Dell Inspiron 5505, Руководство по обслуживанию

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Flashing BIOS (USB key)
Steps
1. Follow the procedure from step 1 to step 7 in " Flashing the BIOS " to download the latest BIOS setup program file.
2. Create a bootable USB drive. For more information see the knowledge base article SLN143196 at www.dell.com/support .
3. Copy the BIOS setup program file to the bootable USB drive.
4. Connect the bootable USB drive to the computer that needs the BIOS update.
5. Restart the computer and press
F12 when the Dell logo is displayed on the screen.
6. Boot to the USB drive from the One Time Boot Menu .
7. Type the BIOS setup program filename and press Enter .
8. The BIOS Update Utility appears. Follow the instructions on the screen to complete the BIOS update.
Recovering the operating system
When your computer is unable to boot to the operating system even after repeated attempts, it automatically starts Dell SupportAssist OS
Recovery.
Dell SupportAssist OS Recovery is a standalone tool that is preinstalled in all Dell computers installed with Windows 10 operating system. It
consists of tools to diagnose and troubleshoot issues that may occur before your computer boots to the operating system. It enables you
to diagnose hardware issues, repair your computer, back up your files, or restore your computer to its factory state.
You can also download it from the Dell Support website to troubleshoot and fix your computer when it fails to boot into their primary
operating system due to software or hardware failures.
For more information about the Dell SupportAssist OS Recovery, see Dell SupportAssist OS Recovery User's Guide at www.dell.com/
support .
Flea power release
About this task
Flea power is the residual static electricity that remains on the computer even after it has been powered off and the battery has been
removed. The following procedure provides the instructions on how to conduct flea power release:
Steps
1. Turn off your computer.
2. Remove the
base cover .
3. Remove the 3-cell battery or 4-cell battery .
4. Press and hold the power button for 15 seconds to drain the flea power.
5. Install the
3-cell battery or 4-cell battery .
6. Install the base cover .
7. Turn on your computer.
Flashing the BIOS
About this task
You may need to flash (update) the BIOS when an update is available or when you replace the system board.
Follow these steps to flash the BIOS:
Steps
1. Turn on your computer.
2. Go to
www.dell.com/support .
3. Click Product support , enter the Service Tag of your computer, and then click Submit .
Troubleshooting 77