Develop Bugs

[Q] How do I upgrade to 4.0 with a LOCKED Bootloader? PLEASE HELP =)

Hey guys! As the title states, Just trying to figure out a step-by-step way to upgrade my Arc to 4.0+ whilst having a LOCKED BOOTLOADER.
I am unable to unlock the bootloader and understand this causes quite a few problems.
I already "bricked" the phone once..had to repair it to get it back to stock again. I don't want to go through that again..
So, it would be greatly appreciated if someone could kindly direct me to, or outline here, a step-by-step guide to installing ICS on my Xperia Arc.
Thanks for all your time and help!

Use flashtool to flash the official ICS release.

sinkster said:
Use flashtool to flash the official ICS release.
Click to expand...
Click to collapse
Hey thanks for the quick reply. Do I need to have root before upgrading? And also, do I need CWM recovery?
Can I just use flashtool to flash the ftf file?
Thanks again for the help. Much appreciated
Sent from my SGH-T989 using xda premium

Just flash using flashtool, it flashes the kernel too. I think Binary has added a root file too.
sinkster©

There is an update you need to apply to flashtools if you have version .6 you need version .7 look in stickies for flashtools... Info in that thread.
Sent from my LT18i using XDA App

If your phone is Xperia Arc(LT 15i) I recommend you to wait the official update of ICS for arc, at this moment ICS is available for Arc S. I have Xperia Arc but i use a custom ICS rom with custom kernel, and bootloader unlocked.

Thanks everyone for the info.
My Xperia is LT15a, but I recently got it repaired and now it says LT18a instead. =S
Android 2.3.4
Baseband: 8x55A-AAABQOAZM-203028D-64
Kernel: 2.6.32.9-perf - [email protected] #1
Build Number: 4.0.2.A.0.62
Bootloader is Locked
Can I still upgrade?
Thanks again for your time and help!

SH31KH said:
My Xperia is LT15a, but I recently got it repaired and now it says LT18a instead. =S
Click to expand...
Click to collapse
huh ? i do not understand... is it okay for the repair shop to do that ? . . . there are several h/w differences between last year's model and this year's model to 'require' the new internal s/w to properly talk to the new h/w ( drivers... )
.
please correct me if i am wrong.

[Q] How to get root access on Xperia Arc LT15 i build 4.1.B.0.431

Hi All,
I have currently updated my Xperia Arc LT 15i to build 4.1.B.0.431. I haven't rooted my phone till now. Its my first time and I want to know step by step procedure to root my device.
Thanks,
Saurabh Malhotra

There's a thread dedicated to rooting 4.0.4. Find it.
Next time ask your question in the q&a forum before a mod locks this and you don't get an answer
Edit: Well it got moved without being locked.
Sent from my LT15a using XDA

There is thread dedicated to rooting flashed 4.0.4, not stock 4.0.4, so I am also wondering how to root my device!

There is a working root for 4.3 if u want update phone OTA to 4.3 then root or if you can't OTA u will have to flash the 4.0.4 method.
The mod will lock this so please view the forum dedicated to this.
Sent from my LT15i using XDA

Questions go in the Q&A section

^eLipS# said:
There is thread dedicated to rooting flashed 4.0.4, not stock 4.0.4, so I am also wondering how to root my device!
Click to expand...
Click to collapse
By stock do you mean updated through pc companion or seus?
ATM there's no way to root without flashing
Sent from my LT15a using XDA

So many threads about rooting ICS, if you come from 4.0.3 rooted then you must do the OTA (over the air) to update to 4.0.4 and you will keep the root, very simple and indeed there is not yet a root kit by Doomlord so ne patient and not posting tons of threads how to roor 4.0.4, right uppercorner stands...SEARCH
And is that not possible to do the ota flash then a costum rom

[Q] arc s

hi every one
im trying 2 root my arc s on ICS 4.0.4
and after i flash my phone i opend the runme.exe file
and while it's rooting it says he can't install busy box and ui coz it's not located in my system file on my phone plz
if there any one can help me
tell me what can i do?

semsem295 said:
hi every one
im trying 2 root my arc s on ICS 4.0.4
and after i flash my phone i opend the runme.exe file
and while it's rooting it says he can't install busy box and ui coz it's not located in my system file on my phone plz
if there any one can help me
tell me what can i do?
Click to expand...
Click to collapse
If im not mistaken, arc s android 4.0.4 is not rootable unless you flash the kernel from version 4.0.3/build 562. Try looking around, there are tons of thread about rooting the android 4.0.4
Sent from my LT18i using xda premium

hi
maliceomalice said:
If im not mistaken, arc s android 4.0.4 is not rootable unless you flash the kernel from version 4.0.3/build 562. Try looking around, there are tons of thread about rooting the android 4.0.4
Sent from my LT18i using xda premium
Click to expand...
Click to collapse
thnx 4 ur reply
but this is not the answer that im waiting 4
i want 2 install the busybox and ui in runme.exe

semsem295 said:
thnx 4 ur reply
but this is not the answer that im waiting 4
i want 2 install the busybox and ui in runme.exe
Click to expand...
Click to collapse
Sorry but that's the reply you've got. Your 4.0.4 is not rootable
Sent from my LT18i using Tapatalk 2

What they said was right. That file will help you root your phone by exploiting a loophole in the .562 kernel.
So flash the kernel and you're good to go.
Swyped from my SE Xperia arc (LT15i) using Tapatalk 2

Questions go in the Q&A section

[Q] Alternatives rom to xperia s with 2.55 Firmwares with locked bootloader

Hello friends, good morning!
I have a xperia s with 2.55 Firmwares with locked bootloader. And, finally, I managed to make root through this process:
http://forum.xda-developers.com/showthread.php?p=39498268
I would change the official rom
What do you recommend me?
With the locked bootloader, is it possible for me to put some 4.1 or 4.2?

Gibri said:
Hello friends, good morning!
I have a xperia s with 2.55 Firmwares with locked bootloader. And, finally, I managed to make root through this process:
http://forum.xda-developers.com/showthread.php?p=39498268
I would change the official rom
What do you recommend me?
With the locked bootloader, is it possible for me to put some 4.1 or 4.2?
Click to expand...
Click to collapse
You cannot install 4.1 or 4.2 ROMs on locked boot loader for now. Sorry. Check the development section for a list of roms that work on locked bootloader. We are not allowed to tell which ROM is the best so you will have to try it for yourself. Sorry again.
Sent from my LT26i using xda app-developers app

Gibri said:
Hello friends, good morning!
I have a xperia s with 2.55 Firmwares with locked bootloader. And, finally, I managed to make root through this process:
http://forum.xda-developers.com/showthread.php?p=39498268
I would change the official rom
What do you recommend me?
With the locked bootloader, is it possible for me to put some 4.1 or 4.2?
Click to expand...
Click to collapse
Yes, you can root your phone with this method. Happy rooting
Sent from my LT26i using xda developers-app

[Q] Root Official Jelly Bean Rom without Unlocking.

Hey guys
Is it possible to root the .200 ROM (Official JB) without Unlocking the Bootloader?
I mean like eRoot etc.
I have no Recovery to flash something and I don't want to unlock it.
Thanks in advance for your replies.

http://forum.xda-developers.com/showthread.php?p=42155306
Sent from my 4.2.2 Xperia S via Tapatalk

Ben36 said:
http://forum.xda-developers.com/showthread.php?p=42155306
Sent from my 4.2.2 Xperia S via Tapatalk
Click to expand...
Click to collapse
:good:
I'm already on Jelly Bean, I mean rooting it without going back to ICS

N79 said:
:good:
I'm already on Jelly Bean, I mean rooting it without going back to ICS
Click to expand...
Click to collapse
If you want not to Unlock Bootloader, till now, you have to flashback to ICS and install CWM,
Otherwise you have to wait till a new way be discovered!