As a result of incoming messages from numerous clients and charges relating to the intentional degradation of performance on older models iPhone, the company Apple he publicly posted a statement in which he apologizes and clarifies this problem.
In the press release published on Dec. 28 2017, Apple apologizes to customers disappointed by the way the company communicated the problems that can appear with iOS upgrades for the older iPhone models, emphasizing at the same time that they did nothing on purpose to shorten the life of an Apple device, in order to stimulate the upgrade to new device models.
First and foremost, we have never — and would never — do anything to intentionally shorten the life of any Apple product, or degrade the user experience to drive customer upgrades. Our goal has always been to create products that our customers love, and making iPhones last as long as possible is an important part of that.
The main problem that many iPhone owners have complained about is unexpected termination / sudden device, even if it indicates a battery charge level of 20% - 40%.
Apple also says in the press release that it is normal that over time, the performance of a lithium-ion batteries to decrease, and that its lifespan depends on several factors. The chemical degradation of the lithium-ion battery occurs depending on the demand of the device, the charging cycles and the external environment.
The degradation process of a lithium-ion battery is the same for all devices that use these types of batteries. Degradation comes along, along with charging cycles, depending on the charging mode and the use of the device.
For a user who uses a iPhone applications and games which requires more energy resources, battery life span it will be lower than for users who only occasionally use complex applications and games.
About a year ago, Apple released the update to iOS 10.2.1. In this update, an attempt was made to reduce energy consumption for iPhone 6, iPhone 6 Plus, iPhone 6s, iPhone 6s Plus and iPhone SE, by managing dynamic performance some system components. This measure led to risk of sudden stop of many iPhone devices, however visible performance degraded in applications.
Apple mentions that this modification of system resource management in iOS 10.2.1 was a success that led to the stopping of the sudden shutdown of the devices mentioned above. With iOS 11.2, this change also applies to the iPhone 7 / iPhone 7 Plus models. Therefore, the owners of iPhone 7 and iPhone 7 Plus have slower devices with the release of iOS 11.2.
Although Apple acknowledges that the performance drop occurred as a result of an intentional change in iOS, it puts this problem on chemical aging lithium-ion batteries, saying that changing an old battery with a new one will automatically revive the performance of the device.
In order to win the trust of customers, Apple announces a $29 off at changing the batteries models for iPhone 6 or older. This discount will be applied globally, starting from January 2018, and all owners of iPhone 6 (or older models) will benefit from it outstanding warranty. The final price for replacing the battery will be 50 dollars.
