A technician holds a new iPhone display assembly as he makes a repair at Apple's display repair laboratory in Sunnyvale, California, U.S., May 19, 2017. REUTERS/Stephen Lam
A broken Apple iPhone repaired by a third party service provider is seen at Apple's display repair laboratory in Sunnyvale, California, U.S., May 19, 2017. REUTERS/Stephen Lam
A repaired Apple iPhone is seen inside the proprietary Horizon machine fixture as it undergoes a repair procedure at Apple's display repair laboratory in Sunnyvale, California, U.S., May 19, 2017. Image used for illustrative purpose.
A partially disassembled Apple iPhone is seen on a repair fixture at Apple's display repair laboratory in Sunnyvale, California, U.S., May 19, 2017. REUTERS/Stephen Lam - RTX39D6P
A broken Apple iPhone repaired by a third party service provider is seen at Apple's display repair laboratory in Sunnyvale, California, U.S., May 19, 2017. REUTERS/Stephen Lam
An Apple Horizon machine fixture made to service broken iPhones is seen at Apple's display repair laboratory in Sunnyvale, California, U.S., May 19, 2017. REUTERS/Stephen Lam
A technician installs a screw inside an Apple iPhone at Apple's display repair laboratory in Sunnyvale, California, U.S., May 19, 2017. REUTERS/Stephen Lam
An Apple technician uses a press with an integrated timer to activate adhesives on an iPhone at the company's display repair laboratory in Sunnyvale, California, U.S., May 19, 2017. REUTERS/Stephen Lam
A repaired Apple iPhone being calibrated inside the proprietary Horizon machine fixture at Apple's screen repair laboratory in Sunnyvale, California, U.S., May 19, 2017. REUTERS/Stephen Lam
An Apple technician repairs an iPhone at the company's display repair laboratory in Sunnyvale, California, U.S., May 19, 2017. REUTERS/Stephen Lam
A collection of tools used to replace the Apple iPhone display is seen at Apple's display repair laboratory in Sunnyvale, California, U.S., May 19, 2017. REUTERS/Stephen Lam
An Apple Horizon machine fixture made to service broken iPhones is seen at Apple's display repair laboratory in Sunnyvale, California, U.S., May 19, 2017. REUTERS/Stephen Lam
A piece of adhesive used to repair cracked Apple iPhone screens is seen at a display repair laboratory in Sunnyvale, California, U.S., May 19, 2017. REUTERS/Stephen Lam
Sets of screws taken from an Apple iPhone are seen on the bench during a repair demonstration at Apple's display repair laboratory in Sunnyvale, California, U.S., May 19, 2017. REUTERS/Stephen Lam
A broken Apple iPhone repaired by a third party service provider is seen at Apple's display repair laboratory in Sunnyvale, California, U.S., May 19, 2017. REUTERS/Stephen Lam
A tool used to separate the display from the body of an iPhone is seen at Apple's display repair laboratory in Sunnyvale, California, U.S., May 19, 2017. REUTERS/Stephen Lam
A broken Apple iPhone repaired by a third party service provider is seen at Apple's display repair laboratory in Sunnyvale, California, U.S., May 19, 2017. REUTERS/Stephen Lam - RTX39D6B
A repaired Apple iPhone is being calibrated inside a proprietary Horizon machine fixture at Apple's display repair laboratory in Sunnyvale, California, U.S., May 19, 2017. REUTERS/Stephen Lam
A technician unassembles an Apple iPhone as he prepares to replace the display assembly at Apple's display repair laboratory in Sunnyvale, California, U.S., May 19, 2017. REUTERS/Stephen Lam
A repaired Apple iPhone is seen inside the proprietary Horizon machine fixture as it undergoes a repair procedure at Apple's display repair laboratory in Sunnyvale, California, U.S., May 19, 2017. REUTERS/Stephen Lam
Apple's Repair Lab: Fixing iPhones and iPads for you