Each great god! As shown in figure is the motherboard Tmall little sugar, dozen ray before then is out of order, open on see there is no problem, but only the light there is no other reaction, I think can salvage once, to burn the firmware of what, as shown in figure on the mainboard has six lines, touch clear two root power, sought the remaining four is a serial port line, but how to connect the four wires, is directly connect usb, or want to go to the TTL, join order is what ah, small white help

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