Originally Posted by joel.maxuel
I am assuming you already have Slim Bean installed. Here's the thread to download:
To update, all you really need to do is download the final image, save it to the SD card, flash it with CWM/TWRP then clear the dalvik cache.
Don't think there is a need to flash gapps as well since you are not factory resetting in this case. Unless your current version of Slim Bean is not 4.2.x, then you will need gapps (and even then a factory reset would be recommended).
If you are looking to install from scratch, the guide above (in my previous post) is pretty standard (looks to be the same was what is provided in the link).
I plan to use these steps but I'm confused if you use a kernel for gb rom and with slimbean or when flashing in cm 9
Coming from Froyo(2.2) Gingerbread(2.3) or ICS(4.0)
Obtain CWM, this can be done using Jscotts Odin back to stock (Follow instructions and use SGS kernal flasher to obtain CWM)
Run Qksters IMEI backup script here
Make certain you are on ICS, this can be done by flashing Entropy's CM9
It is recommended now that you remove your SD Card
CWM: Wipe Cache / Factory Reset
... The package will start to install..
... Phone will reboot into the install screen again...
... Continue to install [Automatically] If not manually flash again
... Phone will reboot again and be at the recovery screen...
CWM: Wipe Cache Partition
CWM: Advanced/Wipe Dalvik Cache