error 003 4.2u

My Wii is bricked. It's been like this for 5 months now and I couldn't find a solution then. I feel like trying again now though.

Here is the best description I can give out of memory:

Version 4.2u
Black screen w/ error 003
No access to priiloader menu [holding reset button while powering Wii no longer works]
No Menu Screen
I don't have a drivechip
Homebrew was smash stack
I cannot boot homebrew


I believe what caused the Wii to brick was updating 4.3
Can you guys help me out?

There is only one way to fix it and it's fairly complicated. Here is a guide for it: [www.wiihacks.com]
Otherwise you'll have to get a new Wii.