Bcm63381b0 Firmware 'link' -

Even with the correct firmware, problems can arise.

Push the reset button (using a paperclip) for 10 seconds to clear any residual settings. This ensures a clean upgrade. bcm63381b0 firmware

If you want custom firmware, look for “CFE” (Common Firmware Environment) bootloader modifications—but be prepared to recover via UART serial. Even with the correct firmware, problems can arise