BIOS won't update

Not sure if the BIOS update is checking your battery level and not letting you update.

You can update BIOS using a bootable USB flash drive that has FreeDOS. I used this metho on E6400.

Welcome to the Dell Community   @B1mb20D 

First option:

Create a new folder on your desktop named “BIOS Update”

Then download your BIOS update.

https://dl.dell.com/FOLDER04886858M/1/Latitude_E6420_E6420ATG_A25.exe

Copy the update to that folder you just created.

Close all Windows and Apps you may have open.

Go to the folder and right click on the update file and “Run as Administrator”

Second option:

Create a bootable USB drive using “Rufus”

https://rufus.ie/

Copy the BIOS update to the bootable USB drive you just created.

Insert USB drive, power-on and start tapping the “ F12 “ key.

Boot from USB and run the BIOS update.

After reboot test and post any results.

Best regards,

U2

NOTE:

I created a bootable 16GB USB drive using "Rufus"

I have the latest BIOS's for 15-20 different models on it.

I use it dozens of times a week and it has not failed once.

If the battery is not at 10% it informs you it will not run the update.

Thank you for your guide.

In using Rufus, I don't know what I should have in Drive Properties and Format Options. More so, I don't know where I should place the BIOS Update copy.

If you can kindly assist me in the following steps, as I'm not familiar with the use of Rufus and in creating of bootable drives, that would be highly appreciated.

Thanks.

@B1mb20D 

First thing would be to download "Rufus" to your desktop.

Then install the USB drive you want to use.

"WARNING" All data will be lost.

Then double click on Rufus.

For demonstration purposes I named a 8GB USB drive "TEST" formatted FAT32.

Choose your USB Device "TEST"

Choose your Boot Selection "FreeDOS"

Click on "Start"

Then follow the instructions above.

Regards,

U2

Thank you for the detailed guide.

Following through the steps of your previous post, this is what I arrive after the second-to-the-last:

 ...and I'm stuck. How do I move past the second picture?