Is safe rooting possible after upgrading to 2.3 GB?
That depends on how you define "safe".
Rooting, whether it is before or after upgrading to 2.3 voids guaranty. But nothing bad will happen will happen to your phone just because it is rooted. Rooting gives you access to the otherwise restricted root folder. So before you root your phone, since you cannot access this folder, you cannot actually damage the phone software. But after rooting, you can (for example) uninstall system apps and while most of them are just trash, some are actually needed for the phone to work.
As long as you know what you are doing, rooting is safe. Even after you root, you can always undo the root in case there is a problem with the phone and you need to take it to the service center. Just make sure you dont leave any evidence of rooting behind.
Thanks a lot. Can I use gingernreakv1.20apk? for rooting?
Yup. I used gingerbreak.
did you install a stock 2.3.3 from LG? that one won't work with gingerbreak or a lot of other rooting methods.
No, I didn't install stock 2.3.3 from LG. Gingerbreak seems working for many but not for mine. Any other reason or method?
Which firmware version and android version are you using now? IF you are using version 2.2.1 (the version which was originally installed on the phone), you can use z4root.
What happens when you try to root with gingerbreak? Does the phone restart?
Try connecting the phone to a computer via a usb cable with usb debugging on and then rooting.
Its like the command prompt in DOS. You can download Terminal Emulator or Root explorer from Market
Gingerbreak is not working, I tried four times the process goes for more than 15 minutes. I installed gingerbreak and start rooting after I ticked the option debugging in Applications. What could be the cause?