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

cobrato · Aug 15, 2012

[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://xdaforums.com/showpost.php?p=30320507&postcount=11

If you like it, please hit the [Thanks] button or you can buy me a beer

mercury_beta · Aug 15, 2012

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.

dusanzk · Aug 15, 2012

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 ?

john9 · Aug 15, 2012

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

noriya · Aug 15, 2012

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

cobrato · Aug 15, 2012

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.

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 ?

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!!

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?

You need to flash only the one with cwm. It won't root your phone.

noriya · Aug 16, 2012

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

papacarla · Aug 16, 2012

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

)

Could you make a pre-root one?

puriketsuangel · Aug 16, 2012

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

papacarla · Aug 16, 2012

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?

I think you're right. The moded kernel is kernel-cwm.elf.

cobrato · Aug 17, 2012

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

puriketsuangel · Aug 17, 2012

papacarla said:
I think you're right. The moded kernel is kernel-cwm.elf.

Sorry.
Ｔhanks　alot.

papacarla · Aug 18, 2012

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

veimus · Aug 18, 2012

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

dusanzk · Aug 18, 2012

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

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.

skycamefalling · Aug 18, 2012

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.

cobrato · Aug 19, 2012

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.

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

zhuhang · Aug 22, 2012

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

SweKen · Aug 22, 2012

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

heeroyun · Aug 22, 2012

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

http://xdaforums.com/showthread.php?t=1527159

It's the same method for Xperia P/U/S/Acro S.

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

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