Installing Coin Cell Battery; Wwan Card; Removing Wwan Card - Dell Latitude 7490 Owner's Manual

When removing or replacing the RTC battery or the system board for Latitude 7290, the RTC battery must be
NOTE:
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.
When removing or replacing the RTC battery or system board for Latitude 7490, the RTC battery cable must be
NOTE:
routed in the routing channels and secured within the notch on the system board.
4. Connect the battery cable to the connector on the system board.
5. Install the 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:
a. Remove the M2.0 x 3.0 screw that secures the WWAN bracket to the WWAN card [1].
20 Removing and installing components
After working inside your
Before working inside your
computer.
computer.