What to Do When a DS Game Icon Appears — Need Context

"DS game icon" could mean several things. Clarify:

• On DS/3DS home menu: Game card inserted, DSiWare/3DSWare installed, or cartridge contact issue (clean contacts).
• On PC (emulator): ROM loaded, shortcut created, or frontend (RetroArch, Twilight Menu++) showing art.
• On flashcart menu (R4, AceKard, etc.): Game detected on microSD — press A to launch.
• On phone (DraStic, MelonDS, etc.): Tap to start; long-press for options.

Common Issues

• Icon appears but won't launch → bad dump, wrong region, missing BIOS (3DS), corrupted save.
• Icon missing → rename .nds/.3ds file, refresh DB, check folder path.
• Multiple icons → duplicate files, clone entries.

Reply with: device, emulator/flashcart name, icon appearance, what happens on tap.