Xanthan
Hardcore Gamer
I'm pretty sure one of a few things possibly happened here.
A) your firmware DL was somehow corrupted
B) during the firmware flash process there was an unexpected error, and perhaps it didn't fully flash the bios
C) your bios had bad memory sectors, this can cause bios' to possibly read fine from the factory, but not be able to accept a flash properly.
Any of these problems and you're basically screwed, anytime you update the firmware on any device there is a small chance of something like this happening. Unfortunately if you want to access certain functionality of the Wii such as the online store you MUST update your Wii, unlike updating the firmware on lets say your router where the manufacturer will say don't upgrade the firmware unless you are having problems.
A) your firmware DL was somehow corrupted
B) during the firmware flash process there was an unexpected error, and perhaps it didn't fully flash the bios
C) your bios had bad memory sectors, this can cause bios' to possibly read fine from the factory, but not be able to accept a flash properly.
Any of these problems and you're basically screwed, anytime you update the firmware on any device there is a small chance of something like this happening. Unfortunately if you want to access certain functionality of the Wii such as the online store you MUST update your Wii, unlike updating the firmware on lets say your router where the manufacturer will say don't upgrade the firmware unless you are having problems.