I figured out a way to downgrade the BIOS in the Samsung Series 9, but it should work for any modern day Samsung laptop*. Keep in mind, I am no expert, so use at your own risk. These instructions easily worked for me without any complications.
*Confirmed to work on the SS9, SS7, and SS5. These instructions are dependent on whether your system uses Winflash or Afuwin to update the BIOS. If your extracted "__Samsung_Update" folder does not contain either BIOS update software nor a BIOS...
Samsung Laptops - Roll Back Bios Updates?
*Confirmed to work on the SS9, SS7, and SS5. These instructions are dependent on whether your system uses Winflash or Afuwin to update the BIOS. If your extracted "__Samsung_Update" folder does not contain either BIOS update software nor a BIOS...
Samsung Laptops - Roll Back Bios Updates?