Hi there,
By default, BBBlack should prioritize boot up to microSD card.
I don’t know how you manually flash your image to microSD card but here is my advice:
- You should use a microSD card storage <=32GB in case need to flash image from microSD to eMMC (larger storage may cause failure during flash process)
- You should use “balenaEtcher” software to flash your image to microSD card (balenaEtcher will extract the image, format the microSD card, and flash the image to microSD card)
- It is recommended to power up BBBlack with 5V adapter under normal working condition or flashing image to BBBlack. USB is recommended for communication with PC.
- You can download image from this forum to test your device both “eMMC flasher image” and “microSD image”
Debian 11.x (Bullseye) - Monthly Snapshot - 2023-09-02