Nope, you'll need the full update and the files are not interchangeable unless you do the M3 to R4 hack also found on
www.Moddz.com. You can interchange the versions of the R4 and M3 Simply with a simple hack! Also, like I said get the image skin templates and full update there too.
FifthE1ement
Hmm, the source of the R4DS->M3S / M3S->R4DS mod is actually
a topic right here on GBATemp and
an identical one on SCdev, posted by me. I didn't figure it out though, I just got the info passed on to me by someone who wants to remain anonymous
PharaohsVizier however almost figured it out by noting the glob of solder on the PCB, as can be read
here on SCdev.
digital_sin has an
interesting theory about this whole M3/R4 thing that makes sense to me:
QUOTE(digital_sin @ Jan 6 2007, 12:29 PM)Here's my theory:
R4 team was payed by the M3 team to rebaggage their SLOT1 card as the M3 simply, and keep it updated like the R4 for a small sum of money(propably 2.5$ extra a piece or something). in simple terms, they buy R4s from the R4 team, put a M3 sticker on them, change the position of the jumper pins, and sell them as their product under their name, hoping that everyone who sees a M3 label on a product will gladly pay 5$ extra for it. That would also propably explain why the M3 team announced on the launch of "their" new product that they're going to release a better one soon(aka M3 diamond or whatever), which means that this M3 was just a filler in the gap that they're going to need to develop "the real thing", just so that they can earn a little money on the side while "the real m3" is in development, and also keep their name in the bussiness without dissapearing for too long. It's propably also why they don't have a website of their own for the M3 Simply.
If my theory is correct then:
1)The R4 is always gonna be the one who gets updated first, then the M3 with the exact same features in the new R4 update
2)You'll never need to switch from one flashcart to the other UNLESS the R4 team stops releasing the M3 version of the firmware for them.
3)If you bought both the M3 and the R4, you've just got punked.