I have an R4i upgrade 1.4 flashcart and it worked perfectly until my little brother upgraded my DSi firmware to v1.4.1E. Now every time I try to play it I get the error message "An error has occured. Press and hold the POWER button to turn the system off." I have tried a few different versions of a couple of firmwares and I wanted to know if there is a working R4 firmware that supports this update and that is compatible with my flashcart? If not, is there any way to upgrade my flashcart? Thanks in advance for the replies.