Brinks BHS2000D Hack

[Nomen Nescio]

If the programmer displays L on the screen, The panel is locked out.
Replace the chip or use an external serial programmer to erase it.
Then press 255 + 1 and see if that reloads the defaults.

Angry Man In Gauteng

 

[Slob]

What? No hack? No back doors? What fun is that then? If you look hard
enough, there are back doors into everything.

Just like that 16 year old kid that found the back door to the Apple
iPhone. The iPhone is probably 1000 times more complicated than any
Brinks panel. Wouldn't you agree?

yea but it disabled the phone on the next software upgrade.