Nexus 5x won't turn on after replacing screen.

My screen was cracked and the touch was affected so I bought a new screen online and followed a simple video to replace it. Everything went fine but once I removed the battery I noticed a bet of a puncture on one of the sides with no smell so I thought it is external and won't affect the phone. When I put the phone together it did not start. I tried charging it which gave the red blinking led, should mean drained battery, left if there for a while still won't turn on and it was over heated so I removed the charger until it cooled down then tried again with the same observation. I did that a few times and then, the phone does not even show the red blinking led nor heat up.

Does this mean the battery is totally ruined or there could be another problem? and how can I test what is wrong?