Updating BIOS A03 to A05 on Aurora R4 gets 'Error: Problem allocating memory'

I had this same problem when upgrading A03 to A05 using a FreeDOS bootable USB drive created by Rufus.

To get it working, I needed to add extra files to the FreeDOS installation that came with Rufus. In particular, the FDCONFIG.SYS file includes a few settings related to memory management. I listed the steps below. I'm going to assume that creating a FreeDOS USB boot drive using the USB image from FreeDOS would have been easier and would have worked just as well, but I didn't try that.

1. Use Rufus version 2.18 (latest a time of writing) to create a FAT32 bootable FreeDOS USB drive.
2. Download FreeDOS's USB "Full" Installer from http://www.freedos.org/download/. (FD12FULL.zip)
3. Unzip FreeDOS
4. Use 7-zip to extract all files from FD12FULL.img.
5. You may need to edit your "file explorer options" and un-check "Hide protected operating system files" to see the files mentioned in the next steps.
6. Copy the following extracted items to the root of the USB drive:

• 
  FDCONFIG.SYS
  COMMAND.COM
  HIGHMEMX.EXE (located in FDSETUP\BIN\)

7. Use notepad or a similar text editor to edit FDCONFIG.SYS on the USB drive (don't accidentally update the original copy) so that the paths correctly point to the files we copied to the root of the drive. I didn't update the "COUNTRY=" line, but it worked anyway. I've copy-pasted my version below.


!COUNTRY=001,858:\FDSetup\BIN\COUNTRY.SYS
!LASTDRIVE=Z
!BUFFERS=20
!FILES=40

DOS=HIGH
DOS=UMB
DOSDATA=UMB

DEVICE=HIMEMX.EXE

SHELLHIGH=COMMAND.COM \ /E:2048 /P=\AUTOEXEC.BAT


8. Place your BIOS updates in the root of the USB drive
9. I shortened the names of the BIOS updates on the USB drive to A5.exe and A11.exe to make things easier on the command line. DOS might display a different name for the files if the names are too long.
10. Boot up the USB drive and run A5.exe. Reboot when finished.
11. I booted into windows to make sure everything was okay. Windows crashed at the loading screen once, then the 2nd boot successfully loaded Windows. I think this was caused by a driver problem since it was the first boot with a new GPU installed.
12. I rebooted back into the USB drive and ran A11.exe. This is a scary update because your computer will need to reboot 3 times and the fans will go crazy on the first boot. Another person experienced this as seen on the last post here:
https://www.dell.com/community/Alienware-General/Bios-update-help/td-p/5504888
As for my experience, when I ran the A11 update, I rebooted as prompted after the install. On the first bootup, the fans spun up and I waited at least 30 seconds before holding down the power button to reboot. If I remember correctly, the 2nd reboot occurred automatically a few seconds after booting up. On the 3rd boot, the display took a long time to load, but eventually came up fine.