Steps are as follows.
1. First, find [Settings] on the desktop of your phone and click Open.
2. Then swipe down to find [More Settings] on the main screen and click Open.
3. Then find [OTG] in the more Settings interface and click Open.
4. Then turn off the switch behind the OTG function on the OTG interface.
If you want to close it, directly choose other options on the line, so that in the case of shutdown, it will not shut down the reverse charge, and it will be closed!
First of all, open the Settings inside the phone, find and click on the device connection, and then find a usb only charging option, click into, at this time you can see the option of shutdown reverse charging, at this time we only need to choose other options that are not reverse charging.
Huawei reverse charging can not be turned off :1, first turn on the phone, and then find the phone Settings open, 2, click the device connection, 3, there is a usb only charge in the device connection, click in, 4, there are many connection methods under the usb connection option, including shutdown reverse charging, 5, want to turn off then directly select other options.
First of all, click the Settings on the desktop of the mobile phone, then click the option to enter the battery, and then close the switch button on the right side of the wireless backcharging, take Huawei mobile phone as an example
Click the Settings icon on the desktop of Huarong Honor 8 mobile phone to enter the Settings list menu Click the device connection option to enter the usb c option to enter the next step, enter the usb connection mode, the interface option can be selected
There is no backcharge, only fast charge. Unable to close.
There are two kinds of fast charge, one is high voltage and low current, such as 9V, 12V. We usually have 5V phones. The second is low voltage and high current, such as current above 3A.
High voltage fast charge mainly refers to the use of 9V\/2A or 12V\/2A power adapter for charging, this charging method is fast, but there is also a problem of easy heating. The main applications of this technology are Qualcomm QC fast charge and Mediatek PEP fast charge.
Low voltage fast charge, as the name suggests, refers to the low voltage mode to achieve fast charge, the main application of this fast charge scheme is OPPO's VOOC.
The reverse charging of the mobile phone is controlled by the IC power management chip, based on the USB-OTG protocol, which belongs to the underlying hardware protocol function and cannot be directly turned off. If you need to force off, please open the Settings - About the phone - continuously and quickly click [version number] until \"You are already in developer mode\" appears at the bottom of the screen or the device password interface replaces the current interface, then enter the phone password, and then return to the Settings first layer in the Settings home page or system update interface (or search) to find \"Developer mode\" or \"Developer options\". Enable the [Developer Options] function switch in the Developer Options Settings page, then slide to the debugging class, enable the [Always pop up when connecting USB] function switch, continue to slide to the Network or connection class, find the [Select USB Configuration] to turn on the function switch and configure to [Charge only], continue to slide to the Media class, Find [Turn off USB Audio switching] and turn on the function switch.
Note: Turning off the power supply function of the USB interface will cause all non-independently powered USB peripheral devices to be unavailable, please exercise caution.
How to turn off the mobile phone buffer this problem, basically know this problem, once your mobile phone is fully charged without unplugging, you will charge back after shutting down, generally that is the previous mobile phone is with buffer, now according to the development of science and technology, now are smart phone battery, battery full mobile phone will automatically cut off the power, there will be no recoil phenomenon.