@Lost_N_BIOS waiting for my CH341A in the mail. flashrom also supports CH341A, maybe easier than CH341A tools since it auto detects chipThank you @Pacman for this guide!
Can I use any model Raspberry pi to do this?
@JustWannaChangeMac I think as long it has all needed ports and pins it should work, however, it will be less expensive to buy an older PI (model B or 2 as in the first post) than a newer one in case you don't have any.