After witnessing the fall of the DS, DSi, 3DS and PlayStation Vita, it's no surprise to hear that the Neo Geo X has succumbed to the talents of the homebrew community, but it is a little shocking how easy the handheld was to conquer. Upon cracking the device open, enthusiasts were surprised to find no copy protection to speak of -- just a lightly glued MicroSD card. The folks on the Neo Geo forum wasted no time experimenting, and soon found that the handheld's Bios and game ROMs can be successfully swapped for new games or custom loaders. Substitute files need to retain the name of the file they replace, and swapped games remain mislabeled in the Neo Geo X menu, but the trick has already allowed some users to install the popular AES Unibios. The community hopes that the discovery will eventually allow them to tweak the handheld's TV-out resolution and enable manual switching between AES / MVS game modes. It's hardly a "hack," considering the SD card is completely unprotected, but it's a good start. Check out the source link below to peer at the device's insides, or just to watch the community in action.
Tommo Neo Geo X Gold