Answer to: I see a charging symbol, but the battery percentage is not increasing.I got a replacement lightning jack and battery from iFixit about 2 months ago. The jack wasn't making a good connection (had to wiggle the cable to get it to charge) and the battery would die in under 24hrs. The replacement went fine but about a week ago my phone started doing this too. It was charged over night and in the morning is still stuck at 21%. In the past unplugging/plugging back in a couple times has gotten it to recognize it is fully charged. Today I'm not having any luck. I'd hate to hear that I have to replace both parts again, especially so soon. Hopefully someone finds a definitive fix.