In this video tutorial I will show you how to restore original firmware on LG Leon H340n using LG Mobile Support Tool app.You can use this operation if your phone doesn’t power on or if you have various problems with the phone software.
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To do this you need a PC or laptop, internet connection, micro USB data cable, Lg drivers and LG Mobile Support Tool software.
You don’t need that the phone to be power on but you must put your phone in Download Mode.
First, you need to install Lg drivers on your computer.
After the restore is complete, I recommend a reset to your phone to factory settings,
Link for LG Mobile Support Tool:
How to enter in Download Mode on LG Leon 4G LTE H340n:
How to HARD RESET LG Leon 4G LTE H340n:
Warning! You do this at your own risk! Make sure your phone battery is fully charged!
Better remove the SIM card and memory SD card from your phone before this operation!
If you reset or update your phone, all your data may be lost, so it’s good to do a full backup before! .