crwdns2933897:0crwdne2933897:0

Phone not booting up

My phone is not booting up & I am told that the motherboard needs to be replaced, If I get the motherboard replaced will I lose my pictures/videos & contacts that I have on the phone.?

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

crwdns2934109:0crwdne2934109:0

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