Screen glass loose on bottom

Hi

I have a opo on which I replaced the display. The quality of the part isn't the greatest, and the bottom of the glass is a little loose.

This is my 2nd part already and I don't really want to wait 3 weeks and replace it again (might very well get another bad unit, it's a dirt cheap straight-from-China display).

Does anyone have any advice on how to fix it myself? Can I inject some glue under there? (And which type of glue is best?)

Here some images:

Thanks in advance