Chosen Solution
I snapped off the middle screw retainer on the digitizer/lcd cover on an iPad mini 2. I was wondering first of all if it will affect anything. It doesn’t seem to have any circuits or connections broken beneath it. Seems almost like it was glue under it. Second, can I use a special type of glue to place it back? Thank you. Here is a picture of the spot:
If you are talking about the four securing points on the sides of the lcd it should be fine with out one. If you are really wanting to try to patch it I wouldn’t really recommending gluing it. Just secure the other three.
The shield that goes over where they connect to the logic board? Its not a huge deal. The little pieces that attach to the logic board come off all the time. They aren’t grounded or connected to the board in any way. They just kind (kinda) glued on. It won’t hurt anything if you are missing one.