Look up an image diagram for one, videos get easily outdated and useless.I would love to see a video of the install of this kit. There's none on YT, only the older models.
Sthetix makes great tutorials on stuff like this.Just watch the most recent of the OLED Hwfly install videos by Sthetix. The guy knows what he's doing and there's nothing that changes between Picofly and Hwfly from a soldering point of view.
Indeed, but only the flex cable. It doesn't show whether you need to solder other wires or if that new flex cable replaces the rest of the wires and you just need to connect it to the board.He actually has a video on his page that specifically shows how to install the new flex.
(If you want my personal opinion though: I don't see the benefit of that flex cable. I prefer using AWG36 enamled wire)