Although lacking some instruction. You must have lg support software on PC and drivers installed (Google)
Team royal yup just give her royal glacier 1.2 . Apply it right over the stock rooted rom without wipes.... make a backup of course
I was rooted on the stock rom for about a week or so with no problems. I recently flashed the royal glacier rom on top of it without any wipes and everything has been great full functionality fora few days now..... sorry to hear of your problem .....