Hi dubjulie,

I suggest you to download Latest BIOS software to a bootable USB device. Firstly Connect the USB device after restarting the computer while tapping F12 key. This gives you boot options from which you need to select USB device. You should see the BIOS software which has already been copied to the USB driver. Select the file and start the application. Ii recommend you to connect the AC adaptor while flashing BIOS. Restart your once this process is complete.

Follow the steps mentioned below:

1.Download  the file: T3600A04.exe (5MB) to USB drive

2.Boot from the USB to the DOS prompt.

3. Run the file by typing T3600A04.exe (where y is the drive letter where the executable is located).

Please revert for any further queries and I would be glad to help you further

Thanks & Regards
Rakesh R
#iworkfordell

And how make a bootable USB with only the file of update ?

Because, if I copy only T3600A04.exe on my USB, the USB is not recognized when I boot my PC !

Thanks

Ok, thank you.

But how can I open a dos prompt ?

With the DVD of windows, I can access to the command. And I can see my file in my USB.

BUT when I try to run T3600A04.exe, The prompt says me :

"The sub-system required to take care of the type of image is not present"

How run this executable?!!!

It's the good prompt or can I find another? and where?

Thanks

Hi dubjulie,

I apologize for the wrong information given in the previous post. I would like to inform you that we will be able to do the BIOS update only in the operating system. It wont work without or outside the operating system.

Please let us know in case of any queries

Thanks and regards
Harish R
#iworkfordell

I did all you suggested but when I get to run the bios.exe program it says that the programm cannot be run in DOS mode. Not sure you can use this process for the latest dell bios executables?

Hi echrmar,

As informed by DELL-Harish R  you will never be able to flash BIOS in DOS prompt or outside the Operating system. The system should boot to the desktop to perform this step.

I have almost the same issue i have to update my BIOS on my Inspiron 3721 to the latest BIOS available, but i am not running windows (but the latest ubuntu) on this machine.

I did follow the standard procedure to create a DOS usb stick, i copied and tun the .exe in it, and it return Test then nothing I am in deep trouble i have the fan issue and i have 10 laptop to install for my company.

Here is the bios :

Worked like a charm. Thanks man. Silly Microsoft Support.

Follow the link below for instructions on how to build a free MS WinPE boot disk. Copy the 0760-A16.exe (example) BIOS file to the root of the USB drive in windows and then boot the target machine and tap the F12 key and select the USB drive.

You may have to navigate to the folder and/or drive letter to run the executable (i.e. cd\ and "cd D:" or "cd E:") Your executable will be at root of the drive.

http://technet.microsoft.com/en-us/library/dd744530(v=ws.10).aspx

I literally created an account to tell you how amazing you are HelpfulDellUser, I tip my hat to you good sir or madam :D

This additional documentation automates the startup of the BIOS flash executable, which I'm sharing here:

How to build bootable Flash Drive for flashing BIOS

1. Download and install the AIK Installation Kit for Windows 7 from:

http://www.microsoft.com/en-us/download/details.aspx?id=5753

NOTE:

If you've done the Mount/Unmount commands listed below previously on the same machine,

you may need to run the following command to prevent getting errors like "files are already mounted", etc.:

Dism /cleanup-wim

This performs quite a few operations that wipe the slate clean on your workstation and make it ready for a new mount/unmount cycle.

After running the cleanup-wim, you will also need to delete the c:\winpe_x86 folder and then you can start a new mount/unmount cycle.

1. Open “Deployment Tools Command Prompt” as administrator and type: copype.cmd x86 c:\winpe_x86

The script creates the following directory structure and copies all the necessary files for that architecture.

For example,

\winpe_x86

\winpe_x86\ISO

\winpe_x86\mount

1. Copy the base image (winpe.wim) into \Winpe_x86\ISO\sources folder and rename the file to boot.wim.

copy c:\winpe_x86\winpe.wim c:\winpe_x86\ISO\sources\boot.wim

1. Mount the boot.wim to c:\winpe_x86\mount directory for editing and type the following commands:

Dism /Mount-Wim /WimFile:C:\winpe_x86\ISO\sources\boot.wim /index:1 /MountDir:C:\winpe_x86\mount

1. Edit the startnet.cmd file.

edit c:\winpe_x86\mount\windows\system32\startnet.cmd

                Enter the commands below:

D:\o760-A16.exe     (runs the BIOS update placed on the root of the thumb drive.

Exit (this will allow the machine to automatically reboot after clicking “continue” button on BIOS update.)

1. To unmount the file system and compile back to boot.wim

Dism /unmount-Wim /MountDir:C:\winpe_x86\mount /Commit

1. Insert disk and format and build the disk and make bootable:

Open AIK command prompt and type:

Diskpart

list disk (if you want to check disk # for your flash drive

select disk 1

clean

create partition primary

select partition 1

active

format quick fs=fat32

assign

exit

1. Copy your finished file structure to the flash drive

xcopy C:\winpe_x86\iso\*.* /e F:\

1. Place the BIOS update file on the root of C: type:

copy c:\o760-A16.exe F:\ (to copy it to the flash drive F)
You are now ready to test boot your BIOS-updating flash drive.

Incidental lessons I’ve learned from this:

The X:\ drive correlates to the %systemdrive% variable (which is the RAM drive created in memory).

So if you enter commands in the startnet.cmd file using %systemdrive% they will run at the root of X:\ , (which is the RAM drive or drive created in the RAM).

Well, I've been taking information from the web for so long, I thought it was time to give back something :-)