After drop, battery life extremly short and wifi grey out iPhone 6
My iPhone 6 was dropped fairly hard. Everything works like normal except my wifi icon is greyed out and even with a full charge the battery will die within 20-30 minutes of setting it down, if even that long. I have opened the phone and cant see any physical damage to the battery or antenna. I am capable of replacing parts myself but im afraid I dont know which parts are needed.
Please help and thank you in advance.
P.S. the phone is network locked.