They no longer make the mother board for the Creality CR10S Pro V2. Victor Bard taught me how to install a 4.2.7 Board with V2 display. The printed bracket as a problem and the SSD card became a Pita. Then he had a video on Klipper. As there was an issue with the eprom or ssd on the 4.2.7 I went to the SKR mini E3 V3 board. It is a superior design and works better than I expected with klipper, moonracker and mainsail. Form an 8 bit board to a 32 bit board and raspberry Pi 4B with klipper. The CR 10S Pro V2 original display left a blank hole where it used to be. I put in a second buck boost and raspberry Pi Zero 2 with 4 inch display that boots to the klipper address and it fills the hole perfectly. I can control the printer from the printer from the display, phone or computer.