hey guys. i have horrible news for people that own R4Is. the newest update 1.4.3 has blocked R4Is DSTTs and all empty flash cards! SO DONT UPDATE!. if you do update when you try to use the r4 it will say somthing like "error please push and hold power button and read DSI manual for info" it will say somthing like that its horrible isn`t it? i think the only way to fix the error is to get a 1.4.3 updated R4I i will keep googleing and youtubeing the problem to see if theres a nother way to fix it.