I did some further research and - indeed - it is difficult to find a repair manual for the lower LCD/digitizer of the latest model.
My recommendation would be to use some instructions from the previous model. I am not sure how different the latest model is compared to the previous one. But I would give it a shot. You can always "cross reference" your steps with the teardown of the latest model provided here on ifixit.com.
Here is a video how to get to the lower screen of the previous model.
Bu yanıt yardımcı oldu mu?