root LG F180L not working

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i tried Xda thread for rooting LG optimus G korean but didn't work and didn't get superuser and when i check if phone rooted or not by app market unfortunatly not root please let me know how to root this

android 4.1.2
karnel 3.4.0
software F180L20I

20l still can be rooted.use this.
http://forum.xda-developers.com/show....php?t=2112190
however,f180s 20g can't be rooted.damned lg fixed this backboor again.

Originally Posted by wangzhiqiang

20l still can be rooted.use this.
http://forum.xda-developers.com/show....php?t=2112190
however,f180s 20g can't be rooted.damned lg fixed this backboor again.

root work great but now the phone won't start after shotsown

any idea what to do??

so your phone can't start now?

Originally Posted by wangzhiqiang

so your phone can't start now?

when i hit power on it comes the black screen with LG logo only

please if you know anything let me know.

is there any solution if i put the phone on download mode?

you should wipe this phone.perhaps it will work.