'''++John Smith++''' when you say that half of your display did not work the issue then would be a LCD issue. If you are saying that half the screen was unresponsive to touch then it is a digitizer issue. If it is the display not working replace the LCD. If it is the touch it could be the digitizer (yes it is possible to get multiple bad ones) as well as the connector for the digitizer. Check it for damage as well as the logic board. Let us know what you find
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https://www.ifixit.com/Device/iPad_Mini_Wi-Fi here are the guides for it
'''++John Smith++''' when you say that half of your display did not work the issue then would be a LCD issue. If you are saying that half the screen was unresponsive to touch then it is a digitizer issue. If it is the display not working replace the LCD. If it is the touch it could be the digitizer (yes it is possible to get multiple bad ones) as well as the connector for the digitizer. Check it for damage as well as the logic board. Let us know what you find