What should I do if the Xiaomi 2S automatically turns off when it is out of power, and the display l

1. Unplug the battery, reinstall it, charge it for a while, and see if it can be turned on normally.

2. Whether it can enter recovery. How to enter recovery: In the shutdown state, first press and hold the "volume up button" and then press and hold the "shutdown button", and let go when the boot screen appears, you can enter recovery.

If you can enter recovery, please switch the system under recovery and back up the data, if it can't be successful, you need to erase all the data (contacts, text messages, phone apps, etc. will disappear).

3. There is a problem with the mobile phone system and cannot be recognized. Whether it can enter fastboot. Ways to get into fastboot:

In the shutdown state, first press and hold the "Volume Down button" and then press and hold the "Power Off button", and then let go when the boot screen appears, and you can enter fastboot. Please connect your mobile phone to the computer and flash a complete system package with the method of miflash.

4. Mobile phone hardware problems. At this time, the only way to take the phone to the repair office for maintenance is to do so.

Dear users, hello. According to your description. It is recommended that you remove the battery, charge it with the universal charger for one hour, put it in and try to turn it on. Try to be careful in the future, don't wait until the automatic shutdown before charging.

At present, the network hall is carrying out recharge ** activities, and the intensity is unprecedented! 4 iPad minis, 20 Huawei C8813Q mobile phones, nearly 10,000 phone bill red envelopes, 100% winning rate! Details:

or the official website of China Telecom (

Hi! It may be that the battery has entered sleep, it is recommended that you do not run out of power and automatically shut down, please remove the battery for 5 minutes, put it in and use a data cable to connect the computer and mobile phone for 30 minutes, and try to turn on again.

A more detailed description of the problem will help netizens understand the troubles you are encountering and help you solve the problem more accurately. Thank you for supporting Xiaomi phones!

Try a different battery. Or you turn on the phone and press the volume + and power keys to go in and take a look at the system.

This phenomenon is normal for Xiaomi's mobile phones

1. If the mobile phone can be turned on normally, the red light flashing when charging means that the current battery is low (generally less than 20% will be reminded), just keep the mobile phone charged for a period of time, the red indicator will turn into a yellow light flashing, and when the power reaches more than 80%, the indicator will turn green again. This is a normal phenomenon and belongs to the default settings of the MIUI system of Xiaomi mobile phones.

2. If the red light flashes during charging, and the charge cannot be charged and the machine cannot be turned on, it may be that the battery is aging or malfunctioning, the internal electrical barrier of the mobile phone is faulty, the motherboard chip and other parts are faulty, and you need to contact Xiaomi's after-sales service to overhaul the mobile phone to solve it.

1. The boot line is abnormal: use an external power supply to supply power to the mobile phone, use the electric meter to detect whether the indication has changed, if there is no change, it is likely that the boot line is broken or the boot button is not in good contact.

2. The power supply circuit of the battery is abnormal: use the external interface to supply power to the mobile phone, see if it returns to normal when it is turned on, if it is normal, it is determined that the power supply circuit of the mobile phone is abnormal.

3. The IC of the mobile phone power supply is abnormal: test the test point of the peripheral circuit of the power supply IC according to the circuit schematic diagram to see whether the test value is normal.

4. The system clock and reset of the mobile phone are abnormal: you can use the dual total oscilloscope to detect the CPU power supply of the mobile phone to check whether the waveform in the reset is correct.

5. Problems with logic circuits: that is, faults in the circuit version of mobile phones, which can generally be solved by repair welding.

6. Software conflict: The installed software does not match the system of the mobile phone, which may also cause the mobile phone to fail to boot, you can connect the mobile phone to the computer to delete the program.

7. If it is a copycat mobile phone, then I estimate that it can't be turned on because the chip inside is burned, or some of the small parts inside are loose, but this situation will only appear if you drop it, the chip burns may be because you charge it for too long, burn the chip, if the battery has electricity, that is these aspects, if it is a brand-name mobile phone, such as Nokia, Motorola. These situations are rare, unless it is artificial, if it is a brand-name smartphone, and it is not used improperly, it is a software problem, it may be a system crash, or because of the mobile phone poisoning caused by software damage, generally this can only go to the maintenance office, however, I think the biggest possibility is caused by static electricity, it is recommended that you do not open the blind repair, or go to the maintenance office!

The battery is broken, and it may be a motherboard problem.

Common black screen forms:

Black screen, press the power button to work!

The screen is black, pressing the power button is invalid, you need to pull out the battery and reinsert it before you can restart!

The screen is black, but the screen is faintly bright, not completely black, you can see at a glance that the phone is faked, pressing the power button is invalid, you can only restart after pulling out the battery!

During use, the mobile phone suddenly gradually blacks out (some 5800 can also appear for a short time), and then it automatically lights up and boots on, that is, it automatically restarts! This kind of situation where the screen of the mobile phone instantly dims and then turns black, I also call it the phenomenon of "screen off", which is similar to the ...... of insufficient voltage causing a light bulb to go outIn the forum, some people also have my situation, the reason is unknown, and the discussion will continue later.

Black screen, only a white screen appears after restarting, and it can't be turned on normally, this is the most serious!

The screen is black, pressing the power button is invalid, but after pulling out the battery and restarting, I find that the time has to be reset!

The above are the failures I have encountered, and some of them happen quite frequently, and everyone's experience is nothing more than 3 reasons for the occurrence of black screens!

1. Battery causes black screen reasons, there are two cases:

Poor contact of copper sheet causes the mobile phone to lose power, for example, some people take pictures or shake the mobile phone and the screen becomes black, such as the fault above.

Phenomenon. The solution is to clamp the three copper points to ......

The reason for the internal performance of the battery, such as the same battery starts to be used very well, and the performance may be reduced after half a year, which may lead to a black screen, and I personally guess the reason for the internal current and voltage weakness! If you encounter an inferior copycat battery, it is even worse, and it may damage the ...... of the phoneIf it's only occasional, it's not a big problem, otherwise it's time for a new battery!

2. Software conflicts lead to black screens, which is estimated to be experienced by everyone, for example, when frequently testing and installing various software, the probability of encountering a black screen increases greatly; Sometimes it will also lead to a black screen when the operation software is too fast; Or the software will conflict with each other, turn black screen......, and so onThe reason is unknown, and it can be solved simply when it is slight, that is, it can be simply dealt with when the card is turned off and the card is turned on and inserted! In severe cases, the solution can only be ...... againThe black screen that can't boot up normally can only be solved by hard grid (hard grid techniques also have skills, you can refer to my hard grid book)!

3,The reason for the black screen caused by system problems,This is the favorite reason of the repair shop JS,Because brushing the system is to charge,When you encounter a rookie, you will say that the black screen is caused by the system and need to be flashed to solve it,Take the opportunity to make a mistake,So rookies should be vigilant about this problem......Needless to say, the old birds, especially those who love to brush the machine, will definitely try various methods to re-flash the system ......

4. Black screen is common, simple processing is not a big problem, if you are very troubled about the time, it is recommended to install the software "time box", synchronize network time, need a small amount of GPRS traffic, instantly restore the correct time, quite convenient, is one of the essential software ......

Go to the repair shop and find a maintenance master to fix it!

1. This is because the battery of the mobile phone has entered a dormant state due to excessive power consumption, so it cannot be charged.

2. The solution is as follows:

1) If there is a dock charger, you can take out the battery and put it on the dock charger to charge for a period of time, and the battery can be reactivated and return to normal.

2) You can also take out the battery, charge the phone for fifteen minutes, then install the battery, continue to charge for fifteen minutes, you can reactivate the battery, and it can return to normal after activation.

3) If the above methods fail to activate the battery, you can contact Xiaomi after-sales service for processing; Or just replace it with a battery.