If you want to update the software on your mobile phone, it's recommended you back up the phone memory.
Go to www.lg.com on your computer.Find the download section on the website to download LG PC Suite.Download and install LG PC Suite.
Connect the data cable to the phone socket and to your computer's USB port.
Slide your finger down the display starting from the top edge of your mobile phone.Tap the USB icon.
Tap Media device (MTP) until the function is turned on.
Start LG PC Suite on your computer.
Click Back up/Restore device.
Click Start Backup.
Click Start.
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