Chosen Solution

Completed a battery change and charging port change but phone failed to charge. I placed a USB Detector between the power supply and the charging cord and it shows no load going to the phone. Also hooked a test cable at the battery connection and plugged in the phone. It confirmed that there is no charge going to the battery. Battery showed voltage on the meter. What is the best way to confirm if the new charging port is bad? Or if the IC USB chip is bad? Thank you

since you changed the battery and charge port and cant see any charge with the v/a meter i would say tristar could be the problem