2001 Bugeye. Afternoon gents, I have the following problem:

-1 sigma M30 works intermittently as a contact is loose. This is the only way I can disarm the car

-the spare sigma flashes, but doesn't disarm

-my keypad flashes but my PIN doesn't work

-I've tried reprogramming to a new PIN with the old message I found below but it doesn't work.

Do I need to replace the whole alarm box and 2 keys, with some ebay gear?

Is there an updated method to override the PIN on the Sigma M30 system, when I can get my one functioning key to work?

Thanks for advice. The old girl is dying….

Repost:
A. Using a working Radio Key:
- Arm and then Disarm the system using a working Radio Key.
- Within 30 seconds of disarming, type into the keypad- *17856*92*wxyz*wxyz# (where wxyz is your new PIN code)
- Arm the system with the Radio Key
- You should now be able to disarm the system using the new PIN code

B. Using the current PIN Code (if a working Radio Key is not available):
- Arm and then Disarm the system using the current PIN
- Within 30 seconds of disarming, type into the keypad- **abcd*92*wxyz*wxyz# (where abcd is your current PIN code and wxyz your new PIN code)
- You should now be able to arm and disarm the system using the new PIN code