Korean Wii Differences

The Korean version of the Wii differs from its international counterparts in several ways. In addition to the usual region-locking, it implements extra security measures, likely intended to protect the console from piracy, which was particularly prevalent in South Korea around the time of its release.

This article, while not exhaustive, aims to list as many differences as possible between Korean and international Wii consoles.

Hardware differences

• Only the original Wii (RVL-001) in its Bollywood revisions was released in South Korea. It uses a specific region tag ("KOR") for product identification. Since earlier hardware revisions were never released in South Korea, the region code is always formatted as "C/RVL-KOR", whereas international units often have an additional "-1" (or higher in Europe) suffix to identify Bollywood units.
• Contrary to what might be expected, Korean Wiis are hardware-identical to international units. The power adapter (RVL-002(KOR)) supports 220V and uses a CEE 7/16 plug, just like European units. Korean Wiis are fully compatible with international video cables and sensor bars.

Software differences

• Korean Wiis implement the standard region-locking mechanism, but unlike other regional variants, they do not follow the usual NTSC-U, NTSC-J, or PAL standards. Instead, they use a dedicated software region, meaning that Korean games only function on Korean Wiis, and vice versa.
• Due to region-locking - and possibly also South Korea’s stricter regulations on video games - fewer titles were released for the Korean Wii than for international versions (see List of Korean games released for the Nintendo Wii).
• The Wii’s serial EEPROM contains a 16-byte section at offset 0x74, which is normally zeroed on international consoles. On Korean units, this section contains the value 63b82bb4f4614e2e13f2fefbba4c9b7e, known as the Korean key. This key provides additional protection for Korean titles, which cannot be read without it. Furthermore, starting from version 4.2 and thanks to IOS70, any non-Korean Wii Menu checks for the presence of the Korean key. If found, error 003 is triggered, which effectively bricks the console.
• The initial Wii Menu version in Korea was 3.3. 3.4 and 4.0 were never released in Korea; instead, an exclusive update labeled 3.5 was issued, incorporating changes from both 3.4 and 4.0 through its different revisions. Korean Wiis received the same updates as international consoles as of 4.1.
• Korean Wii Menu versions, along with the PAL-exclusive version 2.1, are the only official Wii Menu versions that are not available on development units through the Wii Menu Changer.
• Certain channels, notably the Forecast Channel and News Channel which were preinstalled elsewhere, are unavailable on Korean Wiis.
• GameCube functionality is hidden from the Wii Menu, although it does work.
• The IOS4x series was dedicated to Korean units. These IOSes were generally improved versions of their IOS3x counterparts, intended exclusively for use by Korean titles. Due to their adoption in homebrew applications, these IOSes were officially released internationally in version 4.3, even though they were not used.