Forty percent of the mobile phone is turned off, and the battery suddenly runs out.

Under the change of charger, there is another method I hope will help you, 1) Turn it off, plug it in and charge it until it is fully charged. (It is best to charge continuously overnight to ensure maximum power.) Remember not to turn on your phone until it's fully charged. ）

2) Turn on the machine without unplugging the power supply.

3) After entering the system, use RE or other similar tools to delete the data system file.

4) Unplug the power supply and use the phone normally until it automatically shuts down.

At this time, the battery still has residual power, wait for one to two minutes and then turn it on again to use up the remaining power.

5) At this time, the phone has re-acquired the current battery level information. At this time, it can be fully charged in the shutdown state to start normal use.

Don't forget to give points if available.

Dude,This should be a problem with the battery.,If you don't try to flash the machine and change a system, it shouldn't be.,Thank you.。 Hope!

The battery may be in poor contact!! Use an eraser to wipe the contact surface of the test battery! Or change the battery. Or would. It may be a problem with the tentacles of the mobile phone battery compartment! You try it first. No, take it to the mobile phone store for repair! Hope it helps!

When you turn off the power between 10 when playing, it's normal, but you have too much.

Using an iOS device in a cold environment below the operating temperature range may temporarily shorten battery life and may cause the device to shut down. When you bring your device back to a warmer environment, battery life will return to normal. Using an iOS device in a hot environment may permanently shorten battery life.

Summary. 1.The phone is turned off when it is still 30% charged, because the phone's battery is virtual.

2.Virtual power means that the battery has always been in a semi-active state that is semi-charged, a simple understanding of the battery's display power display is very high, the actual is relatively low, not the real power of the battery, the battery is charged for a short time and there is a lot of or full power, but it is quickly used up.

3.For such a battery, it must be trickled up when in use, and you can wait for more than half an hour to pull it out after it is fully charged, if it still doesn't work, replace the mobile phone battery.

The mobile phone still has more than 30% of the battery, what happens when the mobile phone turns off automatically?

1.The phone is turned off when it is still 30% charged, because the phone's battery is virtual. 2.

Virtual power means that the battery has always been in a semi-active state that is semi-charged, a simple understanding of the battery's display power display is very high, the actual is relatively low, not the real power of the battery, the battery is charged for a short time and there is a lot of or full power, but it is quickly used up. 3.For such a battery, it must be trickled up when in use, and you can wait for more than half an hour to pull it out after it is fully charged, if it still doesn't work, replace the mobile phone battery.

My phone battery is new and half a month.

It's the new battery that's wrong. After Apple replaces the battery, there may be fast power consumption, serious power failure, and hot mobile phone, these situations are because the mobile phone battery has just been replaced, and the CPU will be unsuitable for a short time, and it needs to become normal after multiple charging and discharging. You can first see if the battery is installed correctly, the installation is no problem, the big problem is the battery itself.

The mobile phone still has more than 30% of the battery, what happens when the mobile phone turns off automatically?

Many users have experienced the sudden automatic shutdown for the following reasons: 1. The leakage of the mobile phone motherboard causes excessive current. 2. The protection circuit in the lithium battery is overly sensitive, so the current will be cut off when the current is large. 3. The battery itself has aged.

Summary. Why does the Huawei phone show that there is still 40% battery but suddenly it turns off and then turns on and shows that it is out of power? Hello dear, <>

Whether you touch the power button by mistake, it may be that the phone restarts by putting the phone in your pocket or bag and squeezing the power button, please pay attention to avoid squeezing the power button, if you squeeze it for more than 10 seconds, the phone will automatically restart. Check if your phone is in an environment where the temperature is too high or too low. If the temperature is too low or too high, the low temperature or high temperature protection function of the mobile phone will be triggered, resulting in automatic shutdown or restart.

It is recommended that you try to keep your phone at the ideal temperature (...).Check whether the timer is set to turn on and off, it is recommended that you check whether the timer on/off function is turned on (enter the settings, search for the timer to switch on and off), if there is a set, the mobile phone will automatically turn on or off. Check if the storage space is sufficient, it may be that the phone has too many cache files and not enough memory.

Hope it helps. If my answer is helpful to you, please give a thumbs up (in the lower left corner), I look forward to your like, your efforts are very important to me, and your support is also the motivation for my progress. Finally, I wish you good health and a good mood!

Why does the Huawei phone show that there is still 40% battery but suddenly it turns off and then turns on and shows that it is out of power?

Why does the Huawei phone show that there is still 40% battery but suddenly it turns off and then turns on and shows that it is out of power? Hello dear, <>

Whether you touch the power button by mistake, it may be that the phone restarts by putting the phone in your pocket or squeezing the power button in the bag, please note to avoid squeezing the power button, if you squeeze it for more than 10 seconds, the phone will automatically restart. Check if your phone is in an environment where the temperature is too high or too low. If the temperature is too low or too high, the low temperature or high temperature protection function of the mobile phone will be triggered, resulting in automatic shutdown or restart.

It is recommended that you try to keep your phone at the ideal temperature (...).Check whether the timer is set to turn on and off, it is recommended that you check whether the timer on/off function is turned on (enter the settings, search for the timer to switch on and off), if there is a set, the mobile phone will automatically turn on or off. Check whether the storage space is sufficient, it may be that there are too many files and insufficient memory on the megahail phone.

Hope it helps. If my answer is helpful to you, please give a thumbs up (in the lower left corner), I look forward to your like, your efforts are very important to me, and your support is also the motivation for my progress. Finally, I wish you good health and a good mood!

There is no timer to turn on and off.

What to do. Dear, it is recommended that you go to a professional repair point for maintenance. Good.

2 possibilities, 1, the phone battery is broken.

2. System problems, whether you have installed battery management software, these software may cause this phenomenon, it is best to re-flash the system, it is a recovery not an update.

Battery problems, which generally occur after a long time.

Let's try it first. Then determine if it is a problem with the battery.

The battery is virtual, in fact, the battery is not so much because the internal capacitance of the battery is blocked, resulting in the default power of the system is 40%, in fact, the power has been used up, quickly replace the battery, this kind of battery mostly occurs in many irregular charging, too inferior battery, there are potential safety hazards.

It should be that the battery is not charged, so replace the battery!

There is a problem with the battery, plus the phone is stuck.

The battery is broken, let's get another one!

Summary. Hello dear kiss, I am happy to answer for you: the mobile phone just started with about 30% of the power, and it didn't take long to display it to shut down in dozens of seconds, pro may be the battery is broken, and the mobile phone will automatically shut down for the following reasons:

1. The phone is out of battery, please charge or replace the battery; 2. If the battery and the mobile phone are in poor contact, the battery can be removed and reinstalled; 3. Set up automatic power off, please check the phone settings and cancel the settings to try again; Fourth, if the mobile phone fails, you can take it to the mobile phone after-sales maintenance department to check it.

The phone had about 30% power at the beginning, and it didn't take long for the display to turn off in dozens of seconds.

Hello dear kiss, I am happy to deshout the code for you Answer: The mobile phone has about 30% of the electricity at the beginning, and it does not take long to display dozens of states to shout seconds to shut down, kiss may be the battery is broken, the mobile phone will automatically shut down for the following reasons: 1. The mobile phone is out of power, please charge or replace the battery to try; Second, the battery and the mobile phone are in poor contact, you can take out the battery and reinstall it; 3. Set up automatic power off, please check the phone settings and cancel the settings to try again; Fourth, if the mobile phone fails, you can take it to the mobile phone after-sales maintenance department to check it.

The mobile phone battery is a storage tool that provides electric blocking power for the mobile phone, which is composed of three parts: the cell, the protection circuit and the shell. "mah" is the unit of battery capacity, and the Chinese name is milliampere-hours.

Generally, this kind of problem occurs, probably because the phone has been used for a long time and the battery has been used for a long time. After the mobile phone has been used for a long time, some of the delicate parts have begun to age, resulting in sometimes poor contact and sudden shutdown; After the battery is used for a long time, the use time will become shorter and shorter, it will gradually deteriorate, and there will often be a sudden shutdown and no power, at this time it is recommended that you go to a specialty store to buy a special battery or repair.

The battery is broken, or the battery is aging, overheating, overcooling will reduce the battery performance, maybe the motherboard is overheating, it will also affect the battery, if the mobile phone is used well, you need to change the phone.

This is generally the case when the battery breaks down after a long time.

There may be the following reasons why your phone will automatically shut down:

1. The phone is out of battery, please charge or replace the battery;

2. If the battery and the mobile phone are in poor contact, the battery can be removed and reinstalled;

3. Set up automatic power off, please check the phone settings and cancel the settings to try again;

Fourth, if the mobile phone fails, you can take it to the mobile phone after-sales maintenance department to check it.