So your saying it does NOT matter what the D## is? You can still flash a ROM over the stock D18?
If I wanted to put 2.2 on my phone, all I have to do is literally make a backup, clear everything, and then flash like I did on the Hero?
And some of the kernals are optimized to save battery, yadda yadda yadda.. right?
I think I am getting it.
Sometimes it matters which rom you flash over, sometimes not - it all depends on how the new file is set up - it never matters what you start with if you're doing a FULL Odin flash (because of the full overwrite). For modems and kernels, you need to follow the directions provided with the file (Kernels are *usually* only compatible with certain roms, I believe that is always the case but I'm allowing room for exceptions - I only know so much
)
Update.zip methods are generally much more particular because they're most often designed as an incremental upgrade - they basically only contain the files that changed from the previous version they're intended to flash over (which is why those files are so much smaller than the full .tar... zip compression isn't THAT good, lol)
Regardless, just make sure to read the instructions that come with the particular file you want to use. If they aren't in the download, then they will be in the thread where you found the dl link. If you can't find any instructions, don't use that file, find another one - I can guarantee there are plenty of threads with detailed instructions in this forum.
But the instructions you used for the Hero are essentially correct, you just need to make sure you have all the details straight... again, if you find a rom you want to try, read that thread thoroughly - most, if not all, of the questions you might come up with along the way have already been asked and answered in the thread pertaining to that rom (and many of us, myself included, have gotten pretty irritable about repeatedly seeing the same questions... so please read first, okay? Good...)
And as far as kernels, it sounds like you got the idea well enough
