Dell Inspiron 5421, Руководство по обслуживанию

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3. Align and place the WWAN-card bracket on the system board and WWAN card.
4. Replace the single (M2x3) screw to secure the WWAN-card bracket and WWAN card to the palm-rest assembly.
Next steps
1. Install the SIM card .
2. Install the microSD card .
3. Install the base cover .
4. Exit Service Mode .
5. Follow the procedure in After working inside your computer .
Solid-state drives
Removing the 2230 solid-state drive
Prerequisites
1. Follow the procedure in Before working inside your computer .
NOTE: Solid-state drives are fragile. Exercise care when handling the solid-state drive.
NOTE: To avoid data loss, do not remove the solid-state drive while the computer is in sleep or on state.
2. Enter Service Mode .
3. Remove the SIM card .
4. Remove the microSD card .
5. Remove the base cover .
About this task
NOTE: Depending on the configuration ordered, your computer may support a 2230 solid-state drive, or a 2280 solid-state
drive in M.2 slot.
NOTE: This procedure applies only to computers shipped with a 2230 solid-state drive installed in M.2 slot.
The following image indicates the location of the 2230 solid-state drive that is installed and provides a visual representation of
the removal procedure.
Removing and installing components 27