I have the same issue and kendyz has not replied to me. But this past weekend was their holiday so that makes sense.
I was able to disassemble the system enough to get to where the cable goes in behind the LCD screen. However, unless there’s a “trick” to removing that end of the cable, I did not feel comfortable attempting to separate the LCD from the aluminum housing.
I would recommend sending the whole thing in as it’s probably not worth the fear of breaking something by trying to disassemble it. It also technically voids the warranty since you’d have to remove the sticker that covers one of the screws to remove the back plate.
I’ll keep you posted of what I hear (if I hear?) back from kendyz. I intend to send just the screen back since I already have that disassembled unless they can give me some clear cut instructions/pics that would make me feel like I’d be able to remove the other end of the “bad” screen cable.
If they do have a trick that allows me to comfortably do that then I’ll take some pics and upload them to help you out as that way they can just send the replacement cable without us having to send anything back.
Let me know if you hear anything from kendyz on your side.