オリジナル投稿者： test lab ,
After dismantling and desoldering and resoldering so many times, I could open the Fire in 10 seconds. I also found a cheap solid solution without buying a new port. I made used of the head phone port. Only one short wire is needed to jump the usb +5volt to headphone port + terminal. Ground terminals are shared or connected on the motherboard. No jumping of ground is needed. Cut an old broken headphone wire. Cut off micro usb charger plug. Connect the +5v/ground to headphone 5mm male plug with a pig tail. Solder and tape up. Done. A multimeter is needed in addition to soldering iron, solder, paste, electrical tape. This new alternate charging port has been working happily over 3 months.