You refer to 'your ROM' but I was never able to successfully extract my ROM for you.
To whose ROM do you refer?
Brian
To whose ROM do you refer?
Brian
Here are the results. Your ROM has a different checksum than the PowerBook 100 as well as some startup code differences. Which is surprising since Apple says they are identical to the point the 100 has to have a special ID bit in a VIA chip to differentiate it for software installation.I actually don't know if it's upgraded or not. I don't see a model number anywhere on the device. There's a notice on the bottom indicating that it hasn't yet been approved by the FCC and is not available for sale. (This is different than the common models that say that it's a demo unit and not available for sale.)
It is possible that your backlit is a pre-release ROM prototype. In which case it might also be the ROM replacement on the ROM card for the backlit display upgrade. That is the reason I want to see the ROM from that as well as the production backit.
One other note of mention is that your ROM is identical in the SCSI implementation with the 100, which means the Portable can do SCSI disk mode. I then found an Apple tech note confirming that a third party cable product made that possible. however it is not clear whether it refers to all Portables or just the backlit models. Only analysis of the original Pprtable ROM will confirm this - HINT HINT