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

Performing a System Update Using 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.
  1. Connect the device to a host computer using a USB-C cable or by inserting the device into the 1-Slot USB/Ethernet Cradle.
  2. Go to
    Settings
    .
  3. On Android 11, touch
    System
    Advanced
    Developer option
    .
  4. On Android 13, touch
    System
    Developer option
    .
  5. Slide the
    USB debugging
     switch to the
    ON
     position.
  6. Touch
    OK
    .
  7. If the device and host computer are connected for the first time, the
    Allow USB debugging?
     dialog box with the
    Always allow from this computer
     check box displays. Select the check box, if required.
  8. Touch
    OK
     or
    Allow
    .
  9. On the host computer, navigate to the
    platform-tools
     folder and open a command prompt window.
  10. Type
    adb devices
    .
    If the device number does not appear, ensure that the ADB drivers are installed properly.
  11. Type
    adb reboot recovery
    .
  12. Press
    Enter
    .
    The System Recovery screen appears on the device.
  13. Press
    Volume Up
     and
    Volume Down
     to navigate to
    Apply upgrade from ADB
    .
  14. Press
    Power
    .
  15. On the host computer command prompt window type
    adb sideload <file>
    .
    where: <file> = the path and filename of the zip file.
  16. Press
    Enter
    .
    The System Update installs (progress appears as a percentage in the Command Prompt window) and then the System Recovery screen appears on the device.
  17. Press
    Power
     to reboot the device.
If you are not able to enter Android Recovery mode through the adb command, see Entering Android Recovery Manually.