As suggested by the title, I bricked my Wii U while using FTPiiU everywhere, due to messing up the locations of a pair of folders in the SLC while resetting my console serial. Now, I have a NAND backup, but I need advice for what tools and experience are needed to recover this. UDPIH did not work, suggesting that I removed a very early part of the boot order. The console's internal drive spins up, but does not show any screen. The console is not connected to the gamepad due to the aforementioned console serial reset, so I cannot receive feedback from it.
In short, I need to be pointed to the tools and materials to reflash the SLC from close to nothing, because I really do not want to buy another console. Again.
In short, I need to be pointed to the tools and materials to reflash the SLC from close to nothing, because I really do not want to buy another console. Again.