Charging icon issue

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Okay so this is whats going on, my phone has started to act up since yesterday, this is what happens: When I turn off, its screen is slow responsive, when I touch it sometimes it feels my touch but nothing happens, if I connect the device to the computer, or to a USB cable charger, the issue dissapears, but when I disconnect the phone, my battery changes between the icon of the battery status, and a battery with a cable on it (as if it was connected or charging) it keeps changing between those two forever, works just fine, but if I turn the phone off and turn it on again, issue reappears, then I have to connect it for it to work properly.


I have already done a factory reset through Settings>About> Reset.


Any thoughts on that?