So my Datahand Pro II stopped working after a decade of service. I took it over to an electronics workshop to have it checked, and the guy said that the PCB, connections, and other things are all fine. The only thing he could point his finger to was the microcontroller.
ATMEL
AT89C55 24PC
9714
He seems to think that this chip is probably faulty. So as I understand, even if I get a new chip, I'll have to reprogram it. Neither do I have the programs, nor the method by which I can do this.
Any options, anyone can suggest as to what I can do?
Thank you..