D7_0.7z

Android-based operating system files for the tablet.

Use 7-Zip or a similar utility to extract the contents. D7_0.7z

Vehicle-specific data for over 100 brands. Android-based operating system files for the tablet

Insert the card into your XTOOL D7, power it on, and follow the manufacturer's prompts to "Update from SD Card." power it on

If possible, backup your current "XTOOL" folder from the device's internal storage before overwriting files.