New screen issues on Apple Watch series 1

New screen issues on Apple Watch series 1

I purchased an Apple Watch with a broken screen, screen still worked but was shatter severely. I ordered a new screen off eBay and replaced it, the new screen has no touch at all it will not let me use my password or anything. Plug in the broken screen, no problems with touch works fine. Would this be a faulty screen, or is there something you have to do with new screens?