Problem:

I got the xhorse mvci pro j2534 cable connected and try to update authorization, but failed, says error “Sync authorization 2 failed! Error code: ff02”

Solution:

[Read Authorization]:  You can read the current device authorization status and available times. (Note: When the number of available times is 0, the use of most functions will be limited)

[Update Authorization] You can update the latest authorization status of the device and reset the available times.

Users have to update both software and firmware to latest versions, then update authorization.