Here is the original post by WiiCrazy !!
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http://gbatemp.net/t237997-downgrading-ios...-4-3-virgin-wii
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1. Grab WiiPower's latest TBR (1.13) from wiibrew which contains latest
revision numbers (http://www.mediafire.com/?qzmqirhnuyz)
2. Download lowest revision of IOS 41 from NUS using NUSD (such as v2835)
3. Install IOS 41 using wad manager, it's a ninty signed IOS and it
will gracefully install with non-trucha IOS
4. Use WiiPower's TBR to downgrade IOS 15 as usual... just select the IOS to be used as 41..
5. After downgrade, patch and install IOS 36 as usual...
6. Get rid of Korean IOS 41...
7. Do whatever you do with your trucha enabled IOS 36 ;p
ps1: TBR might codedump on selecting IOS 15, retry in case...
I had modified da_letter_a's mod but I got all kinds of problems
with the console code so I can't release it ATM.
ps2: Use the usual exploits such as SmashStack or Indiana Pawns to run TBR...
ps3: If you are noob, do not attempt to do this, just wait TT to release new bootmii
ps4: The essence of this workaround is the fact that we (non korean wii owners)
don't have korean ios but we can install any revision of them and use, one
area Nintendo just neglected I guess..
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