Flashing BIOS update on Dell XPS 13 (2015) [duplicate]

I have been trying to flash my BIOS to upgrade it to version A05, as suggested to me by Dell (since my computer has some bugs that make it unusable).

I created a FreeDOS disk with Unetbootin, copied the file from Dell on there; 9343_BIOS_Rev_A05.exe ; and when I boot the disk, the file doesn't seem to be on there.

I also read some people the image (I don't really have an image, but an exe file), in /boot/xxxx, but I use grub instead of sputnik's default.

I tried running the exe with wine to extract it, but it gives an error. Any ideas? I don't have a UEFI system.

Solution 1:

Only UEFI system method :

There is now an easier way to install BIOS update. Simply run :

wget http://downloads.dell.com/FOLDER03172775M/1/9343_BIOS_Rev_A05.exe
sudo cp 9343_BIOS_Rev_A05.exe /boot/efi/

Boot in your computer BIOS (hit F12 when Dell's logo is displayed) then select Bios Flash Update and the update will be installed.

Successfully tested on my XPS 13 (9343, 2015) with A05 update.

Successfully tested on XPS 13 (9350) with XPS_9350_1.3.3.exe, too.

(Inspired from Arch Linux Wiki)