u can download it from anywhere as long as it is stock firmware, so far i recommend u download the KK1 ( from UAE )
This is by far the most stable one and i am using it.

u can refer my guide. regarding the pit file, some said u must use it, some said it is not a must.

in my experience, i always use one, for rom flashing, not for flashing other things like kernel.

just refer my guide, everything is there as long as u can read english..lols

did u joined the FB group of i9100G? people over there are kind of moving slowly and helping each other, u should check it out, quite a nice group eventhough sometimes they speak malay...lols..
https://www.facebook.com/groups/20370338972...=group_activity

stock music seems to be having many bugs, some of it are hang during playing, noisy sound etc.

just try another music player from market, i am using google music myself. simple and clean

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Added on February 21, 2012, 8:33 pm

did u extract/copy the zimage file to the mentioned place?

it should be like this

/sdcard/zImage    ( zImage is a file, not a folder )

usually the rooted kernel (ie superatmos, lucifr, mygkernel) is in a zip/tar form, u need to extract it to get the zImage only

after flashed with ktool, reboot immediately using the reboot button.

just to be sure, do u know where exactly is meant by "/sdcard"

this is not the microsd, this is the internal partition

and did superuser give permissions to ktool when u ran the ktool?

and if possible, use another kernel

like superatmos, this one much updated, use superatmos 2.1 (as 2.2 have some bugs)

or use the new lucifr kernel

i am not into custom rom so far, just modified everything myself, if u really want to ask these thing, go to the fb group i have mentioned above. They are quite helpful and I am there too. but of course real name..haha

As it was told before, only a few custom roms are available for I9100G, any rom for I9100 will result in a ( temporary most of the time) bricked phone, NEVER EVER FLASH AN I9100 ROM on your I9100G, if you read this thread, lots of answers were given when that happen, you should be able to restore your phone without too much troubles.

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Added on February 22, 2012, 12:45 pmI just joined the FB group, looking forward to see if others had the same idea ...
Malaysian rom does have stock google services ?

yes kldoc, all custom rom as far as i know includes the stock google services, it is just that i dont know whether it will work in china or not...

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Added on February 22, 2012, 2:15 pm

if u see my signature, u will see a guide.

just follow the guide..rom u can download from many sources..as long as it is stock..
sammobile,sampro.pl or using checkfus downloader, i am using checkfus, no need to register

http://www.engadget.com/2012/03/08/samsung-galaxy-s-ii-ics/

yay great news. now to wait for someone to make a vanilla version of samsung's rom and i'll flash that.