Software update for the ZTE Maven (Z812)
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Software update for the ZTE Maven (Z812)

Latest update
Getting started
Update & verify software
Previous updates

Latest update

The updates

  • What's new: Android device security updates

The details

  • Release date: July 26, 2018
  • Android version: 5.1
  • Security patch level (SPL): April 5, 2018
  • Baseband version: Z812H01
  • Build number: Z812V1.0.0B29
  • File size: 25MB

Getting started

  • You can download the update via Firmware Over the Air (FOTA). 
  • You must connect your device to Wi-Fi to download the update.
  • Although there should be no impacts to settings or data, we recommend that you back up your media files to an SD card, a PC, or using a favorite application, prior to upgrading the software.

Update & verify software

To update the software
  1. Make sure your device is fully charged and connected to Wi-Fi.
  2. From the device home screen, swipe down on the Notifications bar with two fingers and tap the Settings icon.
  3. Tap AT&T Software Update.
  4. Tap Check for updates.
  5. Follow the on-screen prompts to download and install the update.
  6. The device automatically restarts once the new software successfully installs.

To verify the software update
  1. From the device home screen, swipe down on the Notifications bar with two fingers and tap the Settings icon.
  2. Scroll to and tap About Phone.
  3. The device has the latest software if the Android version, Baseband version and Build number match the current update details.

To troubleshoot the software update

Previous updates

DateDetails
Dec. 12, 2017
  • What's new: Android device security updates, including KRACK Wi-Fi vulnerability fix
  • Android version: 5.1
  • Security patch level (SPL): November 1, 2017
  • Baseband version: Z812H01
  • Kernel version: 3.10.49
  • Build number: Z812V1.0.0B27
  • Previous versions required: Z812V1.0.0B26
  • File size: 34.93MB
Sept. 11, 2017
  • What's new: Android device security updates
  • Android version: 5.1
  • Security patch level (SPL): August 1, 2017
  • Baseband version: Z812H01
  • Kernel version: 3.10.49
  • Build number: Z812V1.0.0B26
  • Previous versions required: Z812V1.0.0B25
  • File size: 21.73MB
June 19, 2017
  • What's new: Android device security updates
  • Android version: 5.1
  • Security patch level (SPL): June 1, 2017
  • Baseband version: Z812H01
  • Kernel version: 3.10.49
  • Build number: Z812V1.0.0B25
  • Previous versions required: Z812V1.0.0B24
  • File size: 20MB 
March 21, 2017
  • What's new: Android device security updates
  • Android version: 5.1
  • Security patch level (SPL): March 1, 2017
  • Baseband version: Z812H01
  • Kernel version: 3.10.49
  • Build number: Z812V1.0.0B24
  • Previous versions required: Z812V1.0.0B23
  • File size: 18MB
Dec. 12, 2016
  • What's new: Android device security updates
  • Android version: 5.1
  • Security patch level (SPL): November 1, 2016
  • Baseband version: Z812H01
  • Kernel version: 3.10.49
  • Build number: Z812V1.0.0B23
  • Previous versions required: Z812V1.0.0B22
  • Hardware version: wuzA
  • File size: 40MB 
Sept. 30, 2016
  • What's new: Android device security updates
  • Android version: 5.1
  • Security patch level (SPL): September 1, 2016
  • Baseband version: Z812H01
  • Kernel version: 3.10.49-gb65561
  • Build number: Z812V1.0.0B22
  • File size: 40MB
  • Previous versions required: Z812V1.0.0B20
  • Hardware version: wuzA 
June 7, 2016
  • Security enhancements
  • Software Version: Z812V1.0.0B20
  • Baseband Version: Z812H01
  • Kernel Version: 3.10.49
  • Build Number: Z812V1.0.0B20
  • File Size: Up to 37MB
Dec. 10, 2015
  • Software Enhancements
  • Android Patches
  • Software Version: Z812V1.0.0B19
  • Baseband Version: Z812H01
  • Kernel Version: 3.10.49
  • Build number: Z812V1.0.0B19
  • File Size: 168MB

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