Replaced digitizer but screen isn't working in two small areas...

Hey there, I Replaced digitizer and LCD (two separate pieces) for my Samsung Galaxy S4 Active. The LCD is working great but the touch digitizer isn't working in two small areas...if I have the keyboard open, I can't hit the q key or the i key. Any help would be appreciated. Thank you for your time and consideration. OHHH and I recently replaced a kindle paperwhite screen/touch from China and the top right corner where the preferences is isn't working. I am getting these screens replaced by some phone repair guys off the street of Mumbai. They're supposed to be "the best". Either they're making mistakes or these Chinese LCD/DIgitizers are poor quality.