Where can I get an updated BootROM file for my V1910-24G Switch?

[BrucekConverge]

These are switches that still have the 3COM signage on them -- but they are relatively new -- and I want to update the firmware to the latest version, but the release notes for the latest firmware requires a much newer version bootrom than is on these (currently version 119 --version 151 or higher required).  Now, I may be missing something, but I just can't seem to find an updated bootrom file to install in our switches, though I can find the "application" firmware easily.  What am I missing?

[Richard Brodie_1]

It's all included in the one file; it's not clear to me that it is a prerequisite. Usually it's a bit more explicit, if you can't upgrade directly. However, if you want to be cautious, you could install intermediate versions of the firmware first.