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Operation Cell Phones Last Updated 05/16/2018

The latest software for the LG G4 T-Mobile is Android 6.0 Marshmallow , software version H81120x.

To check what version of software is installed on your device:

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

  2. Tap Software info.

  3. View the current software under Software version.

Select software for more info:

    • Wi-Fi Calling Fix
    • KRACK
    • Android Security Update (2017-04-01)
    • E911 timer fix
    • Android Security Update (2017-01-01)
    • Android Security Update (2016-11-01)
    • Google security patches
    • General maintenance
    • Google security patches
    • General maintenance
    • Android 6.0 Marshmallow Software Update
    • T-Mobile Video Calling Support added
    • General maintenance
    • Security updates (including Stagefright)
    • General maintenance
    • Anti-Rollback added
    • General maintenance

Software Update

  1. When the software update is available, the update icon will display in the status bar at the top of the screen. Swipe down from the top and tap the notification.


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

  1. Your device will restart to perform the update.

  2. When the update is complete, your phone will restart and transition through a series of alerts stating Android is upgrading.


If your devices has not updated, you can manually check if a new software update is available.

  1. From the Home screen, tap Apps  > Settings  > General tab > System updates

  2. Tap Check for new system update to manually check for a new update.

  3. You will be prompted if a new software update is available, tap Download now. Continue from Software Update, step 1.

To download LG Bridge select your operating system:

  1. Connect your mobile device to your computer with a USB cable.

  2. On your mobile device, tap the USB notification in the notification panel.

  3. Tap Media device (MTP) if not already selected. Media device (MTP) must be selected before LG Bridge opens.

  4. Open LG Bridge, then from the Software update tab click Software update button to check for an available update.

  5. If a software update is available, select Start to update your mobile device.

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