Huawei's mobile phone lock key is broken. What if I can't turn it off?

Huawei's mobile phone lock key is broken. What if I can't turn it off? Try to force a restart by holding down the power button to see if it works.

If not, you can only go to the after-sales inspection. ...

1, key card (key is pressed one by one, whether each key is elastic).

2. The keyboard is wet and leaks electricity (cleaning and drying the board).

3. Leakage and short circuit of the protective elements and anti-interference capacitors of the longitudinal and transverse lines of the keyboard (judged by measuring the grounding resistance or the voltage of the keyboard contact).

4, flip control circuit failure.

5, CPU virtual welding or bad (replanting, replacement).

6. The machine board has been disconnected.

What should I do if the power off key of Huawei mobile phone g730-t00 fails? 1, buttons are stuck (press one by one, whether each button is elastic).

2. The keyboard is wet and leaks electricity (cleaning and drying the board).

3. Leakage and short circuit of the protective elements and anti-interference capacitors of the longitudinal and transverse lines of the keyboard (judged by measuring the grounding resistance or the voltage of the keyboard contact).

4, flip control circuit failure.

5, CPU virtual welding or bad (replanting, replacement).

6. The machine board has been disconnected.

What should I do if the lock key of Lenovo s938t mobile phone fails?

I'm sorry for the inconvenience.

If the screen lock key fails during use, it is not excluded that the system is abnormal at this time. It is recommended that you back up your mobile phone data and restore the factory setting operation. If the problem still exists, I suggest you take the time to go to Lenovo's authorized maintenance site for corresponding inspection and maintenance. Please understand.

Lenovo authorized maintenance site query:: support 1.lenovo../ Lenovo/WSI/station/servicestation/default.aspx? intcmp=MIDH

If you have any other questions in the subsequent use, please feel free to contact us or visit Lenovo Music Bar (:ask.lenovomobile.) for consultation and understanding.

What should I do if the screen lock key of Vito s2 mobile phone fails and I can't start it? 1. Causes of touch screen failure:

1. The charger used for charging is not original or the adapter is faulty;

2. The mobile phone rubs in the pocket to generate electrostatic interference;

3. The mobile phone screen is wet or wet;

4. The slow response of the system caused by the running of some mobile phone software;

5. The firmware of the mobile phone or the touch screen itself is damaged.

Second, the touch screen troubleshooting methods:

1. Replace the original mobile phone charger;

2. Press the power button to close the screen, and then light the screen, which can generally return to normal;

3. Wipe off the water on the screen of the mobile phone, and the touch screen returns to normal;

4. Wait for the system to return to normal or close the corresponding software;

5. Download the firmware upgrade in official website or go to the customer service center for processing.

What should I do if the phone lock key fails? 1. If you can't use the Back button to return to the previous interface or exit when running a program, it is recommended to click the HOME button to return to the standby interface and try to re-enter the program.

2. Turn off the phone and restart it;

3. If the back button, menu button, HOME button and power button of the mobile phone are insensitive or unusable, it is recommended to uninstall and delete the recently installed software.

4. Back up the data in the mobile phone (contacts, text messages, etc.). ) and restore the factory settings of the mobile phone (Settings-System "More"-Restore the factory settings, please do not check "Clear completely");

If the above methods fail to solve your problem, please take the purchase invoice, warranty card and mobile phone to the nearest OPPO customer service center for testing and handling.

1, key card (key is pressed one by one, whether each key is elastic).

2. The keyboard is wet and leaks electricity (cleaning and drying the board).

3. Leakage and short circuit of the protective elements and anti-interference capacitors of the longitudinal and transverse lines of the keyboard (judged by measuring the grounding resistance or the voltage of the keyboard contact).

4, flip control circuit failure.

5, CPU virtual welding or bad (replanting, replacement).

6. The machine board has been disconnected.

How to close Meizu mobile phone lock screen button when it fails? I can only wait for the phone to turn off automatically when there is no electricity.

Meizu mobile phone lock screen button is broken. It is recommended to go to the after-sales service point for repair or replacement. If it is within the warranty period, it is free. If the warranty period is exceeded, it can be repaired within 100 yuan.

What should I do if the screen lock key of oppo mobile phone fails? If there is something wrong with the keys of the mobile phone, the following actions are suggested:

1. Restart the phone and observe whether the virtual buttons of the phone can continue to be used.

2. Enter recovery mode. When the phone is completely turned off, press and hold the volume down+power on button for about 8 seconds (the phone will automatically enter the official recovery mode).

3. After entering the recovery mode, select Clear Data/Restore Factory Settings to clear the data, and then restart the phone.

4. If the problem has not been solved, it can be sent to the local OPPO customer service center for the staff to test and repair.