Latitude 5491 Service Manual

Removing the chassis frame

1. Follow the procedure in Before working inside your computer.
2. Remove the:
   1. base cover
   2. battery
   3. hard drive
   4. SSD card
   5. SSD frame
   6. WLAN card
   7. WWAN card (optional)
      NOTE: There are two different screw sizes for chassis frame: M2x5 8ea and M2x3 5ea
3. To release the chassis frame:
   1. Unroute the WLAN and WWAN cables from the routing channels [1].
   2. Lift the latch and disconnect the keyboard backlight cable and the keyboard cable from their connectors [2] on the system.
      NOTE: There may be more than one cable to disconnect based on the keyboard type.
   
4. To remove the chassis frame:
   1. Remove the five (M2x3) screws and eight (M2x5) screws that secure the chassis frame to the system [1].
   2. Lift the chassis frame from the system [2].