I have replaced the original power supply with the one that is 5V 2.4A and I also tried a couple of phone chargers.
video preview, the cable is the USB-A > round jack that I originally created when I replaced the original power supply.
I also have a A-A cable that I tried to use with the USB port as well. The very first time I connect it, the led shows red for less than a second, then a blue color led flashed shortly for 2 really short times. Then, when I disconnect it and connect again, I get again short red let but this time no short blue led. If I wait for some minutes, the red and short 2 blue flashes come back, but I never get the constant blue led as it used to be if I remember correctly with this Vero 4K.
So, as a result, I tested both the cable I used to have USB > Power and USB A-A > USB port with the same result > red led, then blank.
BTW, I tried the power supplies with RPi 3 with OSMC installed and it works OK.