Causes

• Stuck or broken iPhone power buttons have a few causes that are commonly reported by iPhone users. Dropping an iPhone so that it lands on or near the power button can cause the power button to stick or cause the iPhone's power to toggle on and off uncontrollably. An iPhone's power button can also become stuck if dust or some other obstruction becomes lodged underneath the power button.
  
  

Manual Repair

• An iPhone user can try a few different manual repair techniques to free the iPhone's power button from its stuck position. Use canned air to blow into the space around the power button to try to loosen any obstruction keeping the power button stuck. An owner can also try to loosen the blockage with fine bristles, such as those from a toothbrush. Sometimes, dropping the iPhone can cause internal components to move slightly, affecting your ability to press the power button. In these cases, use your hand to place pressure on either of the iPhone corners near the power button and press down on the power button at the same time.
  
  

Apple Warranty

• Apple extends one-year limited warranty protection to anyone purchasing an iPhone product. (See References 4, pg. 1) If an issue covered by the warranty, such as a broken power button, occurs within one year of the iPhone's retail purchase, Apple will pay for repairs through a licensed Apple service provider, replace the iPhone or refund the price of the entire purchase. (See References 4, pg. 1, paragraph above "Exclusions and Limitations") To take advantage of Apple's limited warranty, bring the malfunctioning iPhone to an Apple retail store and show the defect to a representative.
  
  

Repair Service

• If the Apple warranty will not cover the repair for your iPhone, you can still have the stuck power button fixed by a third-party repair service. A repair service provider will open the iPhone case and replace both the power button and the flex cable that the power button controls. A repair service will be able to address most common issues affecting the functionality of the iPhone power button, including a cracked or missing power button or a power button that cannot turn on the iPhone.