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 Latitude E7270/E7470 System BIOS

Restart required
This package provides the Dell System BIOS update and is supported on Dell Latitude E7270/E7470 for Windows and DOS Operating Systems.
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Fixes & Enhancements

Fixes:
- Fixed screen has one time flash while AC power plug/unplug on Windows OS.
- Fixed not reach to processor Turbo Boost level while heavy loading.
- Fixed item Touchscreen in BIOS may disappear after some power cycle.

Enhancements:
- Updated Intel Reference Code.
- Updated Intel Processor Micro Code.
- Updated Intel Rapid Storage Technology RAID Driver.
Read More

Version

1.2.2, 1.2.2

Release date

26 Jan 2016

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: Latitude_E7x70_1.2.2.exe
File Size: 8.95 MB
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:
725ef36fb0f386517bc9dc17bbe3de20
SHA1:
28acc1be96f6bd179bc44438c1f6991c3c3b64f0
SHA-256:
b45bc4f6c1d68042c4a665062f979e9f2029c3efb1a99edc605a88740d03dc2a

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

Additional details

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Dell Latitude E7270
Dell Latitude E7470
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BIOS Update Executable for Windows/DOS

Download
1. Click Download File to download the file.
2. When the File Download window appears, click Save to save the file to your hard drive.

Run the BIOS update utility from Windows environment
1. Browse to the location where you downloaded the file and double-click the new file.
2. Windows System will auto restart and update BIOS while system startup screen.
3. After BIOS update finished, system will auto reboot to take effect.

Run the BIOS update utility from DOS environment if Legacy Boot Mode(Non-Windows users)
1. Copy the downloaded file to a bootable DOS USB key.
2. Power on the system, then Press F12 key and Select "USB Storage Device" and Boot to DOS prompt.
3. Run the file by typing copied file name where the executable is located.
4. DOS System will auto restart and update BIOS while system startup screen.
5. After BIOS update finished, system will auto reboot to take effect.

Run the BIOS update utility from DOS environment if UEFI boot mode with Load Legacy Option disabled (Non-Windows users)
1. Copy the downloaded file to a bootable DOS USB key.
2. Power on the system, then go to BIOS Setup by pressing F2 and go to "General-Boot Sequence - Boot List Option".
3. Change "UEFI" to "Legacy" of Boot List Option.
4. Click "Apply","Exit" to save changes and reboot system.
5. Press F12, then Select "USB Storage Device" and Boot to DOS prompt.
6. Run the file by typing copied file name where the executable is located.
7. DOS system will auto restart and update BIOS while system startup screen.
8. After BIOS update finished, system will auto reboot.
9. Go to BIOS Setup by pressing F2 and go to "General > Boot Sequence > Boot List Option".
10. Change "Legacy" to "UEFI" Boot Option.
11. Go to "Exit > Exit Save Changes" and reboot system.

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Note 1: You will need to provide a bootable DOS USB key. This executable file does not create the DOS system files.
Note 2: Please make sure you suspend BitLocker encryption before updating BIOS on a BitLocker enabled system.
If you don't enable BitLocker on your system you can ignore it.

Reboot will be required

Need help with BIOS issues?

Find a solution in Dell's BIOS troubleshooting and usage guide.

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