something about USB cable charging

mingkee

Senior Member
May 5, 2006
3,322
794
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Brooklyn, NY
I notice something when using original USB cable.
If you just plug into some USB power supply, it will prompt USB mode.
However, if you short out pin 2 and 3, it won't prompt, so I did some mod on USB lead-in (short extension) cable to
1. disconnect 2 and 3 to source (male).
2. shorten 2 and 3 to destination (Tab, female side).

After that, Tab may or may not show charging, but it charges anyway and it charges faster than just use the cable.