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

Before updating, please read the installation instructions and important information noted below.

Dell Inspiron 7777 AIO / Inspiron 5477 AIO System BIOS

Restart required Installed This file was automatically installed as part of a recent update. If you are experiencing any issues, you can manually download and reinstall.
This package contains the Dell system BIOS update for Dell Inspiron 27 All-in-One 7777 and Inspiron 24 All-in-One 5477 systems that runs the Windows and DOS operating systems. BIOS is a firmware that is embedded on a small memory chip on the computer's system board. It controls the keyboard, monitor, disk drives and other devices. This update fixes an issue where the graphic driver stops working intermittently, when an HDMI to VGA dongle is plugged in.
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Fixes & Enhancements

Fixes:
- Fixed an issue where the graphic driver stops working intermittently, when an HDMI to VGA dongle is plugged in.

Enhancements:
- N/A
Read More

Version

1.2.5, 1.2.5

Release date

25 Feb 2019

Download Type

System BIOS

Category

BIOS

Importance

Recommended
Dell Technologies recommends applying this update during your next scheduled update cycle. The update contains changes to maintain overall system health. It ensures that the system software remains current and compatible with other system modules (firmware, BIOS, drivers, and software) and may include other new features.
Available formats
File Format: CPG BIOS Executable for Windows/DOS
File Name: Inspiron_7777_5477_AIO_1_2_5.exe
File Size: 7.09 MB
This is a large file. Depending on your connection speed, it may take some time to download.
Format Description:
This file format consists of a BIOS executable file. The Universal (Windows/MS DOS) format can be used to install from any Windows or MS DOS environment.
To ensure the integrity of your download, please verify the checksum value.
MD5:
57ec170c5cf3085fe73642faa0b0d86d
SHA1:
8c67c2919bb3c5154d78c365b290b948a15b98fd
SHA-256:
157f200d7114f2ab1fb783bc37b668d86017db1dd723ce67e0b8fa7e125da3e9

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

Additional details

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Dell Inspiron 24-5477,27-7777
Note 1: Before updating the BIOS, ensure that you suspend BitLocker encryption on a BitLocker-enabled system. If BitLocker is not enabled on your system, you can ignore this step.
Note 2: Do not turn off the power or interrupt the BIOS update process during the update.

Run the BIOS update utility from Windows environment.

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.

Need help with BIOS issues?

Find a solution in Dell's BIOS troubleshooting guide

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