To perform an update, you need to extract the entire “nDriveUpdate” folder to a USB flash drive.
Plug in the USB flash drive, then power the device.
Depending on the version that is on the device, it will say “updating firmware”.
When it gets to the home screen, it’s done.
You can update as many times as you like, nothing will be damaged, just don’t remove power until the update is complete. It takes less than 15 seconds.