How to reverse charge a mobile phone A mobile phone always reverses charging?

For reverse charging in the phone, you can directly open the settings option in the phone, set the current reverse charging mode in the battery settings, and set the current mode.

Hello, after the mobile phone OTG is connected to the data cable, some options will be displayed at this time, such as reverse charging and the like, according to some states on the notification bar, you can adjust the selection to reverse charge.

If you use a vivo mobile phone, models with OTG function all support reverse charging, which can be transferred through the OTG cable to charge digital devices such as mobile phones and bracelets.

The mobile phone does not support reverse charging, and the reverse charging ability damages the mobile phone, because the structure of the mobile phone itself is not suitable for reverse charging.

You can do it directly inside the settings, then click on Battery, and then click on Turn on Reaction Charge on it.

Then contact Huawei's customer service and let Huawei's customer service help you solve this problem, and they will.

What is reverse charging? Is it that the power level drops during charging? If so, there can be two ways to say it, that is, the battery is aging and the battery should be replaced, and the other is that the charging plug is falsely connected, and there is a problem with the charging head, check it yourself.

The charging port may be loose, and it is recommended to change the rear row.

Tool: Huawei Mate20 Pro

Operating system: EMUI

1. Take the wireless reverse charging of Huawei Mate20 Pro mobile phone as an example, open the settings from the desktop home screen, as shown in the figure below

2. Then select the battery option and click on, as shown in the figure below

3. Then turn on the wireless reverse charging switch, as shown in the figure below

4. Finally, put the screen of the Huawei Mate20 Pro mobile phone down, the back side up, and the back of another mobile phone that supports wireless charging face down, showing a + glyph and placing it on the Mate20 Pro, you can wirelessly reverse charge, as shown in the figure below:

Reverse charging of the battery is discharge. If the battery voltage is within the allowable range, reverse charging is discharge, if the battery voltage is lower than the allowable voltage, it will be overdischarged, causing damage to the battery, if the battery is not charged, reverse charging, will cause damage to the battery.

No one has ever thought about it, but the main thing is that the design is useless!

I don't understand the mobile phone circuit, but if you get a light and use the tail plug to connect to the mobile phone charging port, if it can be lit, the theory is that there is a possibility of reverse charging.

Here's how to reverse charge your phone:

Let's take Huawei Mate40Pro mobile phone as an example:

1. Open the settings of the hand slider and click [Battery].

2. Turn on the switch on the right side of [Wireless Reverse Charging], and then you can reverse charge.

Precautions for wireless reverse charging:

1. Please do not turn on the wireless reverse charging function for the charged device, if two mobile phones turn on reverse charging at the same time, one of the mobile phones will randomly switch to the receiving end, which may cause abnormal charging.

2. After the wireless reverse charging function is turned on on the mobile phone, please do not place the mobile phone directly on the metal substance.

3. Please keep the receiving device in the power-on state.

4. Place the receiving device in the center of the back of the mobile phone, and do not place metal substances such as bus cards and coins between the receiving device and the mobile phone.

5. The charging power of wireless reverse charging will be smaller than that of the original wired charger, and the speed will be slower when charging large-capacity equipment, which is more suitable for emergency use in an emergency.

6. When the power level of the mobile phone (without plugging in the charger) is less than 20%, the mobile phone will automatically turn off the wireless reverse charging function to ensure the normal operation of the mobile phone itself and a good charging experience. <>

Taking vivo mobile phone as an example, the method of turning on the reverse charging of the mobile phone is as follows:

1. First find and open Settings on the desktop.

4. Turn on or off the switch behind the OTG function after entering.

Mobile phone, referred to as mobile**or wireless**, was originally just a communication tool, and in the early days, there was a common name for the big brother and the big one, and it was a portable terminal that could be used in a wide range. The mobile phone was first developed from the battlefield mobile machine manufactured by Bell Labs in 1940, and then Martin Cooper, an engineer of the American Motoro Regiment, invented the world's first commercial mobile phone in 1973. In addition to the typical features, modern mobile phones include more features such as cameras, GPS, and internet connectivity, all of which are collectively referred to as smartphones.