Hacking Homebrew [Release] AGB_edit: Edit/dump GBA VC injects & auto sleep on lid close

[BETA215]

Yea, also TWPatch has an AGB_FIRM mode that patches AGB_FIRM. This app (AGB_edit) edits the CIA, while TWPatch edits the firmware itself, each with different features. So they have different uses.

 

[Chupi]

Yea, also TWPatch has an AGB_FIRM mode that patches AGB_FIRM.

Wait, what? How do I access this?

 

[GBAGamer33]

I'm trying this out and getting an error on any extraction or edit. Any idea?

The system cannot find the specified path

 

[Chupi]

I'm trying this out and getting an error on any extraction or edit. Any idea?

The system cannot find the specified path

This error most likely means it can't find one of the accessory programs it needs. Did you extract the whole zip including the progfiles folder? If you haven't installed a zip program, Windows likes to open zip files as if they're folders. But then if you run an exe that's inside the zip, it extracts just the exe to a temp folder.

Make sure you have the progfiles folder from the zip in the same folder as agb_edit.exe. Progfiles should contain 3dstool.exe, ctrtool.exe and makerom.exe.

If that doesn't fix it for you, please paste the couple of lines above the error, since those will say what it can't find.

 

[GBAGamer33]

This error most likely means it can't find one of the accessory programs it needs. Did you extract the whole zip including the progfiles folder? If you haven't installed a zip program, Windows likes to open zip files as if they're folders. But then if you run an exe that's inside the zip, it extracts just the exe to a temp folder.

Make sure you have the progfiles folder from the zip in the same folder as agb_edit.exe. Progfiles should contain 3dstool.exe, ctrtool.exe and makerom.exe.

If that doesn't fix it for you, please paste the couple of lines above the error, since those will say what it can't find.

Okay, I figured out a workaround. The problem was it didn't work to drag CIAs to the executable (this is on Windows 11). Command-line worked, though.

Thanks a lot for this tool. I've been playing my GBA games on an emulator handheld recently (RG351P) and while I've been enjoying the crisp screen and highly portable form factor, I don't love the ergonomics and games like Rhythm Tengoku really suffer.

I'd finished quite a few games on my 2DSXL, but I kept getting frustrated with the washed out colors. I never imagined this could be fixed. It looks close to what I remember the SP 101 looking like.

 

[Chupi]

It looks close to what I remember the SP 101 looking like.

SP 101 is exactly what I wanted the default setting to look like. I consider that the canonical, optimal appearance for most GBA games even though some/many of them were designed with over-saturated colors to compensate for the duller screen of the original GBA. No idea why Nintendo made these weird dark washed out linear color filters after creating AGB_FIRM with a lookup table that's capable of proper gamma correction.

 

[IceBlueLugia]

So does this make it press L+R+start or anything when you open the lid to take it out of sleep mode? How does that part work?

This is amazing by the way