I had a R4i 3DS card. Now it won't read the card. What should I do to fix it? Please help. I had a DSI XL. I checked the system said I had a V1.4.5 U. Please help me. Thank you.
Likely because you'd upgraded your console's firmware without first upgrading your flash cartridge, thus blocked. To fix this issue? Use another console that still can run your cart and perform the upgrading of your cart using it's official kernel update provided by it's site.