The PBI ROM seems closely tied in with the BIOS menu... unless the BIOS menu itself is also optional.
I can't speak for Candle of course but here's my take on the subject:
BIOS Slot obviously is not optional as the BIOS is the core of this whole hardware, on the other hand I can't see how and where the PBI Rom is closely tied into the Setup Screen. The only mention of it is where one sets the SIDE PBI Id, but that's SIDE and not the PBI itself. My understanding is that the PBI BIOS might and can be loaded outside of U1MB unless of course the PBI ROM is also included in and controlled by the BIOS of U1MB (which does not seem to be the case)
Technical documents leave a lot of questions unanswered, and as of this date U1MB Upgrade IMO remains to be in the realm of hardware hackers as far as updating the Roms are concerned. I tried this software to be as user friendly as possible with minimum possible damage to the device when one tries to upgrade it. For example checking for the BIOS signature when loading a BIOS Rom is IMO mandatory to prevent bricking the device. I haven't seen that check done in other ROM Generators. This may be due to the lack of documentation and/or the lack of communication between Candle and other developers (myself included)
. We need more info on how a "Guaranteed" signature check can be done (I have some ideas that will work unless the whole BIOS is rewritten but of course we still need offical approval)
. A developer's Guide
would have been a invaluable asset to all involved. Bits of information is available here and there but a serious work can not be based on heresay.
One other thing is the availability of the flasher software, again we have never heard an official announcement other than that "it should not be released as it is, seeing that people can screw things up". But that's what happens when information is not readily available and people are left to draw their own conclusions. I simply hope that this great device gets it's well deserved Technical Support very soon.
Edited by atari8warez, Sun Sep 9, 2012 2:17 PM.