Warning: Do not turn off your computer or disconnect from your power source while updating the BIOS or you may harm your computer. During the update, your computer will restart and you will briefly see a black screen.

Dell Precision 5520 System BIOS

Restart required
This package contains the BIOS update. BIOS is a firmware that is embedded on a small memory chip on the system board. It controls the keyboard, monitor, disk drives, and other devices.

Fixes & Enhancements

Fixes:
- Fixed the issue where the touchpad does not work when systems with Windows 7 operating system resumes from sleep mode.
- Fixed the issue where the TPM option disappears from the BIOS setup menu intermittently.

Enhancements:
- Reduces Deferred Procedure Call (DPC) latency for real-time task performance enhancement, such as audio playback.

Version

Version 1.16.0, 1.16.0

Category

BIOS

Release date

07 Aug 2019

Last Updated

07 Aug 2019

Importance

Available formats

File Format: Non-Packaged
File Name: Precision_5520_1.16.0.exe
Download Type: HTTP
File Size: 9.73 MB
Format Description:
This file format consists of a BIOS-executable file. To use it, download the file and copy it to a DOS-bootable USB flash drive, then boot the system to the USB flash drive and run the program.
To ensure the integrity of your download, please verify the checksum value.
MD5:
702f467b391f31d293499ffd913aa398
SHA1:
158da2661d20c35cee36033e672ece21c2f46bd5
SHA-256:
3733fc7015fb463e80762a4f3047d8d64efa821502d5aaebf015cfa60ebe93a3

By downloading, you accept the terms of the Dell Software License Agreement.

Precision 5520 System BIOS
Updating the BIOS from Windows

Note 1: Before updating the BIOS, ensure that you suspend BitLocker encryption on a BitLocker-enabled system. If it is not enabled on your system, you can ignore this step. For information about how to disable BitLocker, see How to Enable or Disable BitLocker with TPM in Windows at support.dell.com.
Note 2: Do not turn off the power or interrupt the BIOS update process during the update.

Download and Installation
1. Click Download File, to download the file.
2. Click Save to save the file to your hard drive.
3. Browse to the location where you downloaded the file and double-click the new file.
The system restarts automatically and updates the BIOS at the system startup screen. After the BIOS update is complete, system restarts again.

Updating the BIOS from DOS (Non-Windows users)

Note 1: Before updating the BIOS, ensure that you suspend BitLocker encryption on a BitLocker-enabled system. If it is not enabled on your system, you can ignore this step. For information about how to disable BitLocker, see How to Enable or Disable BitLocker with TPM in Windows at support.dell.com.
Note 2: Do not turn off power or interrupt the BIOS update process during the update.

Installation
Note: You must provide a bootable USB drive. This executable file does not create the DOS system files.
1. Copy the downloaded file to a bootable USB drive.
2. Power on the system and then Press the F12 key.
3. Select USB Storage Device and boot to the DOS prompt.
4. Run the file by typing following command. For example:
C:\ Precision_5520_X.Y.Z.exe
Where C is the drive letter of the USB device where the executable file is located and Precision_5520_X.Y.Z.exe is the name of the downloaded file.
The system restarts automatically and updates the BIOS at the system startup screen. After the BIOS update is complete, system restarts again.

Drivers help and tutorials