1. The CB1 couldn't be connected to the PI TFT screen. The DSI/CSI port will only work while using CM4.
2. The PI4B should be used with CB1 or CM4 core board to run Klipper.
👉About the CB1 updating OS image.
OS image for CB1: https://github.com/bigtreetech/CB1/releases
CB1 source code: https://github.com/bigtreetech/CB1-Kernel
👉Files for Download