PHOTO GALLERY: Inside the office of Columbia iRepair

September 14, 2012 | 6:00 a.m. CDT

Trevor Robinson repairs iPhones and iPads for the company he started, Columbia iRepair.

Trevor Robinson screws in a tiny iPhone screw Tuesday at his home repair shop. There are 46 screws on an iPhone 4S. "It used to take me two hours to do what I can now do in 20 minutes," Robinson said. | Kayla Kauffman

Trevor Robinson replaces the screen of an iPhone on Tuesday at his home repair shop. Robinson taught himself how to repair the phones. | Kayla Kauffman

Parts from all of the repairs Trevor Robinson has done in the past week sit on the floor Tuesday in his home repair shop. Robinson saves all the broken parts from phones he fixes to be sold back to manufacturers in China. "I try to recycle as much as I can," he said. | Kayla Kauffman