1-SD Card format should be exFat.
2-The image should be less than 40 KB. Choose whatever your screen size is. Example (1024x600) The image should be RGB and 8 Bit
3-The image name should be boot_logo.jpg.
Install boot_logo.jpg to the SD card main directory. and insert the SD card while on the device's main screen. The logo updated text should appear on the screen. Turn the device off and on, the new image should appear on the screen :)
Carplay Boot Logo Change
Camecho, podofo, Lamtto