1. AC Question's Avatar
    Samsung galaxy s4 won't charge if screen is active / on. It's really irritating problem. My s4 won't charge if screen is active, even so the "bolt" icon on battery icon is on. Actually it is decreasing battery life (example . battery is 56% and after 10 minutes of being on mobile phone it decreases on 55% and it take very long time to get back to 56%) . I don't know what is the issue here... Is it battery ? Or hardware (USB cable or charger).

    On contrary, if I leave my phone without letting screen on , it's going to charge itself for 3 hours with no problem. Same goes if it is turned off and charged .
    04-27-2015 01:32 PM
  2. FishenFool's Avatar
    Are you plugged into a 2 amp output charger or some cheap generic thing putting putting out 1 amp or less.

    Sent from my SAMSUNG-SGH-I337 using Tapatalk
    04-27-2015 01:43 PM
  3. emlaraal's Avatar
    I'm not teach expert but I am charging with original charger and USB cable I got when I bought my phone.
    04-27-2015 01:53 PM
  4. FishenFool's Avatar
    You should look at battery in settings when it is charging and make sure it says it is charging "AC" otherwise you might have a bad USB connection. Could be caused by the port on the phone, the cable, or the charger.

    Sent from my SAMSUNG-SGH-I337 using Tapatalk
    04-28-2015 02:49 PM

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