Apple has launched iSight camera replacement program to replace defective camera modules in certain iPhone 6 Plus models. Apple has discovered that a limited number of iPhone 6 Plus devices sold between September 2014 and January 2015 are affected by a manufacturing defect with the back camera. This defect causes photos taken with the back iSight camera to come out blurry.

From Apple Support page,

Apple has determined that, in a small percentage of iPhone 6 Plus devices, the iSight camera has a component that may fail causing your photos to look blurry. The affected units fall into a limited serial number range and were sold primarily between September 2014 and January 2015.

iPhone 6 Plus units that are producing blurry photos and have an eligible serial number will get their cameras replaced from Apple at no charge. You can go to the support page to enter your serial number and see if you are eligible for a replacement. If you are eligible, you can have the camera module replaced through Apple’s online support team, an Apple retail store, or an Apple Authorized Service Provider.

iPhone 6 Plus users have been complaining of blurry photos since shortly after the device first launched in September of 2014. Many reports claimed that the issue prevents the camera from focusing and could be related to the Optical Image Stabilization in the larger-screened device. The iPhone 6, which does not have Optical Image Stabilization, is not affected.

Apple recommends that affected users prepare for the replacement process by backing up their data to iTunes or iCloud. Apple also warns that iPhone 6 Plus units with damage like a cracked screen will need to have those issues solved before the camera can be replaced as the damage could impair the camera replacement process.

The iSight Camera Replacement Program will cover iPhone 6 Plus iSight cameras for three years after the first retail sale of the unit.

Link: Apple Support Page