Dr. Phone Fix's technicians know their way around a circuit board. That's because they spend their days repairing and replacing electronic devices of all sizes, from hand-held smartphones to full tower computers, striving to power up their customers' products with as little downtime as possible. Their Apple repair services bring sidelined phones and tablets from the brink of the recycle bin by replacing smashed glass as well as touch sensors that only respond to the feel of their owners' toes. They can also remedy broken charger ports, crackling audio connections, and faulty power buttons that plague HTC and Samsung devices.