Chosen Solution
I replaced the digitizer on my iPad 5th Generation , A1822. When I went to test before closing it up I noticed the screen was blank and would not display anything. I could see it was slightly dark blue so not completely black but it has backlight. After multiple soft resets and multiple hard reset nothing worked. I plugged it in and removed the power supply with no difference. I did this while attempting the various two types of resets. I reinstalled the old hardware and was shocked when the screen turned on. I proceeded to uninstall the broken hardware and reinstalled the new digitizer. The same thing occurred nothing on the screen with the screen displaying the dark green. I assume this is the back light being turned on. Each time I made sure the battery was not connected to not cause any high amp damage. A bit confused about what to do next.
With the new screen connected try pressing the home and power buttons together for 30 to 40 seconds. If apple logo appears then let go.
