"Apple has determined that a very small percentage of iPhone 5 devices may suddenly experience shorter battery life or need to be charged more frequently," the company said in a statement.

The company also said, “The devices sold between September 2012 and January 2013 and fall within a limited serial number range.”

One can visit the official Apple website to check that whether your device falls in the replacement criteria. The program was launched in the US and China and will be available in other countries from August 29.

iPhone 6 to have 128 GB internal storage?

The most anticipated smartphone of 2014, Apple iPhone 6, is likely to have 128 GB internal storage capacity, according to the fresh reports.

According to a blog, Apple will be releasing a 128 GB in 5.5 iPhone 6, but the rumoured 4.7 in option will not have the larger capacity. Another website said that the device will be launched on September 19 in 32 and 64GB variants.

As per sources, the device is going through the last phase of testing called ‘product validation testing’ or PVT.

The PVT phase is all about the process to check out any problems with the production line. This helps to track the production line of the possible hurdles that might come up when the device will go for mass production.