Chosen Solution

Help!!! I have recently purchased an iPad Air 2 off eBay. It was described as working but with a heavily damaged screen. I received the IPad and purchased an OEM LCD and digitiser all in one. After fixing the screen and the iPad booting up fine I found that the digitiser does not work. I rechecked the pins on the board and how they were seated and al was fine…..I eventually put this down to a faulty digitiser. After sending the screen back and recieveig a replacement I went ahead fitted It, however the problem remains. I very much doubt I have another faulty digitiser so I’m thinking the problem lays elsewhere. Could any one give me any ideas of what might be causing the problem? I’m out of ideas. I hope it’s not a faulty logic board! EDIT! CHECK THE PICTURES

Thanks in advance.

On the first pic, it looks like one of the touch controllers is cracked. This will require microsoldering experience, and yes it looks like a logic board problem.