Black screen when trying to load homebrew page

Hi guys first post so here we go.

I recently attempted to get the wii shop channel to work on 4.1U post softmod.

First I loaded ios61 v5405.wad, then Wii ship channel v17.wad. Everything went fine but the shop channel would still not work, and wanted a system update.
Then I read that there was a v18 wad now.

I uninstalled the above wads and then attempted to install the new updated ones however when I try to enter the homebrew channel all I get now is a black screen. Please help, I look forward to your advice

Should I attempt to reinstall the homebrew channel or run NAND backup?

Okay I solved it, thought I would leave info incase anyone else makes this mistake.
1) I uninstalled and reinstalled homebrew channel
2) once I could access homebrew channel I updated it via network connection.
3) Then I installed new shop channel using tutioral on following link
http://www.wiihacks.com/homebrew-dow...installer.html

Thanks ShadowSonic2