How to Register CAR FANS C800 Posted on June 2, 2018June 3, 2018 by wp-admin CAR FANS C800 how to register ? Blew the detail Steps: Step 1. check the link: http://download.znjskj.com/en Step 2. Tap the “Register now” as shown below: Step 3. Input your Serial number and Register password, tap “Next” to continue. Finished Posted in Heavy Duty Diagnostic Tools and tagged C800, CAR FANS C800, CAR FANS C800 Heavy Duty, CAR FANS C800 truck scanner, CARFANS C800, CF C800.