My Launch X431 proS mini keeps reminding error “Disaccording between the software serial No. and smartbox serial No., please download and upgrade again or contact local dealer.” when trying to do a DPF regeneration from special function for a Nissan Juke 2013, and an oil reset for a BMW X4 2015.
The Launch X431 V device displays error as below:
“The serial number of the smartbox does not match the serial number of the selected diagnostic program, update the display program or contact the after-sale service.”
Please find out and delete “cnlaunch” file in file management.
The error prompt has gone away, problem was solved!