Software update for the AT&T Z998

Software update for the AT&T Z998

Latest update
Getting started
Update & verify software
Previous updates

Latest update

  • What's changing: Android security updates

  • Release date: August 6, 2018
  • Android version: 4.4.4
  • Baseband version: Z998B01
  • Build number: Z998V1.0.0B24
  • File size: 15.31MB


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.

Update & verify software

To update the software

  1. Make sure your device is fully charged and connected to Wi-Fi.
  2. From the home screen, swipe down from the Notifications bar.
  3. Tap the Settings icon.
  4. Scroll to, then tap About phone.
  5. Tap System updates.
  6. Follow the on-screen prompts to download and install the update.
  7. The device automatically restarts once the new software successfully installs.

To verify the update

  1. From the home screen, swipe down from the Notifications bar.
  2. Tap the Settings icon.
  3. Scroll to, then tap About phone.
  4. The device has the latest software if the Android version, Baseband version, and Build number match the current update details.

Previous updates

Sept. 18, 2015
  • What’s new: Update to Android 4.4.4
  • Android version: 4.4.4
  • Baseband version: Z998B01
  • Build number: Z998V1.0.0B23
  • Software version: Z998B01
 April 22, 2015
  • What's new: Update to Android 4.4 KitKat
  • Android version: 4.4
  • Baseband version: Z998B01
  • Kernel version: 3.4.0-ge347aa9-00214-gffb6bfczte-kernel
  • Build number: Z998V1.0.0B19
  • Software version: Z998B01
  • File size: 597MB
Jan. 14, 2014
  • Device performance
  • Build number: Z998V1.0.0B1
Aug. 29, 2013
  • Device enhancements
  • Build number: Z998V1.0.0B11v

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