The phone has not been used for too long, and it can t be turned on even if it is charged, and the i

Android phones. Unable to boot normally Handling method:

1. Press and hold the power button for more than 10 seconds to see if you can force it to turn on. If it can be turned on, please back up your important data and restore it to factory settings.

or upgrade to the latest software version.

2. If you can't force it to turn on, please check whether the phone has power, there will be a charging indication when plugged in to the power supply in the empty power state, and it may not be able to turn on immediately when it is just charged, please continue to charge it for a period of time before trying to turn it on.

Fourth, for the boot has a reaction, but does not enter the system, it is recommended to enter the recovery mode to restore the phone to the factory and try again (recovery mode entry method: press and hold the volume down + power button to turn on).

If none of the above methods can force the device to start, it is recommended to go to a professional mobile phone after-sales inspection and repair.

If you are using a Huawei phone and your phone flashes red light when you turn it on, you can do the following:

1) It may be that the battery has been depleted, it is recommended that you use the standard charger to charge continuously for more than 30 minutes before trying to turn it on.

2) It is recommended that you press and hold the power button for more than 15 seconds to try to force restart your phone.

Repair spare parts** inquiry.

Make an appointment for service. Boarding service.

There are many factors that can be turned on without attacking the mobile phone, and the battery, mobile phone software, and hardware are all shooting and will cause this kind of non-boot failure. We recommend trying the following:

1. Replace a mobile phone battery of the same model for testing or send the battery to the nearest service center for testing.

2. Take out the battery, clean the metal contacts of the battery with a rubber and test.

3. Take out the SIM card and SD card at the same time, and then press the power button for more than 10 seconds to test whether it can be turned on.

If it still can't be turned on, there may be a problem with the system program or hardware, it is recommended to send the handwheel letter machine to the nearest Samsung service center for testing.

There are two reasons, the first reason is that your mobile phone battery is no longer Min Zheng Electric, and now you can't charge it. The second situation is that the inner screen of the mobile phone is broken, and the group is blind or can't turn it on, we can change the inner screen.

There is a motherboard in the mobile phone.,This kind of problem must be a problem with the motherboard bright and sensitive, so it can't be turned on.。 This situation is very difficult to fix for a while. If you want to change the supervisor, it's not worth it.

Because the parts in your mobile phone have been damaged, so he is no longer enough, the base file mold is flexible, and the sensor can't sense it, even if he is flashing, but there is no way to turn it on, you must take it in time, and the mobile phone stupid spine store will repair it.

Summary. What's going on with the flashing of mobile phone charging, let's find out together.

When the mobile phone battery is less than 4%, it will flash a red light, and it will go off as long as it is charged for half an hour.

The phone has not been charged for more than a week, and it can't be turned on when charging.

What's going on with the flashing of mobile phone charging, let's find out together. When the mobile phone battery is less than 4%, it will flash a red light, and it will go off as long as it is charged for half an hour.

It is also possible that the battery is faulty, you can try to replace the battery. It may also be that the charging output current or voltage is abnormal, which is generally high, which is related to the data cable or charging cable, but the most important thing is the problem of switching the power supply, you can replace a charging cable to try.

If it still can't be repaired, you can bring your phone to the nearest mobile phone repair shop for testing and repair.

Hope it helps, dear.

If possible, you can replace the charging cable and charging head, and try whether it is a problem with the charging cable and head. Otherwise, go to the repair center for an inspection.

Regarding the above problems, first check whether the original charger is normal.

Check the inside of the original charging data cable to see if there are problems such as poor contact.

Check the original charging cable plugwithMobile phone charging tail plug to see if there is poor internal contact between the two.

Check if the battery inside your phone is normal(For this inspection, it is best to ask a professional master to test the mobile phone battery).

Through the above checks, if it is normal, then this situation may be on the motherboardCharge control circuit,

If you are using a Huawei phone, we recommend that you do the following:

1. Please try to place your phone in a dry and ventilated place and use a paper towel to blot the water stains on the surface of your phone.

2. Because the phone has been turned off, please do not try to turn it on.

3. Please take out the SIM card and microSD card.

4. Take your phone to a Huawei customer service center as soon as possible to avoid unnecessary losses.

Precautions: 1. Do not move or shake the mobile phone frequently after entering the water, so as to avoid the spread of moisture inside the mobile phone.

2. Do not bake with a hair dryer or stove after entering the water, so as to avoid the liquid being blown into the inside of the mobile phone and damaging the mobile phone at high temperature.

3. Some mobile phones can be turned on and used normally after simple treatment, but the mobile phone is composed of precision electronic components, and there is a hidden risk after water ingress, so it is recommended not to try to turn it on.

4. During the after-sales maintenance process, data may be lost.

Reasons and solutions for the mobile phone can not be turned on: 1. The boot line is not normal: use the external power supply to power the mobile phone, use the telephone meter to detect and see if the indication has changed, if there is no change, it is likely that the boot line is broken or the boot key 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 power supply of the mobile phone is abnormal

Test on the test point of the peripheral circuit of the power supply IC according to the circuit schematic diagram to see if 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 Conflicts:

The installed software does not match the system of the mobile phone, which may also cause the mobile phone to not turn on, you can connect the mobile phone to the power to delete the program.