Before you buy a new cell phone or new tablet, please try the following procedure to repair your device. First charge your battery, backup your important data if possible and in most cases take out SIM and SD card before 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.
LG GW300 hard reset
Dial 1809 # * 300 then selet Factory reset Resetting your phone Use Reset settings in Settings menu to reset all the settings to the factory definitions. You need the security code to activate this function. Menu >Settings > Reset settings
Resetting your phone Use Reset settings in Settings menu to reset all the settings to the factory definitions. You need the security code 0000 to activate this function.
You can use LG Mobile Support tool to repair some LG cell phone model, after download select menu Customer Support > Recovery Phone
If you know LG GW300 hard reset with buttons / keys pls leave comment.
LG GW300 soft reset - restart your phone
If your phone has frozen, just take out battery, then reinsert it. Restart your phone.