Originally Posted by Datafiend
I just ordered an G2 and when it arrives I want to install CM10.2. I have a quick question. When installing a new rom will it delete any backups that I made previously? If so, is there a way for me to store the backup of my stock LG rom/ui on my PC for safe keeping. Any help would be greatly appreciated.
You can make a nandroid backup which you can store on your phone's SD card or on your computer. This requires a custom recovery, however, thus meaning that you will have backup of a stock, rooted device with custom recovery.
Remember to back up your EFS partition too.
You can download your stock (and unrooted with stock recovery) .kdz here
EDIT: You can install TWRP without root
Sorry for misleading informations!
Just replace YOUR IMEI with your actual IMEI