There is a little soldering... but very easy to do as the soldering points a nice and large. Install time is about 5 - 10 mins once the wii is open.
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This replacement Wii drive board can be used in any Wii console from any region, it does not matter what version drive board was in before. Just replace the damaged Wii DVD board.
The best way to repair without having to replace the whole drive.
**NOTE: This board is for repairing a faulty driveboard - this version does not currently work with any modchips.