Well crap. And I thought I was playing it safe when I only softmodded and had BootMii.
I'll be awaiting these other gentlemen and hope for their input.
- I remember:
Having to try a lot different bannerbomb versions (a lot of them just made the screen freeze).
I must have found one eventually (or I must have found a different method that works) and I could install HBC and BootMii.
I remember the TV screen being full of blocks with a few bad blocks in it. This process took quite a while.
I then remember making the memory backup using the power and reset buttons.
So my guess (but hey, what's my guess worth?) is that BootMii was installed on boot2, but somehow got corrupt / overwritten if that's possible.
Again, thanks for your help and I hope Tealc or Mauifrog have an other suggestion for me.