Hope someone can help, I had an R4 card for two months, everything was okay until my DS stopped botting up from it. I formatted the card and reloaded the 1.10 shell, still my DS will not boot up. To determine what was the issue, I borrowed my friends DS, to my suprise my R4 card worked perfectly on his DS. I tired his R4 on my DS and again it will not boot up. 'Normal' games work fine, but somehow my DS refuses to boot up with R4, any ideas ? Has the DS firmware somehow got upgraded ?