So, I recently took my SD card out of my Wii U to put some files on it and then slipped it back inside the Wii U. I have CBHC installed v1.6 that had been working with a 90% success rate upon boot without freezing. I booted up the console and it hangs on a black screen with a little '-3' in the top left hand corner. After waiting quite awhile at this screen, I powered off the Wii U and powered it back on. It worked and sent me to the system menu. However, when I tried powering it on again after my play session, I got stuck on the '-3' screen again. After three tries of rebooting the console, it now does not progress to the system menu. What does '-3' mean, and does this mean my SD card or CBHC has somehow corrupted? I have tried researching this '-3' online, but there doesn't seem to be any documentation on it. I should note that when I put my SD card back into my computer, Windows reported that I ought to scan the card and check for errors. I let Windows do its thing and it returned with no errors on the card. What should I do? Thanks in advance, guys.