Hacking How to tell which version of the 3in1 you have.

[how_do_i_do_that]

It was misleading as to how the M3 group named the bundle at the time. I believe the name at the time was "M3 DS Real perfect bundle" or something similar.

I don't have the SD version or the CF version of the M3 perfect (GBA flashcart, not a GEP). I have the microSD version of the M3 perfect. They should all work the same as a GEP if you use GBA ExpLoader, you might erase your game data in SRAM using GBA ExpLoader. I have used it a few times as a GEP without any ill effects to it operating as a standalone GBA flashcart.

The M3 perfect is not a GEP, but can work like one.

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The reason I listed it as "all versions" is because on the PCB, it suggest that there was more than 1 version of the GEP.

 

[Mamothstard]

Edit : Nevermind my previous comment.
So what would be the best method of enabling all the features of the 3in1? Acekard or Wood?
I'm asking because even with GBAexploader I can't make use of the expansion features.
But I'm using a DSTWO+ so that may be related.
I have no problem flashing PSRAM or NOR though.
Battery is dead yet again and I need to source another replacement but that shouldn't be a problem.

 

[Griizly]

Hi all, I have a v3 3in1 with a SRAM error ( Add=0, S=74, D=80 ) any idea to solve that ?

 

[how_do_i_do_that]

Hi all, I have a v3 3in1 with a SRAM error ( Add=0, S=74, D=80 ) any idea to solve that ?

If your save is getting erased after every reboot, it means you need to replace the battery. Otherwise it really doesn't matter if you get an error or not.

 

[SonicRings]

If your save is getting erased after every reboot, it means you need to replace the battery. Otherwise it really doesn't matter if you get an error or not.

I recall having the same issue all those years ago. Replacing the battery will not help a failed SRAM chip. Even soft-resetting will wipe any progress on any game. My only option was to buy another EZ Flash V 3in1, one with a working SRAM.

 

[how_do_i_do_that]

I recall having the same issue all those years ago. Replacing the battery will not help a failed SRAM chip. Even soft-resetting will wipe any progress on any game. My only option was to buy another EZ Flash V 3in1, one with a working SRAM.

The only limiting factor on a 3in1 is the write limit to the NOR. The RAM is suppose to have nearly unlimited READ/WRITE. I've seen a few people with 3in1's that fail the SRAM test but still work fine. If I would have to guess, the solder contacts probably separated from the PCB, U2 and/or U4. Visual inspection of U3 should be easy since contacts for those are on the sides of the chip.