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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

One time poster
Message 1171 of 1,189
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Message 1171 of 1,189

Re: {GUIDE} How to Install Jelly Bean , ICS ( Ice Cream Sandwich) and Gingerbread on Xperia™ Smartph

When kit kat update relesing for xperia l
Forum Legend
Message 1172 of 1,189
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Message 1172 of 1,189

Re: {GUIDE} How to Install Jelly Bean , ICS ( Ice Cream Sandwich) and Gingerbread on Xperia™ Smartph

Xperia L will not get Kitkat update ever, sorry mate Slightly frowning Face

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Rookie
Message 1173 of 1,189
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Message 1173 of 1,189

Re: {GUIDE} How to Install Jelly Bean , ICS ( Ice Cream Sandwich) and Gingerbread on Xperia™ Smartph

Hi Nabeel,

 

I  need some help in resolving issues with my Sony Ericsson Xperia Arc S (LT18i). sorry for big post.

 

I have loaded Cynogenmod on my mobile, but now I want to goto stok firmware. Please guide me the steps for noob.

 

Small back ground:

My bro bought this phone a year back and felt its slow and struck some times. So, I collected it from him and want to resolve issues Slightly frowning Face. observed that there is a lag while opening dailer sometimes and sometimes after dailing number it takes approx 5-7 minutes to start dailing. so, wanted to resolve it Slightly frowning Face.

 

What I did: I read your guide for rooting and rooted using Eroot_V1.3.4. (also unlocked bootloader using sony offical code from website http://developer.sonymobile.com/unlockbootloader/ as suggested @http://wiki.cyanogenmod.org/w/Install_CM_for_anzu#Obtaining_the_Bootloader_Unlock_Code )

 

Finally I got Cynogenmod on my mobile. but I observed many bugs in it. the Slow/lagging problem still exists.

Yesterday when I tried to switch on bluetooth, the mobile went crazy. it automatically rebooting for every 3-5 minutes.

I went to recovery mode, tried different options, no use.

 

Actually I have taken backup before installing cynogenmod (cm-9.1.0-anzu.zip).

 

I took backup in view of going back, if some thing goes wrong. I thought it is the offical stock ware backup(rooted,unlocked and CWM added stock).So, just want to go back and tried to restore it. After sometime CWM restore completed when i rebooted system is up without any message on screen , I can see mobile is on by light.no flash screen nothing. after 10 minutes, I had to got back to latest backup of Cynogenmod.

Now I can see mobile is starting and CWm loaded but started rebooting loop. Then as a last try I have wiped cache/data.

Now my mobile is working but sometimes getting rebooted. 

 

So, in this situation I want to go back to stock rom. I just downloaded Xperia_Arc_S_Lt18i_4.1.B.0.587_1254-8596_Generic_India.rar (the link to 4.1.B.0.431 says This file is no longer available because of a claim by IFPI IFPI.)

 

Please advise me how to go back. I dont need unrooting or unlocking boot loader. Just going back to stock is fine.

the dailer lag, dailing lag are ok for now. Please help.

 

Thanks,

Aditya

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Message 1174 of 1,189
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Message 1174 of 1,189

Re: {GUIDE} How to Install Jelly Bean , ICS ( Ice Cream Sandwich) and Gingerbread on Xperia™ Smartph

Hello

Nice that you downloaded the firmware already, it's the latest version.

Now you need to flash it and it's quite easy. Just see the first post of this thread, http://talk.sonymobile.com/t5/Android-development/GUIDE-How-to-Install-Jelly-Bean-ICS-Ice-Cream-Sand...

 

See the topic " Install Jelly Bean and Ice Cream Sandwich"

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Rookie
Message 1175 of 1,189
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Message 1175 of 1,189

Re: {GUIDE} How to Install Jelly Bean , ICS ( Ice Cream Sandwich) and Gingerbread on Xperia™ Smartph

thanks Nebeel for quick responce. Noe I could revert firmware. Now I have to check how my system is working.

One time poster
Message 1176 of 1,189
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Message 1176 of 1,189

Re: {GUIDE} Install ICS as well as root Arc S , Ray and Neo V

Thank You so much buddy, worked perfetly for my Xperia Arc S.
God Bless You.

One time poster
Message 1177 of 1,189
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Message 1177 of 1,189

Re: {GUIDE} How to Install Jelly Bean , ICS ( Ice Cream Sandwich) and Gingerbread on Xperia™ Smartph

Thanksssssssssss, me re sirvio! jajajajaj

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Message 1178 of 1,189
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Message 1178 of 1,189

Re: {GUIDE} How to Install Jelly Bean , ICS ( Ice Cream Sandwich) and Gingerbread on Xperia™ Smartph

How do I root xperia C (C2305)?
One time poster
Message 1179 of 1,189
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Message 1179 of 1,189

Re: {GUIDE} How to Install Jelly Bean , ICS ( Ice Cream Sandwich) and Gingerbread on Xperia™ Smartph

Thanks for this well written guide
Learner
Message 1180 of 1,189
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Message 1180 of 1,189

Re: {GUIDE} Install ICS as well as root Arc S , Ray and Neo V

Is it safe to install ICS to Z2 ?