Why is touch not working on samsung galaxy s4 after I repair?

When you did the loca on the glass, did you remove the LCD and apply it to the glass, or did you leave the LCD in the frame? If you left it in the frame during the glass replacement, did you tape off all the areas where the loca is not supposed to go(top and bottom of LCD, over the top of the power button area, over the top of the LCD connector area)? If it was working after the replacement, and now its not, then it sounds like the loca has leaked into areas of the phone where it shouldn't. Try removing the phones rear housing and check for excess loca, especially on the LCD connector. If you find glue, disconnect everything and clean it with isopropyl(90% or better). The menu buttons may not be working for the same reason. This could all be due to damage from removing the glass as well. It is very easy to damage the LCD and the menu button flex during the process.