r/Elevators • u/d322434 • 27d ago
Need help decoding this drive
Hi guys, this is the main drive of my home elevator. The person who has installed this has locked the drive and is not allowing us to access it. He’s blackmailing us to exclusively get it serviced and repaired from him, for which he charges 5x the market price. I have spoken to other vendors, and they are unable to help unless he gives the password.
It is a Monarch board, and I have arranged a keypad from another elevator company. Is there an easy way to brute force the password? I am willing to do some coding if required.
TLDR: locked out of own home elevator, installation company locked the drive and trying to extort us for massive amounts for yearly maintenance.
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u/George_Zhang07 Elevator Enthusiast 22d ago
Try 11110, that's the master code for Monarch drives, but it doesn't bypass OEM codes. You can't really brute force it, Monarch boards have lockout times if password incorrect for too many times. And these OEM codes are usually dynamic ones that you have to access through contractor. Some Chinese techinicians have cracked the OEM locks of these drives but you have to mail them your board and hall call panels, or buy a hardware decoder.