Develop Bugs

[Acro S][Kernel] Stock Kernel + CWM + Root (updated latest 6.1.A.2.55)

[Disclaimer] Do it at your own risk. I am not responsible for anything happened to your phone.
Hi all, I've just upgraded my phone to Acro S recently. It is running ICS 4.0.4 build 6.1.A.1.58. It has been updated to 6.1.A.2.55
So here is a modified Stock Kernel with CWM which I created based on Arakmar's Stock ICS kernel (Build 11) for XS
Credits:
1. Arakmar - for the ramdisk and CWM
2. DoomLord and FXP team - for too many things to mention
Link (do not mirror)
6.1.A.2.55 - http://www.mediafire.com/?zuzatcl3it3zce7
6.1.A.2.50 - http://www.mediafire.com/?jrjiwg13w3gvxpf
6.1.A.2.45 - http://www.mediafire.com/?rq43glb93khd9ia
6.1.A.1.58 - http://www.mediafire.com/?wsuha53wvcc3cav
Instructions:
1. Unzip the files to the fastboot folder, there are 2 files:
kernel.sin -- Stock ICS Kernel
kernel-cwm.elf -- Stock ICS Kernel with init.d support and CWM 5.5.0.4
2. Get into fastboot mode, type:
- To flash the CWM kernel
Code:
fastboot flash boot kernel-cwm.elf
- To flash back the Stock kernel
Code:
fastboot flash boot kernel.sin
To get into CWM - Reboot your phone, tap the screen (not buttons) a few times when the blue led and button lights appear
To root your phone, follow instructions here: http://forum.xda-developers.com/showpost.php?p=30320507&postcount=11
If you like it, please hit the [Thanks] button or you can buy me a beer

Thank you.
But i have a question: what is ram disk use for?
I used xperia s mod kernel to flash supersu.apk, then flash back stock arco s kernel, and add CMW. But some .zip file can not use.

Does this give us root or do i need to root the phone first and then flash this kernel ?
Also, do we need to unlock bootloader for this ?

Can anyone please comment on performance? Thanks in advance!!

Hi do i need to flash these 2 files or just one i want cwm.and does it include root or not?

mercury_beta said:
Thank you.
But i have a question: what is ram disk use for?
I used xperia s mod kernel to flash supersu.apk, then flash back stock arco s kernel, and add CMW. But some .zip file can not use.
Click to expand...
Click to collapse
ramdisk is part of kernel. it runs initial scripts that control how the phone starts.
dusanzk said:
Does this give us root or do i need to root the phone first and then flash this kernel ?
Also, do we need to unlock bootloader for this ?
Click to expand...
Click to collapse
You need to unlock bootloader first. This kernel won't give you root. But you can boot into cwm to flash any package that root your phone or you can flash a complete rom, if available.
john9 said:
Can anyone please comment on performance? Thanks in advance!!
Click to expand...
Click to collapse
There is no difference in performance as stock kernel
noriya said:
Hi do i need to flash these 2 files or just one i want cwm.and does it include root or not?
Click to expand...
Click to collapse
You need to flash only the one with cwm. It won't root your phone.

Thanks for your reply,is it ok to flash cwm without root first?and unlock bootloader is the same xperia s right?

cobrato said:
[Disclaimer] ]
Hi all, I've just upgraded my phone to Acro S recently. It is running ICS 4.0.4 build 6.1.A.1.58
)
Click to expand...
Click to collapse
Could you make a pre-root one?

I am sorry.
Although I checked, and kernel.sin of original and kernel.sin of cobrato are the same, is it right now?

puriketsuangel said:
I am sorry.
Although I checked, and kernel.sin of original and kernel.sin of cobrato are the same, is it right now?
Click to expand...
Click to collapse
I think you're right. The moded kernel is kernel-cwm.elf.

Root Package
Here is the Root package after you flash the kernel with cwm
To root your phone:
1. copy the RootPhone.zip file to sdcard (internal storage)
2. reboot into cwm
3. install the package
4. reboot
Link:
http://www.mediafire.com/?11rhxm1k490edxz

papacarla said:
I think you're right. The moded kernel is kernel-cwm.elf.
Click to expand...
Click to collapse
Sorry.
Ｔhanks　alot.

It works on Acro HD with Acro S's ICS ROM flashed exlude baseband.
UPD: I did not like the ICS. There are only 320 mb of free RAM. I have 460 mb of free RAM on 2.3.7. So, I installed back the 2.3.7

if you could add 2way call recording patch to this kernel would be great

cobrato said:
Here is the Root package after you flash the kernel with cwm
To root your phone:
1. copy the RootPhone.zip file to sdcard (internal storage)
2. reboot into cwm
3. install the package
4. reboot
Link:
http://www.mediafire.com/?11rhxm1k490edxz
Click to expand...
Click to collapse
This worked for me, unlocked bootloader, flashed kernel-cwm and then flashed rootphone in CWM. Thanks.
Just a suggestion,
You might wanna add "+ Root" to your title seeing as this is another way to root the device.

With CWM, can we then flash custom ROMs for Xperia S or a Kernel with permanent root (e.g. DoomKernel)?
I'd like to get rid of all the Facebook-crap in the stock ROM but if it will be there again after the next update from Sony it's no use.

skycamefalling said:
With CWM, can we then flash custom ROMs for Xperia S or a Kernel with permanent root (e.g. DoomKernel)?
I'd like to get rid of all the Facebook-crap in the stock ROM but if it will be there again after the next update from Sony it's no use.
Click to expand...
Click to collapse
Once you unlock bootloader, you can flash any custom kernel.
If the kernel comes with CWM, you can flash any rom/zip with root
But I think current S custom kernels/roms are based on older version: 6.1.A.0.452

Bootloader unlock will probably void warranty.
But how about rooting? No righht?

Where to find the tools for unlocking bootloader.
Would appreciate a link if anybody now...

SweKen said:
Where to find the tools for unlocking bootloader.
Would appreciate a link if anybody now...
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1527159
It's the same method for Xperia P/U/S/Acro S.

[Q] flashing kernels with flashtool

hi guys i wanted to root my xperia s jelly bean and i found doomloard advance kernel with cwm in the thread they say flash it in fast boot mode but i want to flash it with flash tool because it is easier than fastboot .
is there any way to flash this (kernel.elf) with flashtool ?

KARZANNAWZAD said:
hi guys i wanted to root my xperia s jelly bean and i found doomloard advance kernel with cwm in the thread they say flash it in fast boot mode but i want to flash it with flash tool because it is easier than fastboot .
is there any way to flash this (kernel.elf) with flashtool ?
Click to expand...
Click to collapse
Flashboot is not a software , you can flash kernel using flashtool.
You need flashboot to flash kernel, If your bootloader is locked you don't have access to fastboot.
So unlock boot loader first
Read this tutorial.
Its easy.

KARZANNAWZAD said:
hi guys i wanted to root my xperia s jelly bean and i found doomloard advance kernel with cwm in the thread they say flash it in fast boot mode but i want to flash it with flash tool because it is easier than fastboot .
is there any way to flash this (kernel.elf) with flashtool ?
Click to expand...
Click to collapse
Read this to learn how to use fastboot in flashtool to flash kernels: http://forum.xda-developers.com/sho...img / kernel.elf / kernel.sin using flashtool.
Remember your bootloader needs to be unlocked! And that kernel isn't auto rooted as far as I know, it's just stock kernel with CWM. But there is a file you can flash with that CWM to root, Doom has linked to it I think. There's another way to root as well, bset check a few more threads.
Sent from my LT26i using xda app-developers app

You could try this
http://forum.xda-developers.com/showthread.php?p=41969456
Sent from my 4.2.2 Xperia S via Tapatalk

Thank you I have re root my phone
Sent from my LT26i using xda premium

[6.2.b.0.211]Need help after fail trying to root Xperia S

Hi, today I tried to update my Xperia S to 6.2.b.0.211 using this method: http://forum.xda-developers.com/showthread.php?t=2302631
But I got a brick which put my phone on a bootloop like the sony logo wouldn't disappear. So I used PC Companion to repair it and now I'm at 6.2.b.0.200 without root.
What I'm asking: Is there any way to root/flash a pre-rooted rom or whatever to have my phone rooted?
Thanks in advance.

myownway said:
Hi, today I tried to update my Xperia S to 6.2.b.0.211 using this method: http://forum.xda-developers.com/showthread.php?t=2302631
But I got a brick which put my phone on a bootloop like the sony logo wouldn't disappear. So I used PC Companion to repair it and now I'm at 6.2.b.0.200 without root.
What I'm asking: Is there any way to root/flash a pre-rooted rom or whatever to have my phone rooted?
Thanks in advance.
Click to expand...
Click to collapse
I need to know this too, I'm on JB, 6.2.B.0.200 cannot root, tried everything ....
Can anyone help please??

myownway said:
Hi, today I tried to update my Xperia S to 6.2.b.0.211 using this method: http://forum.xda-developers.com/showthread.php?t=2302631
But I got a brick which put my phone on a bootloop like the sony logo wouldn't disappear. So I used PC Companion to repair it and now I'm at 6.2.b.0.200 without root.
What I'm asking: Is there any way to root/flash a pre-rooted rom or whatever to have my phone rooted?
Thanks in advance.
Click to expand...
Click to collapse
Horse Trader said:
I need to know this too, I'm on JB, 6.2.B.0.200 cannot root, tried everything ....
Can anyone help please??
Click to expand...
Click to collapse
Hello guys, u dont need pre-rooted rom or use the old .200 rom anymore
just get the .211 stock rom and u can root it!!
Seems the .211 rom is not available in many country, including Hong Kong (where i'm from)
u can just flash the .211 rom with the ftf file with flash tool in your XS
u may download it here : http://goo.im/devs/DooMLoRD/xperia_s/LT26i_6.2.B.0.211.ftf
u can flash it in without wiping data or cache (while the pre-rooted rom will wipe data)
then root it with doomlord easy rooting kit : http://forum.xda-developers.com/showthread.php?t=2327473
hope it helps

KWOKSFUNG said:
Hello guys, u dont need pre-rooted rom or use the old .200 rom anymore
just get the .211 stock rom and u can root it!!
Seems the .211 rom is not available in many country, including Hong Kong (where i'm from)
u can just flash the .211 rom with the ftf file with flash tool in your XS
u may download it here : http://goo.im/devs/DooMLoRD/xperia_s/LT26i_6.2.B.0.211.ftf
u can flash it in without wiping data or cache (while the pre-rooted rom will wipe data)
then root it with doomlord easy rooting kit : http://forum.xda-developers.com/showthread.php?t=2327473
hope it helps
Click to expand...
Click to collapse
Hi, thanks for the reply. One more question, is this rom region free and with all langs?

myownway said:
Hi, today I tried to update my Xperia S to 6.2.b.0.211 using this method: http://forum.xda-developers.com/showthread.php?t=2302631
But I got a brick which put my phone on a bootloop like the sony logo wouldn't disappear. So I used PC Companion to repair it and now I'm at 6.2.b.0.200 without root.
What I'm asking: Is there any way to root/flash a pre-rooted rom or whatever to have my phone rooted?
Thanks in advance.
Click to expand...
Click to collapse
Here is very easy and wonderful way !
1. Unlock the bootloader ! http://forum.xda-developers.com/showthread.php?t=1560613&nocache=1
2. Download flashtool and install it. http://androxyde.github.io/
3. Download doomkernel and SuperSU-1.25-Busybox-1.20.2-UPDATE.zip - 1.43 MB http://forum.xda-developers.com/showthread.php?t=2305591
4. Now flash the doomkernel via flashtool and restart the phone. Now when you see cool doomlord logo, pressing at 'volume +' you will get CWM recovery and pressing at camera button you will get TWRP recovery. choose any one of them and flash this 'SuperSU-1.25-Busybox-1.20.2-UPDATE.zip - 1.43 MB'
ALL THE BEST !

myownway said:
Hi, thanks for the reply. One more question, is this rom region free and with all langs?
Click to expand...
Click to collapse
I'm not sure if it's region free but i can instal in on my Hong Kong version Xperia S so i believe it can be installed on yours
i believes most languages are here too
but there's only xperia international keyboard by default
seems other keyboard can still e added in setting
but the Xperia Chinese keyboard is missing and i have to flash it myself
if u dont like this version, u may look for another ftf file
---------- Post added at 04:16 PM ---------- Previous post was at 04:15 PM ----------
pracas said:
Here is very easy and wonderful way !
1. Unlock the bootloader ! http://forum.xda-developers.com/showthread.php?t=1560613&nocache=1
2. Download flashtool and install it. http://androxyde.github.io/
3. Download doomkernel and SuperSU-1.25-Busybox-1.20.2-UPDATE.zip - 1.43 MB http://forum.xda-developers.com/showthread.php?t=2305591
4. Now flash the doomkernel via flashtool and restart the phone. Now when you see cool doomlord logo, pressing at 'volume +' you will get CWM recovery and pressing at camera button you will get TWRP recovery. choose any one of them and flash this 'SuperSU-1.25-Busybox-1.20.2-UPDATE.zip - 1.43 MB'
ALL THE BEST !
Click to expand...
Click to collapse
i dont think unlocking the bootloader is required as it is a stock rom
btw, doing this will make u lose your bravia engine

u can root official . 200 FW. Your device must be UL, flash with fastboot doomkernel v5 and then you have CWM and root.
Sent from my LT26i using xda premium

serqeftin said:
u can root official . 200 FW. Your device must be UL, flash with fastboot doomkernel v5 and then you have CWM and root.
Sent from my LT26i using xda premium
Click to expand...
Click to collapse
u cant root official .200 but u can root .211 without unlocking the bootloader
i tried and it works well for me

Problem in Arc S while rooting to install custom ROM

I want to root my Xperia Arc S LT18i
my current ROM .587
i followed this instruction:
flash 4.1.B.0.587
- flash an insecure (lower build) kernel
- root using the 2011 Xperia ICS Rooting Toolkit
- flash back the 4.1.B.0.587 kernel
but after Flash back to 4.1.B.0.587 super user SU disappear and not rooted
Please i need you support

MASDASL said:
I want to root my Xperia Arc S LT18i
my current ROM .587
i followed this instruction:
flash 4.1.B.0.587
- flash an insecure (lower build) kernel
- root using the 2011 Xperia ICS Rooting Toolkit
- flash back the 4.1.B.0.587 kernel
but after Flash back to 4.1.B.0.587 super user SU disappear and not rooted
Please i need you support
Click to expand...
Click to collapse
in step 3 you must uncheck some thing in flashtool but i forgot them ...
instead you can use unlocking your bootloader and then flash stock pre-rooted kernel and install SU on your rom...
(its very easier than your way)

Maybe you can try the one click root... It's there in general section...
Sent from my Xperia Neo V using xda app-developers app

s.bluedreams said:
in step 3 you must uncheck some thing in flashtool but i forgot them ...
instead you can use unlocking your bootloader and then flash stock pre-rooted kernel and install SU on your rom...
(its very easier than your way)
Click to expand...
Click to collapse
Already my bootloader is unhooked
this is mean flash the kernel LT18i_4.1.B.0.431_Kernel_DOWNgrade ??????

MASDASL said:
I want to root my Xperia Arc S LT18i
my current ROM .587
i followed this instruction:
flash 4.1.B.0.587
- flash an insecure (lower build) kernel
- root using the 2011 Xperia ICS Rooting Toolkit
- flash back the 4.1.B.0.587 kernel
but after Flash back to 4.1.B.0.587 super user SU disappear and not rooted
Please i need you support
Click to expand...
Click to collapse
If you're going to use Stock ROM
if you flashed back .587 ftf, you probably left all .sin checked. You should have unchecked kernel.sin, No final verification unchecked.
Reflash custom kernel. If still no root, flash flashable zip in SuperSU thread
If you're going to use a custom ROM
Just flash respective kernel, wipe data,cache,dalvik,system in CWM and install rom. No need to root .587, flashing .587 is for increasing partition only(in case).

zgmfx20 said:
If you're going to use Stock ROM
if you flashed back .587 ftf, you probably left all .sin checked. You should have unchecked kernel.sin, No final verification unchecked.
Reflash custom kernel. If still no root, flash flashable zip in SuperSU thread
If you're going to use a custom ROM
Just flash respective kernel, wipe data,cache,dalvik,system in CWM and install rom. No need to root .587, flashing .587 is for increasing partition only(in case).
Click to expand...
Click to collapse
do you mean exclude them at the right part in Flash tool???
then what should i exclude exactly ???

MASDASL said:
do you mean exclude them at the right part in Flash tool???
then what should i exclude exactly ???
Click to expand...
Click to collapse
kernel.sin if you flashed kernel before flashing .587 ftf. Or you may flash ftf, then flash kernel, then flash zip in SuperSU thread.
Are you needing Stock ROM or Custom ROM?

MASDASL said:
Already my bootloader is unhooked
this is mean flash the kernel LT18i_4.1.B.0.431_Kernel_DOWNgrade ??????
Click to expand...
Click to collapse
NO
please search in forums to know how you can unlock your BL

yes exactly what i need to install custom ROM via CWM and X-part
what should i do ??

s.bluedreams said:
NO
please search in forums to know how you can unlock your BL
Click to expand...
Click to collapse
i already unlocked it and ensure that via service command through dail *#*#service#*#*
and Bootloader unlocked : Yes

MASDASL said:
i already unlocked it and ensure that via service command through dail *#*#service#*#*
and Bootloader unlocked : Yes
Click to expand...
Click to collapse
do you do this steps???
http://forum.xda-developers.com/showthread.php?t=1034087

zgmfx20 said:
kernel.sin if you flashed kernel before flashing .587 ftf. Or you may flash ftf, then flash kernel, then flash zip in SuperSU thread.
Are you needing Stock ROM or Custom ROM?
Click to expand...
Click to collapse
i need to install custom one like CM 10 or CM 10.1

MASDASL said:
i need to install custom one like CM 10 or CM 10.1
Click to expand...
Click to collapse
If your BL is unlocked you should download Rom and kernel that you want
rom must be .zip and you should place it in sd card
kernel must be .img or .elf
and kernel Wi-Fi modules must be .zip and you should place it on SD too
then you download QuickIMG tool and place the kernel in images folder of it
then turn off phone and hold menu key and plug usb cable
LED would be blue
then you open QuickIMG and choose your kernel and flash it
then turn on phone
when the led is blue you should press Vol down key
then you enter CWM
do:
-wipe date
-wipe cache
-mount and storage > format/system
-advanced> wipe dalvick cache
then install zip and choose Rom
then install zip and choose Wi-fi modules
reboot...

MASDASL said:
yes exactly what i need to install custom ROM via CWM and X-part
what should i do ??
Click to expand...
Click to collapse
CM10 you say then you need a custom JB kernel, like Fusion,Lupus or nAa kernel, or whatever kernel you want.
You don't need X-Parts. There are many tutorials out there. But I'll just help you.
Download kernel and paste to pc, in any folder.
1) Flash .587 ftf
2) Flash custom kernel (with phone off, hold menu button, connect to pc. Go to Flashtool, then click the thunderlike button, select fastboot mode, select kernel to flash, point to kernel file)
3) Boot, then repetitively press back button to boot to CWM. If lupus kernel, it is volume down.
4) wipe data,cache,dalvik cache,system
5) Install ROM

s.bluedreams said:
do you do this steps???
http://forum.xda-developers.com/showthread.php?t=1034087
Click to expand...
Click to collapse
Yes Sir

zgmfx20 said:
CM10 you say then you need a custom JB kernel, like Fusion,Lupus or nAa kernel, or whatever kernel you want.
You don't need X-Parts. There are many tutorials out there. But I'll just help you.
Download kernel and paste to pc, in any folder.
1) Flash .587 ftf
2) Flash custom kernel (with phone off, hold menu button, connect to pc. Go to Flashtool, then click the thunderlike button, select fastboot mode, select kernel to flash, point to kernel file)
3) Boot, then repetitively press back button to boot to CWM. If lupus kernel, it is volume down.
4) wipe data,cache,dalvik cache,system
5) Install ROM
Click to expand...
Click to collapse
my phone now flashed with kernel .587
where is the custom kernel ???

MASDASL said:
my phone now flashed with kernel .587
where is the custom kernel ???
Click to expand...
Click to collapse
use this kernel for Cm10 or 10.1
http://forum.xda-developers.com/showthread.php?t=1926299&highlight=fusion

MASDASL said:
my phone now flashed with kernel .587
where is the custom kernel ???
Click to expand...
Click to collapse
LuPuSJBv12
or
Fusion

zgmfx20 said:
LuPuSJBv12
or
Fusion
Click to expand...
Click to collapse
After Flashing this kernel an do the above step
are the ROM from Free Xperia Project FXP226-cm-10-20130629-UNOFFICIAL-pepper will be installed on my Arc S LT18i ????

MASDASL said:
After Flashing this kernel an do the above step
are the ROM from Free Xperia Project FXP226-cm-10-20130629-UNOFFICIAL-pepper will be installed on my Arc S LT18i ????
Click to expand...
Click to collapse
dude pepper is for Xperia Sola. You need anzu(Arc) or ayame(Arc S).
If you need to choose what rom for JB, here. 2nd post

[Q] problem in xperia s

i cant instal cwm
i need to install iHackers [MIUI v5] v1.3 rom but i cant because i dont know how to reboot recovery
thanks

you need a unlocked bootloader + kernel with recovery
you also need to press volume up when it shows first screen when you power your phone up
Sent from my LT26i using XDA Premium 4 mobile app

elzaim2010 said:
i cant instal cwm
i need to install iHackers [MIUI v5] v1.3 rom but i cant because i dont know how to reboot recovery
thanks
Click to expand...
Click to collapse
You can't install that ROM on locked bootloader!
Read this carefully! Here is solution, if you really want to install this.
http://forum.xda-developers.com/showthread.php?p=42101358
Sent from my LT26i using xda app-developers app

pracas said:
You can't install that ROM on locked bootloader!
Read this carefully! Here is solution, if you really want to install this.
http://forum.xda-developers.com/showthread.php?p=42101358
Sent from my LT26i using xda app-developers app
Click to expand...
Click to collapse
i have aleardy unlock bootloader but when i was trying using cwm rom he tell me that i dont have root really i dont understand what can i do
i can use flah tool if there any kerenal unable cwm i need it and how to install
thanks

elzaim2010 said:
i have aleardy unlock bootloader but when i was trying using cwm rom he tell me that i dont have root really i dont understand what can i do
i can use flah tool if there any kerenal unable cwm i need it and how to install
thanks
Click to expand...
Click to collapse
The MIUI thread has a complete tutorial of how to unlock bootloader (okay you did that), but after that it explains you how to root and install CWM. What firmware are you on? From what I can see the instructions for how to root .200/.211 are a bit daft though (the author expects you to already have a custom recovery). If you're on .200 or .211, skip the rooting step and just flash one of the custom kernels with fastboot (for how to flash a kernel with fastboot, you can also use Flashtool to do this, see here: http://forum.xda-developers.com/showthread.php?t=1963961). Depending on which recovery you installed/tried to install, there are different ways of accessing it. If you used RecoverX, you need to tap the Sony logo a few times when you're rebooting. If you used a custom kernel or the 6.0.3.0 recovery for JB DooMLorD has posted, you need to press volume up when rebooting.
If we're to help you, we'd like a little more information. So what firmware are you currently using, which recovery were you trying to install?

Redstarr1 said:
The MIUI thread has a complete tutorial of how to unlock bootloader (okay you did that), but after that it explains you how to root and install CWM. What firmware are you on? From what I can see the instructions for how to root .200/.211 are a bit daft though (the author expects you to already have a custom recovery). If you're on .200 or .211, skip the rooting step and just flash one of the custom kernels with fastboot (for how to flash a kernel with fastboot, you can also use Flashtool to do this, see here: http://forum.xda-developers.com/showthread.php?t=1963961). Depending on which recovery you installed/tried to install, there are different ways of accessing it. If you used RecoverX, you need to tap the Sony logo a few times when you're rebooting. If you used a custom kernel or the 6.0.3.0 recovery for JB DooMLorD has posted, you need to press volume up when rebooting.
If we're to help you, we'd like a little more information. So what firmware are you currently using, which recovery were you trying to install?
Click to expand...
Click to collapse
MY PHONE INFORMATION
model number lt26i
android version 4.1.2
baseband version 86660-AAA065-BQOLYM-314010-39
KERNEL VERSION 3.4.0+1.0.21100-313065-G1CCEBB5-00193-GCBC50FC
BUILD NUMBER 6.2.B.1.96