Originally Posted by PattyNYC
Your problem is not from rooting. You may have inadvertently messed up something in your system partition. Try to lg flash tool back to stock.
⬆⬆⬆⬆ Rooting cannot break knock on. I would try
1. Make sure it's on and toggle it either way
2. Factory reset after making a LG backup and dragging that file over to your computer. Then reset and drag the file back To the LGbackup folder on your phone. Restore from backup and the whole process shouldn't take more than 5min and you're phone will be exactly the way you had it setup still.
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