Is there a GBA utility to backup/edit saves on GBA cartridges?

[CZroe]

One such utility could be loaded through the link port or hot-swapped (Memory resident programs can be loaded from cartridges, as the e-Reader's NES emulator prooves).

It could support saving and restoring 4k EEPROM, 64k EEPROM, 1mbit FlashRAM and 256k SRAM image dumps.

Does such a utility exist? If one exists for N64, Obsidian's (OBS) Evek III, then surely the GBA must have such a utility!

I need to know so I can show Nintendo a proof-of-concept for a GCN/GBA link feature... but first I need to show that I can unlock something in a GBA game this way.

Of does content loaded through the link port not have the ability to access the cartridge slot at all? I know it forces the link port into some special low-bandwidth mode with high encryption overhead. Well, scratch that. Some flash carts flash through the link port.

 

[dman]

there are flashcarts and such for xferring games and saves to/from your computer but they use the cart port.

 

[CZroe]

Yeah, and their save management is restricted to the SRAM and emulated EEPROM/FlashROM on a flash cart.