Grab the replacement display from its packaging, without removing the protective plastic and adhesive liner.

Connect the display flex connector to the replacement display, then turn on the tablet to test its functionality

You may use the Samsung Members app to perform the test, as I was unable to access the ServiceMode menu for some reason. Make sure both the capacitive touch and S Pen functionality works before reassembling

If you had replaced the battery, ensure the motherboard cover is put back, otherwise the tablet will not turn on.