Dell Inspiron 15R (N5110, Early 2011) - Manual (Page 72)

72 Hard Drive
4 Slide the hard-drive assembly to disconnect it from the system-board
connector.
5 Lift the hard-drive assembly off the system board.
6 Remove the four screws that secure the hard drive to the hard-drive
bracket.
7 Lift the hard drive away from the hard-drive bracket.
1 hard-drive assembly 2 screws (2)
1
2