GBA Utility Tools is a small application for the GBA. Currently it can dump the BIOS, test the Real Time Clock, perform a button test, and perform a sound test. The author hopes to eventually add more features.
How to use the bios dumper said:Follow the on screen instructions and the bios will be dumped to SRAM. Once that is done take the .sav file and drag it on the GBABiosFixer program. The program will produce a bios that can be used in emulators that need it.