Editing Getting Started (section)

==== Adding your own ROMs to RetroidOS ====

If these instructions don't exactly match the way you've set up your own RP2, you'll already know enough to change those steps on your own, so I'll assume that you're doing this with a unit fresh from the factory.

# Safely eject your micro SD card from the RP2. If you aren't sure how to do that, just turn the unit off completely (not just standby), then remove the card. The micro SD card slot is on the bottom of the unit, under a rubber flap. After you lift the flap (it's NOT a plug that comes out completely), push the card INTO the slot slightly with your thumbnail. It is held in place by a mechanism kind of like a clicky ballpoint pen. Pushing it in slightly until it makes a soft click will cause a spring to push it out so you can grab it easily. Do not use tweezers or any metal tools, as you will probably damage the slot.
# Connect the micro SD card to a computer with a suitable card reader. If your computer tells you that the card must be formatted before use, DO NOT FORMAT THE CARD. There is (probably) nothing wrong with it, and it contains hard-to-replace files that are required by Retroid. If you see such a message, try using a different card reader, or a different computer.
# On the computer, copy any ROM files you want to transfer into the "/games/download/" folder on the micro SD card. This might also be a good time to make a backup of the files that came on the micro SD card with the RP2, in case something happens to the card later. Once the copy is complete, safely eject the micro SD card from the computer.
# Reinsert the micro SD card into your RP2. Push it into the slot until you hear a soft click; this will be a little further in than flush with the edge of the slot. Don't forget that the micro SD card should be inserted with the face (printed side) down (away from the screen side), and the back (plain black side) up (toward the screen side). If you switched the RP2 off, turn it on again. If it is in Android mode, switch to Retroid mode.
# In the Retroid system, hold the "HOME" button until the system menu appears.
# Move the highlight to "Enter game settings" with the d-pad or left thumbstick, and then press "A" to select it.
# Move the highlight to "External games management" with the d-pad or left thumbstick, and then press "A" to select it.
# Using the controls shown on the right side of the screen, select a game to add to the Retroid's game menu.
# A window will pop up, asking you to choose an emulator for this game. Move the highlight to the appropriate emulator name with the d-pad, and then press "A" to select it. Only the short emulator core names are shown, so if you can't figure out which emulator is the correct/best, you may need to do some research. [[Emulators#Emulation_within_RetroidOS|This list]] may help.

Your game should now be available from the Retroid game menu. If you have finished adding games, press "Y" until you get back to the main game menu. Enjoy!

NOTE: Some people have commented that game files must not be zipped. These instructions have only been tested with a regular (uncompressed) Super Famicom game. There may be additional issues with using zipped files or multi-file games (e.g. bin/cue disc images). Also, this process will not work without the RetroidOS files present on a normally-formatted (i.e. not Android "internal storage") microSD card, even though RetroidOS will appear to be working normally otherwise.