mikep wrote:IIRC the "easy" reset didn't work (no relay clicks) -
Hm.. I do have the relay clicks on power cycling, does that indicate that Installer Lockout is enabled, or the opposite?
From some googling I got the impression that clicks = Lockout is enabled, but people on the internet can often be confused.
K-Man wrote:1) Yes, if you're an electrical engineer you should be able to unsolder the EEPROM and create a jig to read back the contents via I2C. But then what? You'd be looking for an unknown set of 2-4 bytes in a 64K haystack.
2) All DSC panels fit in the same footprint within the "can". But you can't buy that one, it is a NEO and not supported. You need a Power panel like the PC1832.
This is all good advice, thank you! PC1832, or PC1616 (only has 6 zones?), check. I just looked quickly on Ebay and there seems to be a few available.
(I thought (somewhat naively perhaps) that the EEPROM used to store the configuration was the same as the firmware chip, and that somehow only part of the EEPROM was electrically erased/re-written on a configuration change.. that one is in a socket and there are cheap USB based programmers/readers on Aliexpress. Wrt the byte location the very loose plan was to read, change a few of the access codes, read again, compare what was changed, and then make some sort of guess.)