A few days ago we received a case sharing from a customer about the solution to "VVDI PROG read NEC3529 prompts 'Adapter invalid' ".
Customer's problem: I tried to read the NEC3529 using the XDNP82 adapter and the software still tells me that the adapter is invalid, look at the picture.
all contacts are ok, also on FLMD 3.3V
Later, the customer found the problem himself and successfully solved it:
Problem solved!
The adapter does not work at a voltage of 12V.
The voltage on the power supply must be at least 12.5 V.
Thanks to Jan Sima for sharing with us.
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