Well, one last thing to share. I got some MX29LV040 chips and can confirm they work with the FirmTek firmware too, but since those chips are not compatible with the WiebeTech flasher you will need to use the DOS flasher and a FreeDOS boot disk to put the initial flash image onto them.

So again, for clarity: if you want to use the FirmTek firmware, you need one of these three chips that I know of:

• Pm39LV040
• MX29LV040
• Am29LV040B

The only one I can find readily available is the MX29LV040 which also happens to be the one not compatible with the WiebeTech flasher :-( Maybe my next task will be to figure out how to patch the WiebeTech flasher (if possible) to make it compatible with that chip. Dunno.