M1530 boot disk?

I am trying to create a bootable CD or bootable USB flash drive from which to run a Dell bios update.
It seems I keep getting close but then something fails.
For example, I followed these instructions but after a few seconds the Windows 98 splash screen stops moving and nothing happens.
I've tried FreeDos on a usb flash drive, but I get "Bad or missing command interpreter". I tried one suggestion from the FreeDos site but nothing changed.

I need the boot disk to downgrade from bios A12 to A09 to hopefully solve my battery charging problems. This is a known fix.
EDIT: The battery level is too low, and the bios update won't work unless the battery is at least 10% charged. Running the bios update from a boot disk with the /forceit command line argument is supposed to get around this.

Can someone tell me how they've created a boot disk (CD or usb flash) that will work on the M1530?

Thanks for any help
Ion

 

You dont need a boot disk to down grade just run your A09 BIOS and your done..

USB boot device made easy. http://www.bootdisk.com/pendrive.htm

 

Oops, I forgot to mention that the battery level is too low, and the bios update won't work unless the battery is at least 10% charged.
One work around is to run the bios update off a boot disk with the /forceit argument.

Otherwise, yeah, you're right. In general the bios update could just be run.

 

I was able to create a working boot flash drive following these instructions.

I reverted my bios to A09 and at least now my laptop thinks my battery is 100% charged. Whether it is truly back to normal is yet to be seen.

Ion