Battery; Lithium-Ion Battery Precautions - Dell Latitude 5421 Service Manual

About this task
NOTE: Latitude 5421 supports two memory slots.
The following image indicates the location of the memory module and provides a visual representation of the installation
procedure.
Steps
1. Align the notch on the memory module with the tab on the memory-module slot.
2. Slide the memory module firmly at an angle, into the memory-module slot.
3. Press the memory module down until it clicks into place.
NOTE: If you do not hear the click, remove the memory module and reinstall it.
NOTE: Repeat step 1 to step 4 to install any other memory modules in your computer.
Next steps
1. Install the microSD card.
2. Install the SIM card.
3. Install the base cover.
4. Exit Service Mode.
5. Follow the procedure in

Battery

Lithium-ion battery precautions

CAUTION:
● Exercise caution when handling Lithium-ion batteries.
After working inside your computer.
Removing and installing components 33