NB I've now realised that the USB2.0 port next to the power is the OTG port, however when I select Start on the USB Burning Tool, then connect the power to the GT King and then connect the USB cable, nothing happens at all :(
Uninstall any other version you have and clean your computer...
Reboot and install from the beginning this version of UBT : https://mega.nz/file/Z4MmhRSJ#jw ... juHobue-RmbdK4xcp44
Then give it a try from the beginning pluging the 2 cables at the same time!
Good luck!