crwdns2933897:0crwdne2933897:0

What is small t rubber gasket from?

Block Image

Went to repair my daughters Metro PCS LG K7 phone that she dropped. Upon opening the back, a small "T" shaped washer/gasket the size of a pencil eraser fell out. For the life of me, cant locate where it came from and cant find any schematics for this device. Anyone by any chance have a clear picture or schematics of where it goes/came from? Thanks.

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2853045:0crwdne2853045:0 crwdns2853046:0crwdne2853046:0
crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0