ddj_800 QUANTIZE

hello, I have a ddj-800 3 months ago and it turns off abruptly and the QUANTIZE flashes on, it crashes and the program stops, reset the pc and install the latest controller firmware and there is still a problem, the technical service tell me they will charge me to repair it and I think that the problem is internal to the controller, that is, it is from the factory, it is not a problem of use, and they come with this several failures.