Apple offers to replace the bottom case of some of the Macbooks shipped between October 2009 and April 2011 on account of the wearing off of the same. The ones qualified would have their rubber surface beginning to separate from the metal bottom case. Apple also offers a refund to those who have repaired it already – as reported by Engadget.
This offer comes irrespective of the warranty. Users can visit an Apple retail store, a service center or order a self-service kit from the site that includes a new bottom case, the proper screws, a Phillips head screwdriver and instructions.
Note that although the 2nd and 3rd generation Macbooks are unibodied, the bottom case can be separated from the main body.
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