firmware versions on different brands?
If possible, obtain the latest firmware versions from your projector vendor. Failing that, I’ve had a report that X1 firmware can be loaded on the Toshiba MT100. So it is likely that OEM’d code versions identify themselves to the firmware flashing program as being either an X1 or SP4800 (depending on which code the OEM’d version is based on). So those with OEM’d projectors should be able to keep up with the latest X1 or SP4800 code versions directly from InFocus without having to worry about their projectors becoming firmware orphans. (However, be aware that unless you have access to original firmware files from your OEM, you will not be able to restore your projector to the original firmware with your OEM’s logo after loading standard X1 or SP4800 firmware.