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I am trying to upgrade the bios version from A06 to A09 on Inspiron 15R 5537. I have created a bootable usb stick of freedos, tried to run the bios driver but it does not seem to work. All I get is:
C:\>A09.exe
Reading file...
Flash package mode.
Option: -ecb -bios
DOS memory buffer 2 allocate f...