Hacking Problem Saving

[complex209]

somtimes when i play a game like donkey kong country 2 and i try to save it says save failed or when i play metal slug advance and i try to save it says save aborted...........how do i fix this?

edit: my chip is ez 3 in 1

 

[Vague Rant]

There are three different chips that can be used for saving on a commercial GBA cart. Flash carts (like the 3-in-1) only have one of these, so the game has to be patched to save correctly.

I'm guessing you have the EZ-Flash V for your SLOT-1 card? If so, the latest beta of the firmware automatically patches GBA ROMs to save correctly. Alternatively, there's a tool called GBAExpLoader which can be used to write GBA ROMs to the 3-in-1, this also has autopatching. Third option is to patch your games manually, on your PC, using a program like GBATA, which has an SRAM patching option.