How to open my Galaxy Tab S 8.4 to solve that problem?

Hi ,

Between the home button and the back one when i press , i can hear a noise, the front goes under the frame , looks like a screw missing or i dont know . The plastic makes a cracking noise on this area.

The tablet is only 1 month used and no drop or anything . I dont really want to send it to repair so im looking for a teardown. But that tablet is really new so there is no video about it

This area of the screen really moves under the frame

Please help me