i found the address but not going to test it out.

use 010editior open up the TMD file look at the address crap just give me a sec and i'll give you the PIC of the address

http://img84.imageshack.us/my.php?image=sy...lversionyb1.jpg

the 122 equals 290

and i also looked on a USA 3.2u firmware
and the code is 121 equaling 289

so i'm pretty sure thats it

i'm pretty sure changing that code to 12C would give you version 300 like you want

 

Not sure of the format myself, I just opened up the TMD, which normally in a IOS.wad around this location is were the IOS Number code is located and the code that tells the wii were to install the IOS, just figured the system menu Version might also be close in the same location and i think it is. So what are you planning on gaining from doing this,

Not sure how to check the version if you changed it or not, mably by using anytitle deleter, I think it might give the system menu version but not sure


Update: you see that IE above the 122 code in the pic thats the address to change to tell the wii which IOS the system menu runs off of

hea and the little bit of code after the IE is the code that tells the wii were to install the system menu wad,LOL i could make the wii install the system menu as a VC Game.lol I more than likely would get a system files corrupt if i done that though.lol

This is all best guess though

 

convert 122 HEX to Decimal

And never deinstall a system menu, Could possible make the system lock up, and re-installing over the system menu, does get rid of it.

122=290 3.2E
121=289 3.2u

and so on, i check both system menu wads, and its correct 3.2u has 121=289 and Pal 3.2e has 122=290

 

What exactly do you mean by file removing,
If your talking about the system menu, i would never uninstall, wouldn't even try. just installing over it, removes it? that is if i understand your question?

Is that how IOS work? What do you mean

 

Now that i'm pretty sure you would be correct, cause the TIK or TMD can't remember which is what tells the wad manager or however your removing it, what files to delete so if you add files straight to your wii, i dont think you would be able to remove them? I think, not sure, But i do know regular method of removing or copy over them should not work, to remove the files

UPDATE here the same Method works on IOS's here is a IOS13-64-v10 and here the location for its, Version Address also
here the PIC

http://img102.imageshack.us/my.php?image=iosversionse4.jpg

and the address 0190h were you see the 0D is the IOS Number which equals 13 so by changing this number you should make the IOS13 install has any IOS you want, you tell it works by it lets say you change the 0D to FF and save the TMD now pack it up, into a wad, next time you unpack it, you'll notice the folder will now be 000000FF instead of 0000000D so i know this method works,
Well I hope i help ya