Faulty Atomos Ninja V

So I bought this Atomos Ninja V a couple of years back for a very important project. After that project was over (after shooting for 2 days), I stored it back safely and forgot about it. Recently I took it out and updated to the latest firmware 11.14 and found out that the fan was spinning at top speeds without slowing down, nothing that I would do inside the Power>Cooling option would work and sent it to Atomos to have a look. They informed me that the motherboard is faulty and I will need to replace the motherboard for which I will have to pay approximately 500USD. A product that has been used just once or twice is now having a faulty motherboard. Isn’t there any kind of quality check? I am pretty sure that I got a faulty/defective product to begin with. This is such a horrible thing and unacceptable by any means. Anyone else here had this issue and a similar experience? How did you guys solve it?Knowing it has a problem i really don’t want to sell it to anyone without telling them the truth and I am not sure if anyone in their right senses is going to but it after knowing it’s issue. I am stuck with a freaking expensive paper weight.