Step1: Copy the upgradefile to the root directory of the U disk, and then rename the upgrade file 

to "hiworld_can_app.iap", and Insert the U disk

Step2: Click All app icon

Step3: Click “VehicleSetting”

Step4: Click “Factory settings”

Step5: Enter the password(the initial password is 8317)

Step6: Click "Automotive type"

Step7: Choose “HIWORLD - CAN - IAP升级 - high version-Apply”, confirm to restart

Step8: Go to "VehicleSetting" on the main screen,  and Click “About Automotive”

Step9: Click CAN version，when the host recognizes the U disk，the Can upgrade interface will pop up.Click OK.

Step10:When the progress bar finished，a prompt will appear“Can upgrade success！Please restart”