Installing The Sim Card - Dell Latitude 5421 Service Manual

Steps
1. Insert a pin into the release hole to release the SIM card tray.
2. Push the pin to disengage the lock, and eject the SIM card tray.
3. Slide the SIM card tray out of the slot on the computer.
4. Remove the SIM card from the SIM card tray.
5. Slide and push the SIM card tray back into the slot.

Installing the SIM card

Prerequisites
If you are replacing a component, remove the necessary component before the installation procedure.
NOTE: SIM card or SIM card tray removal is only available on systems that are shipped with WWAN module. Hence,
removing procedure is only applicable for systems that are shipped with WWAN module.
About this task
The following image provides a visual representation of the installation procedure.
16 Removing and installing components