wiki/pages/_en-US/gbarunner2/bios.md

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en-US wiki gbarunner2 GBA BIOS Info Information on the GBA BIOS and how to dump it

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 TWiLight Menu++) have Normatt's Open Source BIOS built-in. However, because it is not an exact copy, using a dump of the official BIOS increases compatibility. You can dump an official GBA BIOS with one of the following methods.

Dumping Guides

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

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

GBA/GBA SP/Game Boy Micro/Game Boy Player:

  • CRC-32: 81977335
  • MD5: a860e8c0b6d573d191e4ec7db1b1e4f6
  • SHA-1: 300c20df6731a33952ded8c436f7f186d25d3492
  • SHA-256: fd2547724b505f487e6dcb29ec2ecff3af35a841a77ab2e85fd87350abd36570

DS/DS Lite/3DS Family:

  • CRC-32: a6473709
  • MD5: 1c0d67db9e1208b95a1506b1688a0ad6
  • SHA-1: c11531d5261006810cdc954bd4bec0afe3187b35
  • SHA-256: 782eb3894237ec6aa411b78ffee19078bacf10413856d33cda10b44fd9c2856b

If you don't know how to obtain a file checksum, you can use an online checksum calculator.