If you have an iPhone purchased between October 2009-September 2012 (by dates, the affected models are only the iPhone 3GS, iPhone 4 and iPhone 4S), want to know that Apple has detected a fault in the USB power adapter that includes the phone to load it into any outlet. The affected models are the A1300. To identify the type of charger that you have, you can verify this by looking at the bottom of the same.
Do problem give the A1300? Apparently, and according to Apple, they overheat too though, in principle, there are no major risks. As a precaution, the company has confirmed that change these adapters for free affected (present or not the bug) to customers who have them in their possession. Holders of the A1400 model, can rest assured, on the other hand, that in principle these chargers are not affected by the problem.
Any user with an adapter A1300 may request the change, as it clears Apple in a statement. To do this you will need take it to an Apple Store or an authorized provider (including phone retailer as they clarify). In addition, it is necessary to bring the iPhone to check the serial number of the same. If you’re one of those affected, you can find more information about the process on the official website.