I was afraid to clean out my charging port with a pin or anything sharp, so I just used compressed air. Now that I have the “bad” part out of the phone, I am slowly digging crud out of the port with a long pin. I probably did not need to replace the port after all (and botch the job).
My screen cracked as I was putting it back on. I was careful (I have opened up iphones twice before), and I thought I was doing it properly. I started at the top end, and pushed both sides down evenly, working my way to the bottom. It seated itself properly, and then suddenly, a vertical crack appeared, from the home button, going straight up. And the Home Button no longer works.
I’m on the fence about opening it all up again to replace the glass. I may take it to a repair place this time. I found this repair to be more than “moderately difficult”… it was a bit more than that. I started at dinnertime, and finished at 3 AM.