Just a friendly reminder for those flashing custo. firmware or planning on setting up the new Sonic Pad, make sure to check your main board CPU and board type before attempting to flash firmware. There are two different CPUs used on the S1 printers and you need to check inside your printer to confirm what you have. Notice in my picture my main board is using the STM32F401 CPU and my board name (top right in the photo near the Creality logo) is CR-FDM-v24S1-301. Thanks!