Refer to Recover a bricked MK802III for requirements, plus you need a micro SD to transfer the update file
- Download the zip file from here
- Unzip the zip file, you will see “update.zip”, copy it to micro SD
- Move the micro SD from your computer to MK802III, it will automatically recognize the update image.
- Follow instructions on the screen to finish the upgrade, this will take 3~5 minutes and the stick will reboot couple of times