Hi im brand new to GBAtemp but ive been softmodding my wii and stuff for a while now.
Im having issues as well with MPT, here is my process and my idea for a solution, maybe someone smarter can figure out how to solve it.
I made a backup of MPT on my DVD+R DL 8.5 GB disk.
I also have made a backup of Super Smash Bros Brawl on the same type of disc.
I run the game through NeoGamma R8 with ios249.
Brawl works completly fine and i can even load Brawl+.
MPT works great too, that is, up until I select which game to play. When i load my save file and choose any three games, it shows the loading screen, then goes green and reboots to the wii system menu. No error codes or anything. (it does the exact same with my USB loader)
My suggested solution has to do with the IOSs. Since MPT has several .dols on the disk, it loads the default, then when you select the game it points back to the DISK Channel IOS to find the correct dol, i.e. it looks for corruption.dol(or whatever it may be called). The problem is, the disk channel cannot read your usb drive or your backup disk because you arent running the original disk, your running it through IOS249(or whatever your using).
I believe a solution would be to replace some code in a file of the IOS to force the disk to point to a different IOS of your choice when it needs to find the specific ios. If anyone knows how they might be able to do this, it could help (if its possible). Ill be researching it more as well.
Sorry if this has already been solved somewhere else... but please do let me know.