Out of curiosity I opened the 6.35 OFW with a hex editor. I found the only human-readable information in the file was the version string. So I modified it to 6.38 (something higher than the 6.37 OFW I am running). At that point the PSP did actually think that there was an update available. When the updater runs it says that the update is corrupt. I assume this is because the file stores some form of md5sum inside the archive package.
My question is: Is there a way to repackage 6.35 as 6.3x?
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