Hello 5kft,
I have Orange Pi Zero Plus and I have the same problem with CPU. Freq is stilll on 816 MHz. I have used your patch and compile a new image throught Armbian building, but it was adding me only 240 MHz and 648 MHz and not any FQ above 816 MHz. Can I use your patch on Orange Pi Zero Plus or I need other one? I was soldered BSN20 MOSFET on the right place and nothing happend...
Thank you for your time.