[Upgrading, Modifying and Unlocking] ady999:
Installing a custom kernel for overclocking CPU, for firmware .42/.58/.62

To check firmware on phone go to settings/about phone/build number, check last no is either .42, .58, .62

Note i did not change my baseband, my stock baseband is 8x55a-aaabqoazm-203028d-64 and im on t-mobile in the UK, it works perfect

my post for rooting:

http://xdaforums.com/showthread.php?t=1640737

Now that you’ve rooted your phone from my post you will have fastboot with usb drivers and recoveryarc.img, if you rooted your phone in a different way please search this site http://xdaforums.com

You need to read all this and aquire the files from here http://xdaforums.com/showthread.php?t=1172885

how to install kernel v22

download the ARC-DooMKernel-v22_boot.img

& modules ARC-DooMKernel-v22-modules_CWM.zip

save the ARC-DooMKernel-v22_boot.img in the folder with the fastboot files

save the modules ARC-DooMKernel-v22-modules_CWM.zip to sdcard on phone

power down device

start device in fastboot mode by holding down menu button and plugging in usb cable at the same time, note a blue light should come on at the phone connection, you need to open fastboot with usb file, now hold down the shift key and right mouse click on a bit of white screen where the files are to open a command prompt, xp start menu system to open and use the cd command to reach the folder location.

you should see something similar to this:

C:\Users\sarah\Desktop\.Andy flash tools\.aaflash root\fastboot_with_Android_USB

_file>

use the following command to flash the new kernel: fastboot flash boot ARC-DooMKernel-v22_boot.img

reboot phone and enter recovery, To enter clock work mod recovery: you must power off device and hold the volume up key with the power button, this should boot into clock work recovery, if it doesnt you need to open fastboot with usb file, now hold down the shift key and right mouse click on a bit of white screen where the files are to open a command prompt, xp start menu system to open and use the cd command to reach the folder location.

At the command prompt, enter: fastboot boot recoveryARC.img THEN PRESS ENTER.

you should see something similar to this:

YOU SHOULD SEE SOMETHING LIKE THIS:

C:\Users\sarah\Desktop\.Andy flash tools\.aaflash root\fastboot_with_Android_USB

_file\fastboot>fastboot boot recoveryARC.img

downloading 'boot.img'...

(bootloader) USB download speed was 19890kB/s

OKAY [ 0.499s]

booting...

(bootloader) Download buffer format: boot IMG

OKAY [ -0.000s]

finished. total time: 0.499s

C:\Users\sarah\Desktop\.Andy flash tools\.aaflash root\fastboot_with_Android_USB

_file\fastboot>

Now your phone will boot up into clock work mod:

Now using the volume keys on your phone goto install zip fron sdcard, hit the power button to select: choose zip from sdcard and find the file ARC-DooMKernel-v22-modules_CWM.zip

1.install the ARC-DooMKernel-v22-modules_CWM.zip for the kernel by pressing power button

2.reboot phone using the volume keys in clock work mod to reboot the phone option

3.you should now have success.note i done thise twice as first time didnt work right as i found the other post instructions for a newbie like myself difficuilt

my next post will be on using setpcu for under and overclocking, have a nice day. Andy

Please touch the thanks box at bottom of post if you found this helpful.