ive just got my dsi two weeks ago. everything turns out well..install the official firmware.play few games happily untill my micro sd suddenly cannot be read.(tried to read it with several PCs but failed) i think it is broken ... so..i bought a new micro sd. and tried to use my acekard again.with the official firmware unfortunately..when i tried to open it. it shows a black screen with"error occured..refer to the dsi manual and bla bla bla" message.. i dunno what to do please help me!! does this have anything to do with my firmware? ok .my firmware is 1.4.1(accidentally updated it while trying to set the internet.) can anyone here help me??