Yeay I can finally speak. I have been watching this thread for days because no one was activating my new account. I have a 337 model neo geo x. Anyways I have tested the game sd card in many different file systems and none of them are able to mount it. I have tried it on mac windows and linux file systems. I have also even made a img of the card and put it on another sd card I have and it wont work. None of the hex editors, or data recovery tools I have used could find anything intelligent on the drive. Whatever they are doing it is very secure so far. I tried opening my neo geo x and couldn't get the board off the screen part, am I missing something? Also when I put it back together I almost lost a spring that went flying across the room D: for some strange reason my neo geo has been missing a left side screw ever since I got it idk where it went. I also have a non sdhc micro sd 2gb card that I could test out and make a backup img of the internal card if I can get the board out. I wonder what is preventing us from using other sd cards in the game slot. On the 370 model you should be able to un-solder the memory chip and use the previously mentioned pin-out guide to wire the points to the sd card slot, then use a img someone uploads of the internal sd card, write it to a sd and use that to access system files. So from my understanding the internal sd card has no file protection on it? This seems like it could be easy to change out the system files to something we want then. There is a picture floating around somewhere of the 370s chip let me try to find it. I do not believe the neo geo x has already been so easily hacked as many people would love to believe. I think this due to the fact that we have 0 hacks for any of the new versions of the console yet and even with the old versions all you can do is replace a rom with one of a smaller size or use the unibios and even this requires opening the unit every time, something not easily done for everyone. We still don't have our custom software running on it and we cant play games off the sd slot yet. The only chip memory you can access on the 370 model so far is the 1Gb fat partition via a usb cable to the console. I also looked through the update file with a hex editor and found some interesting things about it and using some other open source software it probably shouldn't be using...