Okay I'm following this tutorial:

I get up to B2, I've tried every pack and I get the same error each time with IOS36(every other IOS hangs)

But here is the error:

>>Deleting tickets...ERROR! (ret = -4100)
>>Deleting title contents...ERROR! (ret = -1017)
>>Deleting title...ERROR! (ret = -1017)

Press any button to continue.

Any ideas?
(Not this is not my Wii, this is my friend's Wii, and it is a 4.2U)