Myself according to buy material welding a fe1.1 expanding circuit, but when I plug in usb cable after good welding circuit computer are only detected a port and a port cp2102 were not detected, switch to the seller's, I checked the peripheral circuit, the problem is not found, didn't even recognize the chip I also replaced with a new, but still the chip port cannot be detected, excuse me everybody encountered such a situation? Exactly how to solve? I put my points on all the bosses can experience you help me to analyze analysis,

No. 3 is fe1.1 can identify 2 # 1 can't identify,

This is my drawing the schematic diagram of

This is the seller's schematic diagram
Trouble you help to have a look at it,