Touch doesn't work after screen replacement

I've gotten to step 28. The screen is displaying fine, but the touch doesn't work at all. What could be the problem? What should I try?

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

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0