To update the firmware on your LG phone, navigate to the Systems Updates menu in the phone's Settings menu, select Update Firmware or download the LG Mobile Support Tool, and connect the device to a computer. Both methods require a Wi-Fi connection to complete updates.
Before updating the firmware on an LG phone, back up all phone data using PC Suite or by inserting an SD card into the device and using the LG Backup function in the phone's Settings menu. To update firmware without connecting the phone to a computer, navigate to the System Updates menu in the System Settings category. Select Update Firmware, allow the phone to download, and install any available updates.
To update the firmware using a computer, download the LG Mobile Support Tool from the official LG website. Run the tool, select the model of LG phone that requires updating, and install the driver. Connect the phone to the computer via USB cable, and click Start Updating. Wait for the firmware update to download, and then install it. Do not remove the USB cable until the installation is complete unless requested by the software. Once the firmware has been updated, remove the device, turn on the phone, and confirm the update by navigating to the About Phone section in Settings.