Hi there everyone! I have 2 problems... Yesterday my brother received his M3DS Real. He immediately upgraded his firmwate to the latest version which is V2.7b. After upgrading he wanted to try out his new Kingston 1GB made in Japan microsd card and so he ran Castevania DOS. The intro was stuttering a lot near the end. He asked me for help. I checked the memory card with HD Tach and got the following results: Random access: 0,6 ms Average read: 10,5 MB/s Everything seems fine here. Next I tested the memory card with my CycloDS. The intro plays flawlessly. So obviously the memory card is fine. I've also read in different forum threads that teh M3DS Real is supposed to play games smoothly even with slower cards. So my question is what could be causing the stuttering? Is it the 2.7b firmware, is the M3DS Real cart defective or is it the microsd card somehow? I've tried formatting the memory card with FAT and FAT32. I don't know what else to do so I came here for help. Also I received my M3 Lite with passcard at the same time. I installed the v35 manager on my pc and upgraded the firmware to the latest version (v35) by copying the files to the root directory of my microsd card. After the upgrading process which was successful I copied Castlevania POR and a few gba games (FF I & II, Golden Sun and Tetris Advance) to the microsd card. I used software reset for Castlevania POR and for the gba games I used Real Time Save and Hardware Support 1. All the files are shown in the root of my microsd card. I put the microsd card in the M3 Lite and put the passcard in the slot-1. After a passcard logo I get the M3 Lite menu. I choose game and select Castlevenia POR. The game starts fine and plays without any problem. It even plays C POR flawlessly on the microsd card that the M3DS Real had problems with. After this I softreset and get back to the menu after which I turn off the DS. I remove the passcard to enter gba mode. When turning on my DS I get the default DS menu and I see that a gba card is loaded in slot-2. I boot from slot-2 and get the gameboy advance logo. But after this nothing happens. I just get 2 black screens. I turn the DS back on with the passcard and get back in NDS mode. From here I try to access GBA mode by pressing start. Again I see the gameboy advance logo after which I get 2 black screens. I bought the M3 Lite to play gba games but at the moment I just can't seem to get it working. I've tried consulting the gbatemp tutorial but without success so far. I'm definitely doing something wrong but I don't know what. I'm new at this so detailed information is appreciated.