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.

How to root 4.1.B.0.431 v4.0.4?

How to root 4.1.B.0.431 v4.0.4?

the same question goes here
hope the elders care enough to answer this topic

There is currently no "direct" way...you need to downgrade to previous version, root that version and then flash the latest version. Am personally waiting for our elders to come up with a one-click

on which handset are u refering to pls

arc

have u checked out my tutorial or overlords easy option
http://forum.xda-developers.com/showthread.php?t=1683957
hear is the link for overlords thread u can find a link to how i did it in there too

One click root for 4.0.4 is out just check Android developpement forum..
Sent from my LT15i using XDA

Here is the link
http://forum.xda-developers.com/showthread.php?p=24882250

This root method not working for 4.1.B.0.431

Is there any easy way for rooting Xperia arc S? I have unlocked bootloader if that helps
Thanks for answers

you can try my method, it really easy
http://forum.xda-developers.com/showthread.php?t=1683957

Sorry about my link it Was for 4.A
my bad :/
Sent from my LT15i using XDA

I would ...
I have SE xperia ray
Android version 4.0.4 Build number 4.1.B.0.431
Kernel 2.6.32.9-perf
Since I upgraded from 4.0.3 (It was rooted) I can't root it again ... Is there any one-click methods of doing this?

not yet but there is a simple method
.flash the 4.0.3 kernel with flashtool
.use the one click root as you do normaly
.flash the 4.0.4 kernel
Just go to android dev forum there is a thread about this method in it
Sent from my LT18i using XDA

Did you even read the responses in this thread???
OverLo4d said:
you can try my method, it really easy
http://forum.xda-developers.com/showthread.php?t=1683957
Click to expand...
Click to collapse
Or...

[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

How to root sony ericson experia arc s LT18i

Hello i have the phone from 2 days, before i newer have worked with android os. So can anyone tellme how to root my phone. The phone version is 4.0.4 / 4.1.B.0.431
THANKS

Read through the topics, plenty of guides to rooting
Sent from my LT18i using xda premium

Minkysdad said:
Read through the topics, plenty of guides to rooting
Click to expand...
Click to collapse
+1 Type your thread title in to google, but obviously spell it correctly.

By checking this video and learning something new about this forum from it.
http://www.youtube.com/watch?v=JmvCpR45LKA

KoKoOo said:
Hello i have the phone from 2 days, before i newer have worked with android os. So can anyone tellme how to root my phone. The phone version is 4.0.4 / 4.1.B.0.431
THANKS
Click to expand...
Click to collapse
Use this thread http://forum.xda-developers.com/showthread.php?t=1683957
By the way Sony has released an update for the 4.1.B.0.431...so now its the 4.1.B.0.587 which is the newest update...i would recommend you update it to 587 from 431 and then root it

b_nikz said:
Use this thread http://forum.xda-developers.com/showthread.php?t=1683957
By the way Sony has released an update for the 4.1.B.0.431...so now its the 4.1.B.0.587 which is the newest update...i would recommend you update it to 587 from 431 and then root it
Click to expand...
Click to collapse
PLEASE.....WE STILL NEED YOUR HELP WITH LT18I SPECIFICALLY. PLEASE WE NEED THE ROOTING PROCEDURES BRO. #eXPECTING.

adepentane said:
PLEASE.....WE STILL NEED YOUR HELP WITH LT18I SPECIFICALLY. PLEASE WE NEED THE ROOTING PROCEDURES BRO. #eXPECTING.
Click to expand...
Click to collapse
Did you even check the link he posted? Instructions are there.

Thanks All.....one Love. I just saw it now.
Sent from my L3 using XDA Free mobile app

This is gingerbread..... so annoying wen i tink of d work ahead to upgrade it n root it.
Sent from my L3 using XDA Free mobile app

[Q] Is something possible for me?

Hello users i am new to xda and want to root my phone but after some time i have noticed that i dont really have an possible option to do this.
My phone:
SONY Xperia S / Lt26i / 6.1.A.2.55 / Android 4.0.4 ICS / Locked Bootlader / Bootloader unlock allowed: no/
At the beginning i wanted to try the method from "Bin4ry" but it doesn't work with my stock firmware and with the cf too. (i think)
Please help me!

dominik07 said:
Hello users i am new to xda and want to root my phone but after some time i have noticed that i dont really have an possible option to do this.
My phone:
SONY Xperia S / Lt26i / 6.1.A.2.55 / Android 4.0.4 ICS / Locked Bootlader / Bootloader unlock allowed: no/
At the beginning i wanted to try the method from "Bin4ry" but it doesn't work with my stock firmware and with the cf too. (i think)
Please help me!
Click to expand...
Click to collapse
Flash stock firmware like. 50 or. 45 using flashtool in flashmode.This is absolutely safe.Then root & flash cwm.After then flash kernel & baseband of. 55 and flash. 55 rom in cwm.
Press Thanks
Sent from my LT26i using xda premium

Will it not work how they're rooting the new U firmware? Just use flashtool to flash kernel only of the older firmware. Root with binary, then use flashtool to flash kernel only of the latest firmware again?
Sent from my Jellybean Xperia S

How i can do this?
RISHI RAJ said:
Flash stock firmware like. 50 or. 45 using flashtool in flashmode.This is absolutely safe.Then root & flash cwm.After then flash kernel & baseband of. 55 and flash. 55 rom in cwm.
Press Thanks
Sent from my LT26i using xda premium
Click to expand...
Click to collapse
and what about the warranty? and i heard that flashing down/downgrading is only possible when you have a unlocked bootlader

you can use flashtool even if youre on locked bootloader.

Flashtool is fine for warranty etc as it's only flashing official sony files
Sent from my Jellybean Xperia S

Thank you all for the answers but what i have to do now with the flashtool(i am a noob in android rooting but i am pro in psp hacking)

@RISHI RAJ
thank u for helping me but i dont understand your post cause i am a noob
It would be nice if some1 could post me here or some where else a guide to exactly this problem or thing

Yea!
I've rooted it so thank you very much for your help!