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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

{GUIDE} How to Install Jelly Bean , ICS ( Ice Cream Sandwich) and Gingerbread on Xperia™ Smartphones, as well as root them

Visitor
Message 1041 of 1,189
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Message 1041 of 1,189

Re: {GUIDE} How to Install Jelly Bean , ICS ( Ice Cream Sandwich) and Gingerbread on Xperia™ Smartphones, as well as root them

Do I need to unlock my bootloader to flash my Arc S to 4.0.2.A.0.42? I want to root my Arc S and install custom ROM on it.

One time poster
Message 1042 of 1,189
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Message 1042 of 1,189

Re: {GUIDE} How to Install Jelly Bean , ICS ( Ice Cream Sandwich) and Gingerbread on Xperia™ Smartphones, as well as root them

sir nabeel can i flash the xperia v firmware to my xperia acro s??

Forum Legend
Message 1043 of 1,189
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Message 1043 of 1,189

Re: {GUIDE} How to Install Jelly Bean , ICS ( Ice Cream Sandwich) and Gingerbread on Xperia™ Smartphones, as well as root them

satyanreddyg Great,

DuleJovanovski Yes, you may loose the warranty

*VIC* No you don't need to unlock it

jojonz Nopes mate, don't do that ever if you love your phone Smiling Face with open mouth & closed Eyes.

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Forum Legend
Message 1044 of 1,189
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Message 1044 of 1,189

Re: {GUIDE} How to Install Jelly Bean , ICS ( Ice Cream Sandwich) and Gingerbread on Xperia™ Smartphones, as well as root them

Dear Users

New Update: Upon request from users, i've created a facebook page where you can get updates on whatever happens here, new firmwares, new android versions, new rooting methods etc. Here's the link

http://www.facebook.com/GuideToFlashRootXperiaNabeel

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Visitor
Message 1045 of 1,189
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Message 1045 of 1,189

Re: {GUIDE} How to Install Jelly Bean , ICS ( Ice Cream Sandwich) and Gingerbread on Xperia™ Smartphones, as well as root them

@Nabeel: I am an xperia U ST25i user... the firmware for ICS is given for the st25...Can i use this firmware to my xperia u st25i for ICS update?

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Message 1046 of 1,189
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Message 1046 of 1,189

Re: {GUIDE} How to Install Jelly Bean , ICS ( Ice Cream Sandwich) and Gingerbread on Xperia™ Smartphones, as well as root them

There is "i" firmware only Thinking Face

Check the link again. It's

ST25i_6.1.1.B.1.10_Generic_World.rar

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Visitor
Message 1047 of 1,189
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Message 1047 of 1,189

Re: {GUIDE} How to Install Jelly Bean , ICS ( Ice Cream Sandwich) and Gingerbread on Xperia™ Smartphones, as well as root them

I cant find the firmware you mentioned in your post. i will be very helpful if u give me the link of firmware for ICS ST25i...

Forum Legend
Message 1048 of 1,189
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Message 1048 of 1,189

Re: {GUIDE} How to Install Jelly Bean , ICS ( Ice Cream Sandwich) and Gingerbread on Xperia™ Smartphones, as well as root them

http://www.4shared.com/rar/pjOBgupC/ST25i_611B110_Generic_World.html

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Visitor
Message 1049 of 1,189
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Message 1049 of 1,189

Re: {GUIDE} How to Install Jelly Bean , ICS ( Ice Cream Sandwich) and Gingerbread on Xperia™ Smartphones, as well as root them

tnx Slightly smiling Face

Visitor
Message 1050 of 1,189
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Message 1050 of 1,189

Re: {GUIDE} How to Install Jelly Bean , ICS ( Ice Cream Sandwich) and Gingerbread on Xperia™ Smartphones, as well as root them

@Nabeel: i cant Findd the driver for my xperia u st25i.. i have installed the driver which is given on the flashtool folder...but when i connect my phone the flashtool says it cant find any driver so the phone get disconnected. So what can i do? Please help me Slightly frowning Face