You should only copy one of the two BIN files to the root or lowest directory on the card for any update. The first file to be updated is A2000201.bin. After that file you need to remove that file from the media and then use B2000201.bin.
You can not use the Compact Flash Micro Drive card. The Compact Flash Card needs to be the fully solid state card.
See my later post with the links to the Nikon detailed instructions in the PDF format. They are very detailed and 9 pages long with illustrations.
You can see if your local Nikon authorized dealer will help your or have Nikon USA Service upgrade your firmware.