AWR1843BOOST: I can't read com port

Part Number: AWR1843BOOST
Other Parts Discussed in Thread: UNIFLASH

Tool/software:

I connect the AWR1843boost via USB, but no COM port appears. I have used Uniflash and the online version with the extension, but it has not worked. I have also installed some drivers. I have tried it on another laptop with a different USB cable.

It's possible that an error occurred because I tried to power it with an external power supply. But I don't think so. I know that the pcb has internal protection when someone connects two sources (usb and jack).

Maybe I need to do something on the circuit board first? The SOP jumpers are set to 101 (flash programming). Any ideas? Thanks in advance. =)