@RFI-EMI-GUY: China wants everything back now. Now they know how strong they are and what sort of a resource level they have right now. So they are trying to push everything aside and gain anything they like
Probably the issue would have become apparent with a detailed functional examination of the circuit, which it seems must have been what the consultant did. But not adequately understanding a system, the WHOLE system, is indeed an easy way to have some quite bad results.
It is very important for people to test whatever invention they come up with so that they never have to be placed in the situation of dealing with the actions of the innovations failing. This is something that even the simplest of innovations require so that people know what to expect. You should consider yourself lucky that it was tested before being used out in the filed. Even the best of experts should always test their innovation so that they can stay assured that they never missed even a single part. It is only through this that the big mistakes can be avoided.
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