Chosen Solution

Hey i got an ipad air 2 here which’s screen isn’t showing anything. Hardreset or Battery disconnect did not help yet. But it does show up in MacOS and is called as “acess denied”. Obviously i cannot grant acess due to no functioning display. Do you guys think it might be worth it to order a replacement unit and give it a shot? Or does the “acess denied” not at least 80% means it is functioning? On the other hand it gives no sound respond while charging. Sorry for the bad englisch greetings Update (02/23/2019) Well thats how the button looks atm

found a video where they fixed it with microsoldering.. kinda high level stuff but should be doable, right? https://youtu.be/8IjC7rbH4RU just want the touch id to stay alive

Your bad display will need to be replaced iPad Air 2 Wi-Fi Display Assembly Replacement. The bigger question are you up to installing it your self or do you need someone with more skills do it for you? The fact your Mac sees the USB connection of the iPad is a good sign! Nothing more.