I just replaced a battery on iPad Air 2. Everything seemed good. I tested the LCD and battery before i sealed it. I turned off the iPad and disconected the cables and applied the seal when i connected the lcd connectors and sealed in hopes it would turn on, but it didnt. I tried hard reset, i tried taking out the motherboard and putting it back together and i tried to connect it to itunes but no luck so far. When i install the lcd and try to turn on the iPad i can feel the motherboard getting a little warm. There is no display and the itunes does not recognize it.