LG KF350 hard reset

Select Menu > Settings > Reset settings - Select this to reset your phone to its default configuration. You are requested to
enter the security code.
NOTE : Security code
The security code protects the unauthorized use of your phone.
The default security code is set to ‘0000’ and the security code is required to delete all phone
entries and to activate the Reset settings menu. Also, the security code is required to enable or
disable the phone lock function to prevent unauthorized use of the phone. The security code default
setting can be modified from the Security > Change codes.

If your LG KF350 frozen, take out battery and reinsert it.
LG KF350 reset

 

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 KF350 hard reset with buttons / keys pls leave comment.

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.