原帖由： Ethan Chow ,
It can take well over 10 minutes to start off a completely dead battery. I would think iFixit batteries would come charged, but you never know. If it shows its charging(aka no lightning bolt on screen) then you should be good. Just wait like an hour and see. If still no go, then you may want to check how many amps it is drawing from usb port by splitting one of the wires apart and hooking each end to a probe on your multimeter, then measure amperage. You may also want to check voltage of battery, and or the voltage of batt. terminals on phone.