Maybe you can put it on a cartoon box and solder the points around connectors so that the microprocessor will connect galvanic efficient, cause failure connections make them freak in output stages. They can even reprogrammed and the whole stuff works as a possessed by devil device. I have the same with my digitally controlled amplifier from Germany.
My mom always agree when I repair radiotelevision machines on a paper, because she believes in cloth like a priest on them stools.
Are those uCs manually possible to change like some Intel processors without pins? I love such uC's.
Greetings From Poland! It's great place to visit again

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