Hello Guys, Long old story short: Remember some time ago when I posted I had a bad customer NAND mod done that rendered the motherboard with permanent blue screen? I tried replacing the res array, fixing the trace but yet the console wont turn on. So I got another cheap 3DS XL 4.5 motherboard (USD 55 give or take). A bargain I must say. It had just a minor issue with the touch connector in the motherboard I fixed with hot glue (I guess hot glue can solve everyone's problem, isn't it?!) So, I installed it and everything was fine. I then proceeded to do a NAND HW mod and for my surprise everytime I plug the USB -> SD adapter the console wont turn on. It blinks the power led a bit and then shuts down (1 second). I checked carefully the wiring and I'm 200% sure it's not it. I also have a tiny SD cable (really short) I use to do quick unbricks and I even tried it with the same behavior. If I switch USB -> SD adapter (I have two different types) it takes a little longer to shut down (almost 4 - 5 seconds). If I remove the adapter (leaving the wiring on) it works perfectly. Warning: Spoilers inside! yellow: GND black: DAT0 red: CMD white: CLK The only explanation I can give is that the adapter is "interfering" somehow with the boot process. I have another 3DS XL and it works perfectly with both adapters. Any clues? Did you see that already? If so, how did you circumvent the issue? Cheers!