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Operation Cell Phones Last Updated 08/25/2015

We are pleased to announce the software upgrade to P76920h is now available for the LG Optimus L9. This software upgrade includes important bug fixes.

  1. From the Home screen, tap Apps  > Settings  > About phone

  2. Tap Software information. View the current software version under Software version.

  3. If the current software on your device is version LGMS76910e using the OTA (Over the air) update is recommended.


  1. If prompted, connect to a Wi-Fi network to download the software update.

  2. Fully charge the battery.

Note: If your battery is too low the Restart & Install button will not display.  You may need to charge the battery above a certain level and/or plug in to begin the update.

  1. Save any important data before updating the software on your device. Any data not saved to the microSD or transferred to a PC may be erased; i.e. contacts, images, etc. Backup select data on your device using LG Backup.

    Alternately, connect your phone to a PC via the USB cable. After connecting, select Media sync (MTP) mode on your phone. Copy personal folders to your PC. i.e. DCIM (photos, videos), Downloads, Music, etc.

Note: Calling and messaging functions are not available during the update process. The entire upgrade process varies depending on software package size and your internet connection speed.

Software Update

  1. When the update is available, a system udpate icon   will display in the status bar. Swipe down from the top of the screen to open the notification panel and tap the notification to view the available software update.

Note: You may also be notified in a popup that a software update is available.

  1. Tap Restart & install. Your phone will restart and begin the update process.

  2. The device will restart and transition through Optimizing apps # of ##, Starting apps, Upgrading contact database, Upgrading media database, and Finishing boot.


If you have not been notified of an available software update, you can manually check if on is available.

  1. From the Home screen, tap Apps  > Settings  > About phone  > System updates

  2. Tap Check now to manually check for a new software update.

  3. You will be prompted if a new software update is available. Tap Download and go to Step 1 in the Software Update section to continue.

Software Update

  1. Click here to download the LG Mobile Support Tool to your computer, then open.

Note: You will need a PC running:
Windows 2000 (SP4 or later), XP, Vista, 7, or 8
CPU - 1.8 GHz or higher
Memory - 1 GB or higher
Hard Disk Drive - 9 GB or higher available
Administration rights on the PC for software installation
High-speed internet connection

  1. Connect your phone to your PC.

  2. Tap Start Upgrade within the LG Mobile Support Tool to begin.

    1. Device will progress through Analysis, Download, Update and Complete during the update process.
    2. While updating, the device will power off and enter a download mode at 5% completion. This is normal. DO NOT DISCONNECT THE USB CABLE!
    3. At approx 95% of completion, the device will power on. This may take several minutes. This is normal. DO NOT DISCONNECT THE USB CABLE!
    4. If your software update stops before it has completed, please do not close the update tool and try the update again. Additional troubleshooting steps are below.

  3. The tool will notify you when the update is complete. Tap Exit to return to the main screen.

  4. Wait for device to power on. Once powered on, the device will reconnect to the LG Mobile Support Tool. When connected, observe that the version number reflects the latest Software P76920h. It is now OK to DISCONNECT THE USB CABLE.


  1. If the phone software upgrade stopped before completion, please do not close the update tool and try to update again following original instructions.

  2. If you already closed the update tool, and the phone will not turn on normally, please follow the steps below:

    1. Remove back cover and battery.
    2. Record IMEI/ESN/MEID from device label in battery well.
    3. Replace battery and back cover.
    4. Open LG Mobile Support Tool.
    5. Connect the device to PC via USB cable.
    6. From the drop down menu, select Options > Upgrade Recovery.
    7. Enter your phone information and tap OK.
    8. After checking the phone information, it will start to update automatically. If it does not work, the device may require service to attempt recovery.

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