Those instructions are for a laptop, so there is no battery that can be removed. The instructions for the R9 are similar. It is called removing flea power: R9 flea power    If the system boots up again and works properly then there's no need to worry about the BIOS update. A BIOS should only be updated if you experience an issue that is resolved by the new BIOS release, or you need a new feature that is made available in the new BIOS.
Hello all, My daughter has a R9 and she updated her BIOS last night and now she is stuck with a black screen. Computer seems on but nothing is being shown on the screen which is properly connected through a HDMI cable. Any idea on the cause and how to fix this?
Aurora R9, black screen after BIOS upgrade