In order for GBARunner2 to load titles, a dump of the GBA BIOS is required. Newer builds of GBARunner2 (which come with the latest release of TWiLiight Menu++) have Normatt’s Open Source BIOS built-in. Because it is not an exact copy, including a dump of the official BIOS increases compatilbity. You can dump an official GBA BIOS with one of the following methods.

Dumping Guides #

After dumping the BIOS, it must be renamed as bios.bin and then should be placed in sd:/_gba/ for GBARunner2 to read it.

You can verify that your BIOS is a proper dump by comparing it with the following checksums:

CRC32: 81977335 MD5: a860e8c0b6d573d191e4ec7db1b1e4f6 SHA1: 300c20df6731a33952ded8c436f7f186d25d3492 SHA256: fd2547724b505f487e6dcb29ec2ecff3af35a841a77ab2e85fd87350abd36570