No touch after digitizer replacement
I was brought an iPad 4 CDMA with a broken display. I ordered a replacement and when it arrived I installed it.
Everything went good with the install but there was no touch. I tried disconnecting and connecting it a few times and it did not help. I then hooked up the original broken display and everything worked so I called iFixit and they sent out a replacement.
When that one showed up I installed it and the same thing happened, no touch but the original display works.
There has to be an explanation for this, right?
What am I missing?
Es esta una buena pregunta?