1, this situation is not normal, the general mobile power supply will not make a sound. The reasons for this situation may be: 1, there may be water vapor on the mobile power motherboard, resulting in a slight short-circuit sound on the motherboard. 2, mobile power motherboard in the process of boosting the sound, but the sound is usually very small, almostI can't hear you.
2, personal think and charging equipment, millet 80W wireless charging base built-in cooling fan, charging the default open speed wireless charging mode (feel the noise can be manually closed), we can hear the fan in the process of charging "buzz" sound, hand near the bottom of the wireless charging base, can also feel the cool wind blowing out of the fan. I hope I can help you.
3, it means that the mobile phone charger is not connected well, you will re-check the charging head and data cable, and then connect it well for charging, if it can not be charged, it means that the data cable or power plugThe head is broken. Replace it with a new one.
4, this is often caused by poor data line contact, replacing a good data line can solve the problem, after the replacement or can not be used is the mobile phone problem, need to be repaired. When charging, ding-dong ding-dong is the phone switches between charging and disconnecting two states.
5, the charger is plugged in to charge, there is a buzzing sound, which should be cold in winter, not the best temperature range for the normal use of the charger, so the fan rotates slowly at the beginning, there is a current sound. It could be the weather. It could be the noise from the ballast circuit. Pass oneFor some time, the circuit heats up, and the temperature reaches a normal temperature range used by the charger, so it can be used normally, so the buzzing sound disappears.
6, the charger and the power socket is in poor contact: the charger and the power socket are in poor contact, and the current transmission will be unstable, resulting in the phone constantly switching the charging state and making a sound. Try re-inserting and unplugging the charger, making sure the plug is tightly connected to the socket. Poor contact between the data cable and the mobile phone charging interface: poor contact between the data cable and the mobile phone charging interface will also lead to unstable current transmission, and the mobile phone will continue to emit a charging prompt tone.
Normal. Wireless charging is through the wireless way to transmit power and the conventional power cord connection mobile phone charging method is different, wireless charging only need to put the mobile phone on the charging board can be carried outCharging, which is a new type of charging method, is through the principle of electromagnetic induction, the energy of the electromagnetic field into electricity, at work, the electromagnetic coil is under pressure, it will produce the corresponding vibration, and then emit sound, so wireless charging sound is normal.
No noise. The 55W charger charges quickly. The Mi 10S is a mobile phone from Xiaomi that will be officially released on March 10, 2021. The phone is equipped with the Snapdragon 870 flagship platform, and has a professional high-color precision high-brush curved screen, a 100-megapixel movie camera, 4780mAh large battery, and supports 30W wireless charging.
When the mobile phone is being charged and turned on, the internal circuit of the machine and charger is working, and there will be a slight AC electric sound. If the sound is too loud, please take the purchase invoice, repair card, machine and charger to the service center, engineers check and handle.
Replace a ubs cable, and then close to the charging head to see if there is still sound. Go to the store, find a professional engineer, let the master check. It is best to ask your own mobile phone customer service, and then go to the network to repair your own mobile phone charger, or replace an original charger by yourself. If only because of the usb cable damage affected the charging head sizzlingSound, then you can replace an original factory charging cable to continue to use.
1, alarm signal, drop sound Settings. Millet scooter has a drop sound alarm signal function, when there is an abnormal situation, consult the millet scooter operating manual, or contact professional after-sales personnel to troubleshoot and solve the problem. The millet scooter will have a button or switch on the drip sound, which is due to accidentally pressing a switch, resulting in constant drip sound.
2,It may be that the anti-interference of the alarm is not good, or your charger pulse interference is too large, you can connect a few hundred K resistance in the phase line. We know that the current charger is mainly pulsed charging, charging battery may be affected by the charger output non-constant current direct current, the alarm is affected by it.
3, check whether the line around the controller of the scooter is loose, if there is loose, you can fix the line. The return of the brake is not good, which may be the return spring of the brake pedal is damaged, and it is recommended to check and repair immediately. The above is the reason why Xiaomi balance car drops after boot and cannot be used.
4, the damage of the internal power supply of the controller, there are generally the following possibilities: short circuit of the internal circuit of the controller; Short circuit of peripheral control components; The external lead is short-circuited. The controller works intermittently, and there are generally the following possibilities: the device itself has parameter drift in a high or low temperature environment; The high power consumption of the overall design of the controller leads to the high local temperature of some devices, which makes the devices themselves enter the protection state. Poor contact.