Seriously you guys are misinterpreting whats been said, or they misunderstood the question. There is no way anyone is going to assemble a complete pcb around a chip thats had neither wafer level nor chip level testing.
Why is that so difficult for you to accept this concept? If you:
- manufacture something for 300-400 EUR and sell it for 3.000-4.000 EUR,
- and already sold thousands of them,
- and you are in mortal fear of mass refund requests,
how much are you gonna care for a few percent of bad units?