LG Optimus L80 D373 hard reset using buttons

LG L80 D373 Hard Reset LG D415 Factory Reset Dual SIM Andorid phone
Unlock forgotten password on your LG L80 phone. If you forgot your PIN or Password, you need to perform a hard reset. If your phone freezing or working unexpectedly it needs to be restored to its original condition, use a Hard Reset to initialize your phone. Back up your important data!

1 Turn the power off.
2 Press and hold the Power + Volume Down Key on the phone.
3 Release the Power only when the LG logo is displayed, then immediately press and hold the Power Key again.
4 Release all keys when the Factory data reset screen is displayed.
5 Press the Volume Key to scroll to the desired option, then press the Power Key to confirm.
lg optimus l80 d373 hard reset

or LG L80 Dual SIM Android factory reset from menu

To reset your LG Optimus L80 D373 Dual SIM Android phone to factory settings and erase all the data on your phone, touch Menu > Settings> Backup & reset > Factory data reset > Reset phone.

Factory data reset – Reset your settings to the factory default values and delete all your data. If you reset the phone this way, you are prompted to re-enter the same information as when you first started Android.

OR
You can use LG Mobile Support tool to repair your LG cell phone, after download select menu Customer Support > Recovery Phone (D373)

LG Optimus L80 Safe mode

Using Safe Mode To recover your phone when malfunctioning.

1 Turn off your phone and reboot. When you see the T-Mobile animation press and hold the Volume Down Key until the phone reboots. Your main
screen will then be displayed with the words “Safe mode” in the lower left corner.
2 From the Home screen, tap the Menu Key and tap System settings > General tab > Apps.
3 Tap one of the available tabs at the top of the screen and select the application you wish to uninstall.
4 Tap Uninstall and OK to confirm.
5 After uninstalling the application, turn off and reboot your phone

Reset LG D373, reset LG L80,

General advice: Before you buy a new cell phone or new tablet, please try the following procedure to repair your device in a software way. First charge your battery, backup your important data if possible and in most cases take out SIM and SD card before doing factory reset. It is impossible to recover your data after doing a hard reset, so online backup is always important. For all of your data, a backup should be done on an external device, hard drive, raid system or media. With or without insurance, if your cell phone lost, damaged or stolen at least your invaluable data is backed up in a safe place. If you are about to sell your phone and you want to wipe your personal data, or if your phone affected with virus you have to do a hard reset. In some cases, you can delete the forgotten password or lock pattern from your device as well. All information is for devices with stock based ROMs. If you are using rooted device, always back up your EFS folder first, containing your IMEI info, etc.! Please also note, that a hard reset operation will not unlock your mobile phone's SIM lock or network lock, but it will remove the unlock pattern, remove the user password or PIN password (NOT the SIM card's 4 digit PIN code). Also note that the firmware version will not be affected in any way, it will not be downgraded, it will remain the same you are using and if you have rooted your device, root privileges remain also unaffected.