Hi, Today I received a gamebox advance I ordered on Aliexpress. It's made by a company called EXEQ and it came with a "Game 999 in 1" cartridge which, according to the seller, contains 453 unique games. The cartridge contains about 50 GBA games, the rest is just NES titles running on PocketNES, though. The cartridge works fine on the Gamebox and my regular GBA SP, so it is a regular GBA cartridge. The Gamebox console works fine with the cartridge as well. Also, regular GBA cartridges work just fine as does my old Flash2Advance cart. A Supercard Mini SD boots as well, but you can not see the menu, although you can navigate the menu (blind basically) and launch and play games. my EZFlash IV micro SD does not boot at all. does someone know how I could get the EZ IV to work on this device? alternatively, is there a chance to repurpose the 999 in 1 cartridge as a flash cart? I have an NDS and tried using GBAExploader as well as the Flash2Advance linker and software, both didn't work. Anyone got any ideas?