I picked up a second hand DS4 for $20 and the guy said the trigger was broken (missing). I figured it was just a broken pin on the trigger and an easy fix with a replacement. As i'm taking it apart to clean it up I noticed the circuit film for the left buttons has a tear were it goes to the contact pad for the trigger. I looked at a few on eBay and I was wondering are these a pretty universal part or do the numbers and letter on them have to match up with the numbers and letter on on my circuit 1535 D? Can anyone with experience fixing these help out? Thanks!