1. Connect the USB cable from your PC to the device.
2. On your PC you should see REMOVABLE DISK appearing in the File Explorer. copy the CFE-TC70-K-xx-001803-x-00-01.zip file on storage.
3. Long press power button and select reset option.
4. Keep holding down Trigger button after selecting reset option.
5. Wait till the device boot into recovery mode. Do not release the PTT button.
6. Click on Vol+ or Vol- to navigate and select appropriated storage. Release the PTT button.
7. Click on PTT Trigger to select the option.
8. Click on Vol+ or Vol- to navigate to the CFE-TC70-K-xx-001803-x-00-01.zip file.
9. Click on PTT Trigger to select the CFE-TC70-K-xx-001803-x-00-01.zip file.
10. Click on Vol+ or Vol- to navigate to 'reboot system now' and Click on PTT key to reboot the device.
11. There are two ways to Check the Android Patch Level after install the CFE package in the device,