you can use any title deleter (make sure to delete the right one!) or data management to remove the old channel
I'm not sure, but I think ret -1 is a read error, if you have a different SD card, try using that?
edit
-1:
Wad Install Error:Most likely you have cIOS installed incorrectly, out of date, or missing.Your SD card is not Formatted as FAT16 or FAT32 properly, reformat it. If a file was needed, then it was not in the correct folder.Each application needs its files in specific folders, so pay attention to that. Can also be a bad wad or not enough space on the Wii. (example: If your installing cios38rev17 offline make sure you have ios38-64-v3867 on the root of your sd)
edit
do you have WiFi? if so try a network install as apposed to a WAD install
I'm not sure, but I think ret -1 is a read error, if you have a different SD card, try using that?
edit
-1:
Wad Install Error:Most likely you have cIOS installed incorrectly, out of date, or missing.Your SD card is not Formatted as FAT16 or FAT32 properly, reformat it. If a file was needed, then it was not in the correct folder.Each application needs its files in specific folders, so pay attention to that. Can also be a bad wad or not enough space on the Wii. (example: If your installing cios38rev17 offline make sure you have ios38-64-v3867 on the root of your sd)
edit
do you have WiFi? if so try a network install as apposed to a WAD install







