I received my EZ-Flash IV 2 days ago, and it had firmware already loaded onto it. (Not sure if that's normal or not) But I noticed that all of the messages that popup when you first turn it on are in Chinese, and all of the videos I've watched about it are all in English. In the top right hand corner it says "[SD]V1.720",(I'm guessing that's the firmware I'm on) I'm not sure how old that is. I ask this question because I want to know if its safe to flash a newer firmware to the EZ-Flash IV with an older firmware already on it? I planned on downloading the latest firmware update from here: http://filetrip.net/f4753-EZ4-Client-2009-04-03.html and placing the .bin from that zip file on the root of my mini-SD card, and hold down the R button while the GBA is booting up. I want to make absolute sure I'm not going to brick the EZ-Flash IV. Also, anyone here know of compatibility issues with the firmware I'm currently on and the two GBA games Teenage Mutant Ninja Turtles and Teenage Mutant Ninja Turtles 2 - Battle Nexus? Those are the only two GBA games that won't run on my EZ-Flash IV. Every other GBA game I have loaded on there works fine, except those two. Will updating the firmware of my EZ-Flash IV help fix that problem?