After doing this repair, the iPad mini 3 would not rotate the display when turned. After many many hours of searching for a fix and none of the solutions working I put it aside to come back to it fresh another time. I had forgotten it for several months, when I pulled it back out the other day. And because I’m the type of person who hates when I know something isn’t right after a repair, it was time to figure it out. Now, after going through two digitizer panels and a home button from iFixit, all of which they were happy help me try to solve the issue, I decided to just find a panel with the home button already attached thinking there must be something not right with the reattached home button from before. After the easiest reassembly of the 3-4 times I had it apart it was back to working perfectly. Of course Touch ID won’t work due to the home button not being the original. But that was something I knew wouldn’t be the same, so in my mind, I’m satisfied. Now the iPad mini 3 functions at 99%.

I did this last night and steps 29 and 30 aren't required if this is just a guide to replace the keyboard with a backlit keyboard, and not a new top case. Also, the steps to remove two small brackets on either side of the case near the display to allow access to the mic and to remove cable held down by them, are missing. They should be part of step 18 and 27.

Also, step 31 should read:

Now that you have removed the display(not required if just the keyboard is replaced), logic board, optical drive, and various other components from the upper case (or top case) You should have something that looks like this!