Coin-Cell Battery; Removing The Coin-Cell Battery - Dell Latitude 3420 Service Manual

Steps
1. Align and place the power adapter port on the palmrest assembly.
2. Install the (M2x3) screw to secure the power adapter port to the palmrest assembly.
3. Connect the power adapter port to the connector on the system board.
4. Install the (M2.5x6) and (M2.5x4) screws to secure the display hinges to the system.
Next steps
1. Install the base cover.
2. Exit the service mode
3. Install the SIM card tray
4. Install the microSD-card.
5. Follow the procedure in

Coin-cell battery

Removing the coin-cell battery

Prerequisites
1. Follow the procedure in
2. Remove the microSD-card.
3. Remove the SIM card tray
4. Enter the service mode.
5. Remove the base cover.
6. Remove the WWAN card
7. Remove the WWAN I/O
About this task
NOTE: If the CMOS battery is disconnected from system board for service, there will be a delay during system boot as the
system undergoes RTC battery reset.
for 4G LTE enabled systems.
after working inside your
before working inside your
for 4G LTE enabled systems.
for systems enabled with 4G LTE.
boardfor systems enabled with 4G LTE.
computer.
computer.
Removing and installing components 65