Hello, First of all, i am kinda new to CFW and 3DS hacking stuff. So, basically i've installed CFW (arm9loader + Luma3DS) 2 months ago on my 3DS XL (OLD). Everything was running perfectly until 1 week ago... When i picked my 3DS and tried to play with it, after pressing the "POWER" button it just kept giving me a blue light flash (~1 Hz) everytime that i tried to boot it. I opened it and disconnected/connected everything again thinking it could be some cable problem, and after reassembling it back, it went normal again. 1 day after, the same problem occurred, and i found that the problem was being caused by the SD Card. So, this problem happens to me almost everytime i boot my 3DS, and what i do is: I take of my SD card, put it back in, and it works fine again, just by the move of "TAKING OUT/PUTTING IN" the SD Card again while 3DS's off... Without the SD Card it boots fine, just without the CFW stuff ofc. What do you guys think its causing this issue? Shall i transfer my data to another SD Card? Could i simply backup my SD Card files, format it, and replace all my backup again? Or is there any other "engineering" method to backup CFW SD Cards? I am kinda new to this, so i might not know the correct procedures in this case. Thank you very much guys.