In December I ordered two EZ Flash IVs. The first one loaded fine. It went to the menu in Chinese and I updated it to the latest kernal and then put all my ROMs on it. I then passed it onto my brother. I've just attempted to do the same with the second EZ Flash IV. I suspected something was wrong from the start as when you put the cartridge in it did not go past the GameBoy loading screen. I suspected that maybe this one didn't have the firmware on it yet and the other had came with it pre-installed. So I went through the same process again, but I still cannot get past the GameBoy loading screen. This is despite the fact that I am using a brand new 32GB Sandisk MicroSD card. What do you think is the issue? I've tried the paper trick and it didn't change anything. The other cart that worked properly loads fine even if you put in a 64GB card, so I don't think this is an issue about the micro SD card itself. Is there anything else I can try? Perhaps a reset method or something. Thanks guys.