crwdns2933897:0crwdne2933897:0

Why does it say

Why does my screen say full when I turn it on? I can't recalibrate or measure anything screen is stuck on full. I've changed batteries and no change. Is there anything else I can do to fix this?

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

crwdns2934109:0crwdne2934109:0

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