Credit : Twitter user @tarasis

Apple’s joy of selling five million pieces of iPhone 5 in 3 days was soon eclipsed by ‘scuffgate‘  and other issues, prominent among them was a delay in availability, which  is because the device is hard to assemble according to a WSJ reports which quotes an ‘declined to be named’ Foxconn employee.

“The iPhone 5 is the most difficult device that Foxconn has ever assembled.  To make it light and thin, the design is very complicated,” said the source. “It takes time to learn how to make this new device. Practice makes perfect. Our productivity has been improving day by day.”

The official also added that ‘(Foxconn) has taken steps to improve its productivity and address scratches on the metal casings of some new iPhones.’ The anonymous source also admitted that a riot that occurred last month at a Foxconn plant was related to the metal casing and other “quality issues” with the new iPhone 5. The conflict reportedly arose between assembly line workers and onsite quality inspectors.