A relatively small percentage of devices iPhone 5 shows a failure button Power (on / off), It ceasing to work (Or works only intermittent) For a certain period of time. Apple recently published support page of the company's website like the iPhone 5 models produced in the month March last year (2013) are affected by this problem.
Apple has determined that the sleep / wake button mechanism on a small percentage of iPhone 5 models may stop working or work intermittently. iPhone 5 models manufactured through March 2013 may be affected by this issue. Apple will replace the sleep / wake button mechanism, free of charge, on iPhone 5 models that exhibit this issue and have a qualifying serial number.
Although it is unknown exactly number of affected devicesUsers who experience this problem Power button can introduce serial number of the device pe website Apple to find out if it will be accepted for replacement of defective mechanismThen can go to a magazin Apple for it to be replaced / repaired free.
Currently this replacement program button on / off iPhone devices available only affected 5 US si CanadaAnd will become active and to other countries on May 2th.