In that post you can watch the repairing videos of iPhone 4. Now we also bring you Technician Guide to the iPhone 4 and iPhone 4s. This official Apple Technician Guide to the iPhone 4 and iPhone 4s has been released by Sonny Dickson.
This Apple Technician Guide provides troubleshooting steps, take apart procedures and other information about iPhone 4 and iPhone 4S. It is designed to be used in conjunction with the iPhone Visual Mechanical Inspection guidelines (070-2515).