Digitizer issues after replacement

Alright, so a customer brought me his Optimus G Pro (E980) for me to replace the digitizer. After replacing the digitizer everything worked fine for me. However, he has an encryption password so when I boot up the phone I cannot get in to test everything. For me, while on the encryption screen it works fine. But when he gets his phone back and gets past the encryption screen it requires him to hold one finger on the screen somewhere to touch anywhere else. I'm getting a new screen just in case but I was wondering if anyone else has any ideas.