Dell Latitude 5521 - Coin-Cell Battery; Removing the Coin-Cell Battery

10. Follow the procedure in After working inside your computer.
Coin-cell battery
Removing the coin-cell battery
Prerequisites
1. Follow the procedure in Before working inside your computer.
CAUTION: Removing the coin-cell battery resets the BIOS setup program’s settings to default. It is
recommended that you note the BIOS setup program’s settings before removing the coin-cell battery.
2. Enter Service Mode.
3. Remove the SIM card.
4. Remove the microSD card.
5. Remove the base cover.
6. Remove the memory module.
7. Remove the 2280 solid-state drive or 2230 solid-state drive.
8. Remove the WLAN card.
9. Remove the WWAN card.
10. Remove the battery.
11. Remove the heat sink - UMA or discrete based on the system configuration.
12. Remove the assembly inner frame.
About this task
The following images indicate the location of the coin-cell battery and provide a visual representation of the removal procedure.
Steps
1. Disconnect the coin-cell battery cable from the connector.
2. Remove the coin-cell battery from the palm-rest assembly.
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Removing and installing components