You’d be lucky if using an adapter for ch341a will be possible with this motherboard. There are various clamps for SPI programmer tool.
Hello @Sweet_Kitten. I’d like to downgrade from latest BIOS F30 to F28. I have a HP Pavillion 15 ec1000nx and I’ve downloaded the file from HP site. I try to do it using the BIOS management menu but it says “Unable to open signature file”. Could you help, please? I have Windows 10.