1, first open the phone, and then find the \"Settings\" option on the mobile desktop, click to enter.
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2, in the open Settings page, find the \"device connection\" option, click to enter.
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3, in the device connection page, different models of mobile phones, the page listed content will be different, but you can find the \"USB\" option, click the option to enter the next operation page.
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4, in the open \"usb connection mode\" page, you can see the current USB connection mode, including reverse charging mode, if the current use of this mode, the mobile phone will be charged for the connected device
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5, if you want to turn off reverse charging, then just modify the usb connection to other ways, if you want to charge the phone, then you can modify the usb connection to \"charge only\".