Below are the signcheck results. I was planning on running backups (.iso files on dvd-r) and would like to learn how to use usb loaders. The only backup I have right now is Zelda Twilight Princess on DVD.
Depending on the game you now put in your Wii it'll want to update at the moment, a lot of the newer batch of games are 3.4 and 4.1. Uninstalling cIOScorp may have left you with a bunch of older IOS which will also ask for an update. What games are you trying? Do a signcheck and see what your IOS versions look like now.
Backups wont work from the disc channel as you uninstalled cIOSCORP. Use a loader.