Sir, we can send the software for the EPM240T100C5. But need an expensive tool to program the CPLD software.
You can consult with your seller to return factory for repair or repalce it.
Go, then to throw the oscilloscope, to get the software will be impossible.
I put a new crystal of 100 MHZ and nothing remains the same.
Without glass the buttons obey something.
With a 50MHZ crystal it worked for about 2 minutes and then it locked again.
I have ordered an EPM240T100C5.
To continue repairing.
I do not know where to get the software for the EPM240T100C5
Greetings and thank you.
If the problem is the same the YouTube video.
Maybe the chip (U702) is fault. The model of the chip is EPM240T100C5. And it need to be burned CPLD program.
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