Hello, I think you should check the device's settings to ensure that the SD card is enabled and recognized. Go to the "Storage" or "Storage & reset" section in the Android TV settings menu and see if the SD card is listed. If it's not, try tapping on the three-dot menu or gea...

Hello, I think you should ensure that you are using the correct bootloader for your PCB design. The log indicates that the U-Boot version is "U-Boot 2015.01-00014-g4ef665f (Apr 12 2017 - 13:37:54)." Make sure this version is compatible with the hardware and configuration of your PCB.