Deleting Or Changing An Existing System Setup Password; Clearing Cmos Settings; Clearing Bios (System Setup) And System Passwords - Dell Inspiron 14 5402 Service Manual

Use the following guidelines to assign the system password:
● A password can have up to 32 characters.
● The password can contain the numbers 0 through 9.
● Only lower case letters are valid, upper case letters are not valid.
● Only the following special characters are valid: Space, ("), (+), (,), (-), (.), (/), (;), ([), (\), (]), (`).
3. Type the system password that you entered earlier in the Confirm new password field and click OK.
4. Press Esc and a message prompt's you to save the changes.
5. Press Y to save the changes.
The computer restarts.

Deleting or changing an existing system setup password

Prerequisites
Ensure that the Password Status is Unlocked (in the System Setup) before attempting to delete or change the existing
System and/or Setup password. You cannot delete or change an existing System or Setup password, if the Password Status is
Locked.
About this task
To enter the System Setup, press F12 immediately after a power-on or reboot.
Steps
1. In the System BIOS or System Setup screen, select System Security and press Enter.
The System Security screen is displayed.
2. In the System Security screen, verify that Password Status is Unlocked.
3. Select System Password, update, or delete the existing system password, and press Enter or Tab.
4. Select Setup Password, update, or delete the existing setup password, and press Enter or Tab.
NOTE: If you change the System and/or Setup password, reenter the new password when prompted. If you delete the
System and/or Setup password, confirm the deletion when prompted.
5. Press Esc and a message prompts you to save the changes.
6. Press Y to save the changes and exit from System Setup.
The computer restarts.

Clearing CMOS settings

About this task
CAUTION: Clearing CMOS settings will reset the BIOS settings on your computer.
Steps
1. Remove the base cover.
2. Remove the coin-cell
3. Wait for one minute.
4. Replace the coin-cell
5. Replace the base cover.

Clearing BIOS (System Setup) and System passwords

About this task
To clear the system or BIOS passwords, contact Dell technical support as described at www.dell.com/contactdell.
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