiro
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Quote:
Originally Posted by ChikeD View Post
There was a step before flashing the kernel, did you skip it?
The author said to "flash kernel"

Quote:
Instructions:
Flash kernel Experimental v11c[JB 4.1.2] WITH FASTBOOT
Boot to recovery
Do full wipe (factory data reset)
Flash ST25i_6.2.A.1.100_unofficial.zip.
If you wipe later ILLUMINATION WILL NOT WORK!
Reboot to system
If it boots wait for SHUT DOWN button and turn off device
Turn on again, second boot will take a bit longer JUST WAIT
Everithing should work now.
I did as what he said. Did I skip something?
 
ChikeD
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Quote:
Originally Posted by Shichiro View Post
The author said to "flash kernel"
I was referring to what @bharathbondfire said

[/quote]I did as what he said. Did I skip something?[/QUOTE]
Well, you obviousely did. Custom kernels are only possible to flash if the bootloader is unlocked.
 
Shichiro
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Quote:
Originally Posted by ChikeD View Post
I was referring to what @bharathbondfire said
I did as what he said. Did I skip something?[QUOTE]
Well, you obviousely did. Custom kernels are only possible to flash if the bootloader is unlocked.
Uhm. My bootloader is already unlocked sir. But incase it still is locked, how do I know if it's locked or unlocked?
I already know how to unlock it but how to know if it's locked or unlocked?
 
ChikeD
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[QUOTE=Shichiro;49445328]I did as what he said. Did I skip something?
Quote:
Well, you obviousely did. Custom kernels are only possible to flash if the bootloader is unlocked.
Uhm. My bootloader is already unlocked sir. But incase it still is locked, how do I know if it's locked or unlocked?
I already know how to unlock it but how to know if it's locked or unlocked?
How can you know how to unlock if you don't know how to check if it's locked.
in dialer type *#*#7378432#*#*, click service info, click configuration.
If rooting status is "bootloader unlocked: yes", it is locked, if it's "bootloader unlock allowed: yes(or no)" then it's not.
 
Shichiro
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[QUOTE=ChikeD;49446046]
Quote:
Originally Posted by Shichiro View Post
I did as what he said. Did I skip something?

How can you know how to unlock if you don't know how to check if it's locked.
in dialer type *#*#7378432#*#*, click service info, click configuration.
If rooting status is "bootloader unlocked: yes", it is locked, if it's "bootloader unlock allowed: yes(or no)" then it's not.
Not because I know how to unlock it means that I know how to check if it's locked or not.

I simply followed the steps here - http://talk.sonymobile.com/t5/Xperia...om/td-p/223263 few days ago.
 
bharathbondfire
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[QUOTE=Shichiro;49450713]
Quote:
Originally Posted by ChikeD View Post
Not because I know how to unlock it means that I know how to check if it's locked or not.

I simply followed the steps here - http://talk.sonymobile.com/t5/Xperia...om/td-p/223263 few days ago.
Have u updated ur phone to jellybean
if not,ask any required help

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