chaton78 wrote:
The debug UART is set at 1500000 (not a typo)
HW and SW flow controls off

Is there any way to change this, either through re-compile or run-time?

What is the baudrate of the serial console? I have seen information that indicates the RK3328 defaults to1500000bps and confirmed this in the uboot code. I have built friendlywrt myself and attempted to change the baudrate from 1500000 to 115200: u-boot/configs/rk3328_box_defconfig:CONFIG_SYS_EXTRA_...