FAQ and troubleshooting

GBA/DS games/DSiWare/Smash Bros/Monster Hunter 4 fail to start

You haven't configured Luma3DS to work with your boot manager, please refer to this for instructions.

Loading my payload results in a black screen

Your payload is out of date. You can get the latest version for Decrypt9/EmuNAND9/GodMode9 from their respective GitHub release pages and an updated CtrBootManager9 from here.

I have issues with GBA/DS/DSiWare games and I have installed a patched AGB/TWL FIRM cia in the past

There have been some reports of pre-patched AGB/TWL FIRMs interfering with Luma3DS' built-in patching. Follow these steps to restore the unpatched Nintendo FIRMs:

1. Get the NAND FIRMs package from here
2. From the package, copy O3DS AGB.cia and O3DS TWL.cia (if you have an Old 3DS), or N3DS AGB.cia and N3DS TWL.cia (if you have a New 3DS) to the SD card
3. Open your favorite cia installer (the guide has been tested successfully with FBI 2.1). If you don't have one it's outside the scope of this guide, check how to get your first cia installed on Plailect's guide
4. Install the .cia files you copied in step 2
5. Luma3DS should now be functioning normally, you can delete the .cia files you used

I have a different issue

Make sure you've read this wiki and then report it in the GBATemp thread.