Seveal people in Taiwan confirmed they just bought 4.3J virgin Wii and found all Korea IOS (40,41,43,45,46) have been already existed and most of the version is v3606 which will cause error -1017 if we tried to install IOS41 or 43 lower version (v3091). (TBR won't work to downgrade IOS15 if we can't install lower version of IOS41 or 43 .....) Is there anyone found the 4.3U or 4.3E virgin Wii with the same problem ? If someone got the latest game "Metroid Other M" and checked its "Update Partition" , it had the same Korea IOS. The solution is to use WiInstaller (IOS58+AHBPORT) to downgrade IOS15 from v1031 to v257 directly. BTW, does someone know what's the difference between using TBR and WiInstaller to downgrade IOS15 ?