Hello, colleagues!

I'm currently dealing with an issue while repairing a Concord Infinity elevator. The microcontroller P87C51SBPN used in the control board has failed, and I need the original firmware dump in .bin format to replace it with a new processor.

What I've done so far:
• Diagnosed the issue and confirmed the microcontroller is the root cause of the problem.
• The original processor is beyond repair, and I wasn't able to extract the dump.
• Reached out to the manufacturer (Savaria/Concord), but I haven't received a response yet.
...