Chosen Solution

Just replaced charging port assembly. Put everything back together, now phone won’t turn on. No power. Thoughts?

If its a an iphone 6 the battery is most likely bad. Has it ever been changed? It is most likely totally dead. They only work for a few years and its 4 + years old now. You need to replace it yourself or go to an authorized place. Doesnt have to be Apple. Many places do this, and can do it within 10 to 30 mins.

Did you ever get it changed good sir? Guarenteed you will be happy. Also turn off battery/throttle limiter setting. Its slows performance regardless so you dont want it.