Click on the ellipsis icon ( ... ) or the path button at the top of the interface.
Because there are many "fake" versions of these boxes, always verify your board's version (V1.2 is common for the EP_68) before proceeding. Firmware Rk3128 Mxq Ep 68
The AndroidTool will change from "No Devices Found" to "Found One LOADER Device." Click on the ellipsis icon (