https://www.kjctech.net/yoga-3-pros-2-in-1-charging-port/?utm_source=rss&utm_medium=rss&utm_campaign=yoga-3-pros-2-in-1-charging-port Tue, 24 Jan 2023 18:21:03 +0000 hourly 1 https://www.kjctech.net/yoga-3-pros-2-in-1-charging-port/comment-page-1/#comment-220684 Thu, 25 Feb 2021 03:16:40 +0000 http://www.kjctech.net/?p=2699#comment-220684 […] Source: Yoga 3 Pro’s 2-in-1 Charging Port | KC’s Blog […]

]]> https://www.kjctech.net/yoga-3-pros-2-in-1-charging-port/comment-page-1/#comment-210405 Thu, 26 Mar 2020 01:18:29 +0000 http://www.kjctech.net/?p=2699#comment-210405 Use 220 ohm resistor between ground and blue. It will eork

]]> https://www.kjctech.net/yoga-3-pros-2-in-1-charging-port/comment-page-1/#comment-172640 Sat, 02 Jun 2018 16:54:43 +0000 http://www.kjctech.net/?p=2699#comment-172640 20V VCC and GND are wired to standard USB VCC and GND pins (pin 1 and 4). There is a third wire inside the cable, colored blue, that connects to both “extra” pins.
I tried to wire black and white connectors of the extra cable to an old Lenovo 20V charger, leaving blue wire unconnected. Yoga 3 Pro won’t charge that way.
If I plug the cut wire into original charger, both white and blue wires provide 5V. Sadly, there is no info on how to make this work (usually it takes a resistor of certain value).

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