LG Vu Plus LG GR700 hard reset
LG Vu Plus hidden Test mode menu

To display the LG Vu Plus GR700 hidden Test mode menu do the following:

Enter 3845#*700# on dial screen
Now Test Mode is displayed. Select LG Gr700 Factory Reset option. Note: all seetings and data will be deleted!
Wait until "Restauración de fábrica en curso" 100% done.

lg vu plus gr700 factory reset

lg vu plus gr700 hard reset

LG Vu Plus LG GR700 factory reset from menu

Another way to reset the phone settings and reset the LG GR700 phone back to the original factory state is to navigate in the menu to the Settings.

Menu > Settings > Reset Settings
This function allows you to restore factory settings. To do this, you need the security code.
Master Reset: Restores the settings (e.g.: Audio, Display, Language, Date & Time, Bluetooth Settings) stored in the handset memory to default values.

Master Clear: Deletes downloaded or user created contents (e.g.: images, videos) from the phone and the external memory card.

Phone
- Deletes all downloaded or user Images, Videos & Sounds from the phone memory.
- Deletes personal information stored in the handset memory (e.g.: address book, messages, tasks, alarm, Calendar schedules) to default values.
- Restores the settings stored in the handset memory to the default values.
Memory Card: Deletes all contents from the external memory card.

Use the Memory Card function in the Settings menu (Menu > Settings > Phone > Reset > Settings > Master Clear > Memory Card).
Format external memory using Mass Storage.

or

You can use LG Mobile Support tool to repair some LG cell phone model, after download select menu Customer Support > Recovery Phone

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.