and all those 20000 chips are guaranteed to work?
i don't know about the failure rate, but i can safely assume not all of the 20000 will be failure-free....i think.
It all depends on the contract, was it for X Working Devices to spec Y, or was it just X Devices with a penalty for excessive defects beyond a certain percentage? We don't know, but it really does not matter.
They have stated "This is enough for the pre-orders and then some", this means that even if there are faulty ASIC's they should have enough for the current orders.
quality from China sucks really hard sorry to say so.
If send specific specs to China to make a batch of bolds metric screws specific measurements,
order 100.000 you be sure that u can thro away 20%.. but he the remaining 80.000 is still cheaper to make over there then produce them in Europe or USA. Quality is no there middle name...