Upgrade Zebra handheld with Android OS (TC52x)

1. Download the upgrade file(s) from zebra.com. This the home of the upgrade files: https://www.zebra.com/us/en/support-downloads/software/operating-system/tc52x-operating-system-for-gms-devices.html

2. You need two upgrade files in this order (you must have login credentials to Zebra.com which is free of charge):

1. HE_DELTA_UPDATE_10-12-13.00-QG_TO_10-16-10.00-QG.zip
2. HE_DELTA_UPDATE_10-16-10.00-QG-U138-STD-HEL-04.zip

3. Copy these files to a simple directory, I use D:\Temp folder.

4. Start a command prompt and navigate to the folder where these two zip files are.

5. Check the connectivity of your device by command: adb devices

You should have ADB tools installed on your laptop: platform-tools_r33.0.1-windows.zip (https://developer.android.com/studio/releases/platform-tools)

6. Enable USB debugging (Recovery mode needs the USB debugging enabled on the device.)

• Go into Settings app
• Enable USB debugging (click 7 times on Settings / System / About)

• Enable File transfer (Swipe down the notifications, click on Android System - Charging this device via USB twice, select the option File Transfer)

7. You should go into recovery mode by command: adb reboot recovery

8. When device rebooted in recovery mode, the volume up and down is for navigating in the menu, and Power is for selecting an option.

- Navigate to "Apply upgrade from ADB" then select it. Select appropriate item: Full or Diff OTA package.

9. Start the download on the PC with command: adb sideload HE_DELTA_UPDATE_10-16-10.00-QG-U138-STD-HEL-04.zip

The filename can be different, when you start typing the filename, you can extend it easily by clicking the TAB key.

10. At the end your upgrade successfully downloaded, you can reboot the device.