1. Please check whether the wireless reverse charging switch has been turned on. The phone setting path is as follows: Set the battery and turn on the wireless reverseTo the charging switch please confirm whether your charging phone power is more than 20% if the phone itself power is less than 20%, please use the charger to charge the phone first, and then wireless reverse charging after the power is higher than 20%.
2, hello, if the reverse charging display abnormal state, it should be your charger or mobile phone caused by a problem.
3, the mobile phone is placed in the wrong position: When the mobile phone is charged through the vehicle wireless charging board, the back of the mobile phone needs to be placed on the charging board in the direction, and the wireless charging function will be activated normally. There's a foreign object between the phone and the charging pad: a handTo use the wireless charging board for charging, it is necessary to ensure that the back of the phone and the wireless charging board are fully fitted.
4. The reasons are as follows: Click the button in the notification bar to enable wireless backcharging. The charged device needs to be placed in the correct position in the center of the rear cover. The device to be charged needs to support the standard Qi wireless charging protocol (for example, AppleWatch is a non-Qi wireless charging device, which cannot be charged through the wireless backcharging function). There should be no metal ornaments or foreign objects between the phone and the device being charged.
5, place the receiving device in the center position on the back of the phone, receive"To charge", after opening, the peripheral can be provided with up to 10W charging power supply urgent charging. Note: After this function is enabled, if there is no charging for other devices for a long time, it will automatically turn off; This function cannot be enabled when the battery life of the phone is less than or equal to 15%.
3. First, turn on the wireless reverse charging function of Huawei mobile phone. Find the "Settings" icon on the screen of your Huawei phone and tap on it. After entering the Settings screen of the phone, find the "battery" option in the screen and click on it. After entering the battery interface of the phone, find the "wireless reverse charging" function in the interface and add this functionSlide the switch on the right to open it.
Reverse charging refers to the function of using the phone as a mobile power source to charge other devices. First use the OTG cable and mobile phone data cable to connect the two mobile phones, and then change the USB connection mode in the notification bar to reverse charging on the power supply side of the mobile phone. There is a premise here that the power supply phone supports OTG, if the other phone does not support reverse charging, the support end will automatically power.
At this stageThe mobile phones on the market basically support the OTG function, but some low-end machines and individual mobile phones will not support it due to cost constraints. If the mobile phone supports OTG, then it basically supports reverse charging, that is, you can use the mobile phone to charge other mobile phones, but the premise is that two mobile phones need to be connected together, the connected medium is a line and an OTG line.
The charging line is positive and negative, the charging process is to rely on the positive electrode, the positive and negative electrode to the negative method of charging, if the case is reversed, they will form a loop, will not charge, so ourThe charger needs to have a positive and negative electrode.
Please note that if you do not charge other devices for a long time, the system will automatically turn off the reverse charging function. In addition, when the phone battery is less than or equal to 20%, the reverse charging function will not be available. About Wired reverse charging: Wired reverse charging requires the use of OTG conversion cables (available separately). Charging can be achieved by connecting the mobile phone and the device that needs to be charged through the OTG cable.
1, first open Xiaomi9, then slide down the screen, open the phone's control center; Then click the wireless reverse charging icon to turn on the function, and then put the device that needs to be charged on the back of the phone. Mi 9, is a mobile phone owned by Xiaomi, the internal code name is Battle Angel, using 39-inch Samsung AMOLED water drop screen, equipped with Qualcomm Snapdragon 855 flagship platform, up to 12GB memory 256GB storage.
2, Mi 9 does not support reverse wireless charging, only support 27W wired flash charging and 20W wireless flash charging, Mi 9pro can support 10W reverse wireless charging. millet9 Supports AI anti-distortion, suitable for group photos, AI recognizes wide-angle scenes, automatically reminds to enter ultra-wide-angle scenes, and supports 4cm macro camera in ultra-wide-angle mode. The Mi 9 supports super night view and supports laser focus at night. Mi 9 moon mode, set to the maximum zoom directly shot the moon.
3, Mi 9 does not support reverse wireless charging. However, the new generation of Mi 9Pro supports wireless charging, charging power reaches 20W, and Mi 9 can be fully filled in one and a half hours after using 20W wireless charging, which is faster than the wired fast charging of Mi 8. The Mi 9 is equipped with 39 inches on the frontWater drop full screen, with a 6mm ultra-narrow chin.