原帖由： Jonathan Pegues ,
When getting low amperage like that it usually means there is a bad battery but considering that you changed that and it is water damaged that diagnosis doesn’t apply. what i would do is pull the logic board from the frame and if you have access to an ultrasonic cleaner then pop it in there with either Branson EC fluid or alcohol. If you don’t have access to an ultrasonic cleaner then a tooth brush and rubbing alcohol will do. First soak it in a bowl of alcohol for 5 or so minutes then give a good scrub with a toothbrush let it completely dry and try a new battery, new port (if you have access to one), and a new screen this will eliminate other variables if you try all at once. if it does turn on and work then you can go backwards to find the issue.