Thanks Zhenxing.
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I did the installation exactly as you described, but unfortunately no activity was seen on the screen. I can try again by changing the cable and adapter, but I need to be sure of this; when I open vox, the phone's microphone will be used, right? If so, shouldn't it be a quiet environment?
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From what you described, working with mono band and sound would not be something I would prefer.
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I have a Qmx, I haven't soldered it yet. If I'm going to use my Qmx, will it be enough to make a cable between the OTG cable and the Qmx?
TA3ONK