Help with klipper

Hello everyone I am in need of major assistance. I have a SKR Mini E3 V3, BTT Pi4b + CB1, EBB SB2209 CAN, Knomi 2, BTT U2C, BIQU Microprobe and for the love of all that's mighty I can't get klipper running or working. Everytime I try and flash firmware it can't find something, it's always something. Can someone help me out with a breakdown on the steps to make and flash firmware.