1. Unzip the downloaded ROM to a folder
2. Prepare a MicroSD card
3. Use SP27213.exe tool to format the mircoSD
--> in FAT32 type 2nd
--> copy all the files to the the micro SD card
4. Insert the SD card to LT500T/H
5. Then insert the battery.
6. After that power on the LT500T/H, it will update the system automatically.