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Up until very recently, I thought that USB C was symmetrical, that it could be plugged in either way and it always acted the same.

I now have two phones that both behave in the same manner. (HTC U11 life and Sansumg Galaxy S8) When using the factory charger and cord, connecting the plug in one orientation causes the phone to slow charge and flipping it over causes the phone to fast charge.

Was my assumption wrong to begin with or is something else the matter?

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  • Did you try another cable? – Άνδρας Jul 4 '18 at 20:40
  • @alex.s two cords in fact – vini_i Jul 4 '18 at 21:03
  • Afaik usb-c plug pinout is not completely symmetrical. A couple of symmetrical pins have different names so they may have different functions. This maybe the reason. – Άνδρας Jul 4 '18 at 21:07
  • My answer to a similar question: android.stackexchange.com/a/193997/3573 – Morrison Chang Jul 4 '18 at 21:13
  • Not as per standards. Type C does away with guessing and struggling with the right way to connect. My guess is that your cables are not as per standard – beeshyams Jul 5 '18 at 11:12

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