While not strictly a BIOS, the Nintendo DS core (MelonDS) uses and a firmware.bin . Lemuroid does not require these by default—it uses a built-in HLE BIOS. If you experience touch screen calibration issues, you can place bios7.bin , bios9.bin , and firmware.bin in the system folder, and the core may use them.
or (scoped storage depending on Android version):
Bios are not detected/used on Android 13 · Issue #693 - GitHub lemuroid bios files
Have more questions? Check the official Lemuroid GitHub repository or the Libretro documentation for advanced core settings.
Lemuroid's detection of BIOS files can vary depending on your Android version: Place Files While not strictly a BIOS, the Nintendo DS
First, you need the BIOS files themselves. For the PlayStation, the core is region-specific. You will need the appropriate file for the games you intend to play. The most common and stable files are:
: Ensure gba_bios.bin is placed in the designated folder and restart the app. Frequently Asked Questions Where can I legally download Lemuroid BIOS files? or (scoped storage depending on Android version): Bios
Q: What are Lemuroid bios files? A: Lemuroid bios files are firmware files used to initialize and configure the hardware components of a console.
The add-on CD systems for Sega require region-specific BIOS files to handle the CD-ROM drive initialization. (Required for European Mega CD games) bios_CD_U.bin (Required for North American Sega CD games) bios_CD_J.bin (Required for Japanese Mega CD games) Game Boy Advance (GBA)