How to restart when the key of the Xiaomi phone fails

If the key failure of the Xiaomi switch fails, it can be replaced by the hovering ball and the volume button, here we take the Xiaomi Mi 6 as an example, and the specific method is as follows.

1. Open Settings first.

<>4. Open the hoverball and click the custom menu at the same time.

5. Turn on the relevant functions of the suspension ball.

6. Go back to the settings page and find the [Lock Screen, Password & Fingerprint] option.

7. Turn on the [Volume Key Wake Up], the setting is complete, and the role of the switch button can be replaced by these two functions.

1. The power button is inelastic and causes failure.

Start by turning off your phone, opening the back cover, and removing the battery. You will find that there are 8 screws between the base and the panel, remove these 8 screws respectively and store them properly, after removing the base screws, carefully remove the base, the method is similar to opening the back cover, do not use brute force. Remove the power plastic key We found that Xiaomi's power button is a touch reset SMD switch, intact light touch reset SMD switch has a certain elasticity, due to our operation too strong or falling, resulting in the raised contact surface of this switch flattening and losing elasticity, at this time, please use a needle or a small screwdriver to slightly provoke the contact surface of the switch, that is, restore the elasticity of the Xiaomi power button.

2. The power key is broken and causes failure.

If the power button is broken, if it is close to the maintenance point of Xiaomi Home, it is recommended to replace it directly; For users who are far away from Mi Home, you may wish to follow the above disassembly method, remove and wipe the broken power button, and then stick it with 502 or other super glue.

If the power button of the Xiaomi mobile phone fails, you can use the Xiaomi key instead of lighting up and locking the screen, but when the mobile phone is placed in the pocket, it is easy to touch the Mi key and cause the screen to light up frequently, not to mention the battery consumption, and the Mi key is also very easy to be damaged. Therefore, if the power button of the Mi mobile phone fails, it will either be sent back for repair or solved by itself, and do not rely on other buttons to replace. Warm tips for mobile phone repair professionals:

Disassembling the device by yourself will not be able to enjoy Xiaomi's after-sales service, so do not disassemble the device by yourself if you are not sure or unless necessary.

For the failure of the hand-on grip filial piety key, the Xiaomi system in Luzhong has a mode specifically for this early Pishan problem. Keep long pressing or short press the power button to wake up, and then choose to restart the phone, and tap the volume + four times when you restart, and that's it!

1. The specific operation of the Redmi note power button failure is as follows:1、Press and hold the volume plus or minus button, plug in the charger, it will enter recovery mode, and then wait for it, it has the function of automatic confirmation, you can restart the function after automatic confirmation three times, and you can set the volume button to wake up after booting; 2. If it really can't be used at all, it is recommended to find someone else to repair it. If you can turn it on yourself, you will see that there is a metal sheet under the power button, and as long as you touch it with metal, it will turn on.

1. The boot line is abnormal. Use an external power supply to supply power to the mobile phone, use the meter to detect whether there is a change in the indication, if there is no change, it is likely that the power cord is broken or the power button is not in good contact; 2. The power supply circuit of the battery is abnormal. Use the external interface to power 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 not normal.

Test on 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 check the CPU power supply of the mobile phone to see if the waveform in the reset is correct;

1. The boot line is abnormal. Use an external power supply to supply power to the mobile phone, use the meter to detect whether there is a change in the indication, if there is no change, it is likely that the power cord is broken or the power button is not in good contact; 2. The power supply circuit of the battery is abnormal. Use the external interface to power 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 not normal.

Test on 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 check the CPU power supply of the mobile phone to see if the waveform in the reset is correct;

5. There is a problem with the logic circuit. That is, the fault of the mobile phone circuit version 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 fail to boot, you can connect the mobile phone to the computer to delete the program; 7. If it is a copycat mobile phone, it is estimated that it cannot be turned on because the chip inside is burned, or some of the small parts inside are loose, but this situation will only appear after it has been dropped, and the chip may be burned because the charging time is too long, and the chip is burned; 8. If the battery has electricity, it is these aspects, if it is a brand-name mobile phone, such as Nokia and 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, and it may be a system crash; 9. Or because the software is damaged due to mobile phone poisoning, generally you can only go to the maintenance office.

Take Xiaomi Mi 10 and MIUI12 systems as an example, if the power button of Xiaomi mobile phone is broken, you can turn it on through the following methods:

1. If the phone has been turned off, you can press and hold the volume plus or minus keys at the same time, and then plug in the power cord to charge, the phone will enter the safe recovery mode, select "Exit", and the system will automatically restart and boot on.

2. If it is a mobile phone that can take out the battery, you can remove the back cover of the battery first, and then plug in the power of the mobile phone, and the mobile phone will pop up a boot logo.

3. After the phone is turned on, open the mobile phone manager, find the "timer power on/off" function in the basic services below, and set the timed power on time, which can be used temporarily for a period of time.

The above methods are all temporary methods, can be used for emergency, the boot button is an important key of the mobile phone, and should be repaired and replaced by the after-sales department in time after damage. This answer applies to most of Xiaomi's phone models.

1. First of all, the first step is to try to solve the problem by yourself, take your phone, press and hold the volume key +- plug in the power supply, and then the REC will be displayed on the screen, wait for a while and it will turn on naturally.

2. If the first step doesn't work, you don't have to be discouraged, you can try the second step. Go to contact Xiaomi Home after-sales service or take it to the mobile phone store to repair the boot button, and you can get it right with a few dollars.

3. The last way is for Xiaomi mobile phones that can remove the battery, you can first remove the back cover of the battery, and then connect the phone to the power supply, generally if it is charging, the mobile phone will pop up a boot logo, and then you quickly remove the battery, and then connect the battery again, so that the mobile phone will enter the boot program. This method must be fast.

It may be because the parts are aging, and you can take your mobile phone to the official *** and ask the maintenance personnel there.