Dell Latitude 7210 2-in-1 Service Manual page 42

d) Remove the M1.6 x 3 screws securing the front camera module to the system chassis.
e) Peel off and lift the front camera module from the tablet.
Installing the front facing camera
Steps
1. Insert the camera module into the slot on the tablet.
2. Replace the M1.6 x 3 screws to secure the front camera module.
42 Disassembly and reassembly