Installing Coin Cell Battery; Wwan Card; Removing Wwan Card - Dell Latitude 7290 Owner's Manual

NOTE: When removing or replacing the RTC battery or the system board for Latitude 7290, the RTC battery must be
placed and secured with its adhesive onto the fingerprint reader bracket.

Installing coin cell battery

1. Affix the coin cell battery on the slot inside the computer.
2. Route the coin cell battery cable through the routing channel before connecting the cable.
3. Connect the coin cell battery cable to the connector on the system board.
NOTE: When removing or replacing the RTC battery or system board for Latitude 7490, the RTC battery cable must be
routed in the routing channels and secured within the notch on the system board.
4. Reconnect the battery
5. Install the following components:
a. base cover
6. Follow the procedure in

WWAN card

Removing WWAN card

1. Follow the procedure in
2. Remove the base cover.
3. Disconnect the battery cable from the connector on the system board.
4. To remove the WWAN card:
After working inside your
Before working inside your
computer.
computer.
Removing and installing components 19