**This tutorial applies to the previous OS update with the default emulators. For PicoArch emulators, BIOS files now go into _FunKey/.picoarch/system/_ folder.**

Most retro-gaming console software emulators are able to run game ROMs
directly.

However, the Game Boy Advance an PS1 emulators do require an
additional BIOS file in order to emulate all or some of the game ROMs.

## GBA

If you launch a GBA game for the first time, you will get this screen:

![GBA BIOS](/assets/images/GBA_BIOS.png)

This means that you will need to install on the **FunKey S** a BIOS
file with the right name, size and MD5 checksum before you can
actually play.

- BIOS file name: gba_bios.bin
- MD5: a860e8c0b6d573d191e4ec7db1b1e4f6

### Installation procedure

| **Display**                                                                     | **Action**                                                                                                                  |
|:-------------------------------------------------------------------------------:|:----------------------------------------------------------------------------------------------------------------------------|
| ![Connection PC](/assets/images/Connection_PC.png){.lightbox}                   | Connect the **FunKey S** to your computer using the provided micro USB cable, then open it to turn it on                    |
| ![RetroFE](/assets/images/RetroFE.png){.lightbox}                               | At the launcher's main screen (example here with RetroFE), press the <i class="funkey-menu"></i> key                        |
| ![Mount USB](/assets/images/Mount_USB.png){.lightbox}                           | Press the <i class="funkey-up"></i> or <i class="funkey-down"></i> keys until you see "**MOUNT USB**"                       |
| ![Mount USB Are you sure](/assets/images/Mount_USB_are_you_sure.png){.lightbox} | Press the <i class="funkey-A"></i> key twice to confirm                                                                     |
| ![Eject USB](/assets/images/Eject_USB.png){.lightbox}                           | "**EJECT USB**" is now displayed instead, now go to your host computer and open a File Explorer window                      |
| ![USB Drive](/assets/images/USB_Drive.png){.lightbox}                           | You should see the **FunKey S** appear as an USB drive on your computer in the File Explorer (example here with Windows 10) |
| ![Copy ROM](/assets/images/Copy_GBA_BIOS.png){.lightbox}                        | Drag & drop the _**gba_bios.bin**_ BIOS file into the _**Game Boy Advance/bios/**_ folder in this USB drive on your computer      |
| ![Eject Drive](/assets/images/Eject_Drive.png){.lightbox}                       | Eject cleanly the USB drive from your computer                                                                              |
| ![Eject USB Are you sure](/assets/images/Eject_USB_are_you_sure.png){.lightbox} | Back on the **FunKey S**, at the "**EJECT USB**" menu entry, press the <i class="funkey-A"></i> key twice to confirm        |
| ![Unmount USB](/assets/images/Mount_USB.png){.lightbox}                         | Press the <i class="funkey-menu"></i> key to return to the launcher screen                                                  |

## PS1

As for the GBA, if you launch a PS1 game for the first time, you will
get this screen:

![PS1 BIOS](/assets/images/PS1_BIOS.png)

This means that you will need to install on the **FunKey S** a BIOS
file with the right name and size before you can actually play.

BIOS file name: SCPH1001.BIN

### Installation procedure

| **Display**                                                                     | **Action**                                                                                                                  |
|:-------------------------------------------------------------------------------:|:----------------------------------------------------------------------------------------------------------------------------|
| ![Connection PC](/assets/images/Connection_PC.png){.lightbox}                   | Connect the **FunKey S** to your computer using the provided micro USB cable, then open it to turn it on                    |
| ![RetroFE](/assets/images/RetroFE.png){.lightbox}                               | At the launcher's main screen (example here with RetroFE), press the <i class="funkey-menu"></i>                            |
| ![Mount USB](/assets/images/Mount_USB.png){.lightbox}                           | Press the <i class="funkey-up"></i> or <i class="funkey-down"></i> keys until you see "**MOUNT USB**"                       |
| ![Mount USB Are you sure](/assets/images/Mount_USB_are_you_sure.png){.lightbox} | Press the <i class="funkey-A"></i> key twice to confirm                                                                     |
| ![Eject USB](/assets/images/Eject_USB.png){.lightbox}                           | "**EJECT USB**" is now displayed instead, now go to your host computer and open a File Explorer window                      |
| ![USB Drive](/assets/images/USB_Drive.png){.lightbox}                           | You should see the **FunKey S** appear as an USB drive on your computer in the File Explorer (example here with Windows 10) |
| ![Copy ROM](/assets/images/Copy_PS1_BIOS.png){.lightbox}                        | Drag & drop the _**SCPH1001.BIN**_ BIOS file into the _**FunKey/.pcsx/bios/**_ folder in this USB drive on your computer              |
| ![Eject Drive](/assets/images/Eject_Drive.png){.lightbox}                       | Eject cleanly the USB drive from your computer                                                                              |
| ![Eject USB Are you sure](/assets/images/Eject_USB_are_you_sure.png){.lightbox} | Back on the **FunKey S**, at the "**EJECT USB**" menu entry, press the <i class="funkey-A"></i> key twice to confirm        |
| ![Unmount USB](/assets/images/Mount_USB.png){.lightbox}                         | Press the <i class="funkey-menu"></i> key to return to the launcher screen                                                  |

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