I was following this guide: https://github.com/Plailect/Guide/wiki/Part-4-(2.1.0-Downgrade)
Then on Section 3 when I should format again, my FBI is giving the 0xD900458A error when I try to install TinyFormat.cia, what should I do?
There is a recommended SD Card size to install a CFW? If I change SD cards, I'll need to install the CFW again or I can just transfer the old SD files to the new one?