You said black screen, completely black or part only? How the dealer can even try to calibrate, having the black screen, or they have replaced CVPM? Once CVPM was calibrated, it doesn't need to be re-calibrated. Either camera is gone or CVPM itself, may be fuse. Read this thread, You will understand how the system works. If You can't find good dealer in Australia, fix it by Yourself. System is not complicated, calibration is tricky. Not all of us were able to calibrate from the first attempt.
Somehow You had before working 360 view even with the lift.
