QUOTE(helload @ Jan 30 2012, 12:03 PM)
Thanks for your answer! what does "flash different RUU" means? Do I really need that?
RUU = rom update utility. normally it is released based on carrier / telco. ie in order for our Asean set to flash US T-Mobile RUU, we need to superCID our phone otherwise it will not work due to different CID (Carrier ID) and MID (Model ID)
if you're only planning to flash gingerbread custom rom, you can skip superCID step.
if you're planning to flash ice cream sandwich custom rom, superCID is required (but optional if you go for an alternative) in order to upgrading the firmware to boot latest ice cream sandwich (3.24/3.25 based)
once you've achieved root access, please backup your stock rom in recovery (this will backup everything, you user data and system data) prior flashing any custom rom of your choice. flashing of any rom (after full wipe) will wipe all the user data / app / contact but your data stores in SD Card is remain untouched.
for flash-holic, you're encouraged to sync your contact to google account or export your contact to your SD Card for easier contact restoring.