yes! you are right! it is having ch340g chip.
my com port is also correct, baud rate is also correct, driver is also updated ,still not working:thinker:
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i found that it is looks so similar with wemos D1 and i also found printed D1 on board,
https://www.google.co.in/search?q=wemos+d1+f&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjjuPr1iMfRAhUJOY8KHQ_nAEgQ_AUICSgC&biw=1366&bih=638#tbm=isch&q=wemos+d1+mini
only 1-2 pins working correctly , while another are always in on position! kindly check this .
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does it require any external power source?