1. Application Deployment
  2. Android System Update
  3. Performing a System Update using Wireless ADB
  • TC21/TC26/TC21-HC/TC26-HC Touch Computer
Performing a System Update using Wireless ADB

Performing a System Update using Wireless ADB

Use ADB to perform a system update.
Go to the Zebra Support & Downloads web site at zebra.com/support and download the appropriate System Update package to a host computer.
Ensure the latest adb files are installed on the host computer.
The device and the host computer must be on the same wireless network.
  1. Go to
    Settings
    .
  2. On Android 11, touch
    System
    Advanced
    Developer options
    .
  3. On Android 13, touch
    System
    Developer options
    .
    If
    Developer options
     does not appear in the advanced system settings on your device, perform the steps in Enabling Developer Options.
  4. Slide the
    USB debugging
     switch to the
    ON
     position.
  5. At the prompt, tap
    OK
    .
  6. Slide the
    Wireless debugging
     switch to the
    ON
     position.
    1. If the device and host computer are connected for the first time, the
      Allow wireless debugging on this network?
       dialog box with the
      Always allow on this network
       check box displays. Select the check box, if required.
    2. Touch
      ALLOW
      .
  7. Touch
    Wireless debugging
    .
    The
    Wireless debugging
     screen displays.
  8. Note the IP address and Port on the
    Wireless debugging
     screen.
  9. Touch
    Pair device with pairing code
    .
    The
    Pair with device
     dialog box displays.
  10. Note the Port on the
    Pair with device
     dialog box. It will be different than the one on the
    Wireless debugging
     screen. The IP address will be the same.
  11. On the host computer, navigate to the
    platform-tools
     folder and open a command prompt window.
  12. Type
    adb pair XX.XX.XX.XX:XXXXX
    where XX.XX.XX.XX:XXXXX is the IP address and port number from the
    Pair with device
     dialog box.
  13. Press
    Enter
    .
  14. Type the pairing code from the
    Pair with device
     dialog box.
  15. Press
    Enter
    .
  16. Type
    adb connect XX.XX.XX.XX:XXXXX
    where XX.XX.XX.XX:XXXXX is the IP address and port number from the
    Wireless debugging
     screen.
  17. Press
    Enter
    .
    The device is now connected to the host computer.
  18. Type
    adb devices
    .
    The following displays: 
    List of devices attached          XXXXXXXXXXXXXXX device
    Where XXXXXXXXXXXXXXX is the device number.
    If device number does not appear, ensure that ADB drivers are installed properly.
  19. Type:
    adb reboot recovery
  20. Press
    Enter
    .
    The System Recovery screen appears on the device.
  21. Press
    Volume Up
     and
    Volume Down
     to navigate to
    Apply upgrade from ADB
    .
  22. Press
    Power
    .
  23. On the host computer command prompt window type:
    adb sideload <file>
    where: <file> = the path and filename of the zip file.
  24. Press
    Enter
    .
    The System Update installs (progress appears as percentage in the Command Prompt window) and then the System Recovery screen appears on the device.
  25. Press
    Power
     to reboot the device.
  26. On the host computer, type:
    adb disconnect
    .
If you are not able to enter Android Recovery mode through the adb command, see Entering Android Recovery Manually.