Lemuroid does not typically require a separate BIOS file for 3DS emulation because it uses a built-in HLE (High-Level Emulation) mode through its Citra core. Unlike older systems like the PlayStation or Nintendo DS, which often need specific firmware files to boot, 3DS games on Lemuroid are designed to run "out of the box" once you point the app to your ROMs. How to Play 3DS Games in Lemuroid To get your games running, follow these steps:
Here is how to correctly set up BIOS files for Nintendo DS in Lemuroid, which will also clarify why 3DS isn't supported. lemuroid 3ds bios
No, you do not need a separate BIOS file to run Citra. Citra uses HLE for most system functions. However, for some specific games with anti-piracy checks or for improved compatibility, you may need to dump your 3DS’s system files (boot9.bin and boot11.bin) along with a sdmc (SD card) NAND dump. This is an advanced process that requires a modded 3DS console. Lemuroid does not typically require a separate BIOS
What is Lemuroid?
Encrypted ROMs: Standard ".3ds" files dumped directly from a cartridge are often encrypted and will not work unless you have the matching "aes_keys.txt" file from your own console. Step 2: Do You Need a BIOS for Citra