I'm truely sorry if this has been kicked around alot, but all I've seen is "Flashing" the memory, and things like changing the version number. Well, I thought that perhaps the PSP Linux project might have found some exploits, even though they can't get Linux to run; we're trying for Homebrew, which is a *little* bit different than Linux, am I correct? . Anyway, they were trying out a technique that I hadn't seen on this forum (they didn't have success, but they aren't going for the same thing we are) and I thought I'd bring it to the developers' attention. Now, you are going to have to use your imaginations on this one, because they are trying to get a Linux boot kernal to run, as opposed to an Emulator, or other home brew software of that type. Not only that, I sort of got the impression that some of the developers on this forum are a little more familiar with the files involved (PSAR, things like that) than they are at PSPLinux.
Linux PSP proposed technique
Once again, I am truely sorry if this is just impossible, and has been proven so; but I looked this over and was intrigued by the possibility of a 1.51 hack.
(PS. I don't think they are actually using a 1.51 in this example, but perhaps we could build off of this?)