Hi prannk, I rooted with LGPwn instaled busybox X and artas's L9RecoveryInstaller_1.5.0.apk then followed cmahendra's guide http://forum.xda-developers.com/show...8#post46842388
I already was on an european open JB (upgraded from original ICS via PC) installed omap4boot drivers and unlocked at the first try.
Hope this will help you.
Someone's got it after a lot of attempts, I hope you can too.
Cheers. Good luck.
Sent from my LG P76020L-EUR-XX unlocked and rooted