This iPod came is with no power. When power was connected, it would show it’s charging but would never power on.
Upon careful inspection, we found a corroded capacitors on the port and it caused the battery to burn as well.
Thus it was time for us to take this apart and replace charging port.
This is the iPod touch 5th/6th generation charging port. As you can see, it’s not simple FPC connector. You must solder the connector on the board! 42 pins total.
we did it. Removed bad port and replaced it with a new one. We also replaced battery.
iPod came back to life and charging.