How to convert profile versions

I have a piece of software (EFI Colorproof XF version 4.1) that seems to be very picky about the version of icc profile it uses. It doesn’t want to reproduce paper white unless I’m using a version 2.4 profile. My problem is that I1profiler software creates version 2.1 profiles. I need a way to convert these to version 2.4. Any ideas?

There is little functional difference between V2.1 and 2.4 profiles. Nothing that should alter the paper white rendering. If you have access to a hex editor, change the tenth byte of the profile from 0x10 (hex 10 = decimal 16) to 0x40. Magic - a V2.4 profile!

Thanks. That was info I needed.