There is already a V4.0 firmware update fix...
Waninkoko Wii 4.0 Firmware Updater
This application allows you to update the firmware of your Wii safe and convenient to install only the applications needed for this (IOS, System Menu, channels ...)
Quote:
+--------------------------------+
| [+] Firmware Updater v4.0 |
| developed by Waninkoko |
+--------------------------------+
|
www.teknoconsolas.es |
+--------------------------------+
[ DISCLAIMER ]:
- THIS APPLICATION COMES WITH NO WARRANTY AT ALL, NEITHER EXPRESS NOR IMPLIED.
I DO NOT TAKE ANY RESPONSIBILITY FOR ANY DAMAGE IN YOUR WII CONSOLE
BECAUSE OF A IMPROPER USAGE OF THIS SOFTWARE.
[ DESCRIPTION ]:
- This application allows you to update your console's firmware installing only the
needed applications (IOS, System Menu, channels...).
Thanks to it you can keep some features like Trucha bug that affected first IOS
versions.
[ REQUISITES ]:
- 150-250 free blocks.
- Internet connection.
[ HOW TO USE ]:
- Run the application with any method to load homebrew and the update will be done
automatically.
[ KUDOS ]:
- Team Twiizers and devkitPRO -> libogc
- frontier -> libpng
- All my betatesters.
http://www.teknoconsolas.tv/wanin/Fi...pdater_4.0.zip
From
http://www.teknoconsolas.es/node/10764
Not tried this yet myself, still doing my research.
From what i'm reading, this update will not affect any already installed Hombrew Channel or Backup Launcher channel or any cIOS's that have been installed to do other hacks.
There is no Twilight Hack yet available for a v4.0 firmware, so you cant install the Homebrew Channel on a v4.0 Wii.
Pro's of upgrading to genuine:
You get all the latest cIOS's so game compatibility shouldn't be a problem for those with 002 errors.
You get the 'Read from SD card' function for VC and WiiWare games.
You can still downgrade to v3.2 if you need to. (make sure you have cIOS36-v8 installed)
Con's:
Starfall, Softmii and preloader will not work (as with v3.4 update)
If you use the Wii shop channel (dont know why you would), it will delete any unsigned (copied) wad files (bye bye VC/WiiWare games)
If you dont already have Homebrew installed, you wont be able to ever do it (until a fix comes out or you modchip)
I will test it next week when more guinea pigs have logged their reports and the scene hackers are confident with their findings and release.