The return button of the OPPO phone is out of order, what s going on?

Clean up the cache junk inside your phone first, and then operate it. In addition, you can find the firmware of the corresponding model through the OPPO official website--coloros--rom**. Back up the important things inside the phone, store the firmware package to the root directory of the phone's memory, then turn off the phone, while holding the volume down button without letting go, then press and hold the power button to enter the recovery mode, clean up the data and cache, and then click to install the upgrade file, then find the place where the firmware is stored, upgrade, and then operate to see.

If there is an abnormality, it is recommended to go to the customer service center and let the staff there help you detect it specifically.

If you don't respond when you press the keys on your phone, or if you press some keys and see unexpected results, try the following solutions. Physical keys such as the power button and volume button Press the power button of the phone to turn off or wake up the phone screen, and press the volume button to adjust the volume. These keys fail during the operation of restarting the phone; Remove any protective film and case that may hinder the use of the keys; Inspect the button or switch for debris or dirt and clean it with a soft cloth; If the use of the keys is still abnormal, you may need to take your phone to a service center for repair.

In order to solve your problem as soon as possible, you can make an appointment with the service center in advance. Home button, back button and other keys When you press the home button on the screen, the phone will return to the home screen; Press the back key to return to the previous page; The menu key allows you to see which apps are currently running on your phone. If your phone isn't working with these on-screen keys, or is working intermittently, there could be one of the following reasons.

The tempered film can be removed and then used; Third-party programs affect and uninstall applications that were upgraded before the situation; If the system fails, you can go to the official website of OPPO, ** firmware package, and reinstall the system for the phone. After ruling out the above situation, if the use of the keys is still abnormal, you may need to send your phone to the service center, and our staff will assist you in dealing with it.

The keys are stuck (press them once one by one, whether each button has elasticity or not).

Wet keyboard, leakage (washing, drying the board).

The protection elements of the longitudinal and horizontal lines of the keyboard and the anti-interference capacitors leakage and short circuit (determined by measuring the resistance to the ground or the voltage of the keyboard contact).

Caused by the failure of the clamshell control circuit.

CPU soldering or breaking (replanting, replacement).

The board is disconnected. Turn off and restart your phone;

If the back button, menu button, home button, and power button of the mobile phone are not sensitive or cannot be used, it is recommended to uninstall and delete the recently installed software.

If you can't use the back button to go back to the previous interface or exit when running a program, it is recommended to click the home button to go back to the standby interface and try to re-enter the program.

If none of the above methods can solve your problem, please bring the purchase invoice, warranty card and mobile phone to the nearest OPPO customer service center for testing and processing.

The tempered film can be removed and then used;

After ruling out the above situation, if the use of the keys is still abnormal, you may need to take your phone to the service center.

Physical keys such as the power button and volume button Press the power button of the phone to turn off or wake up the phone screen, and press the volume button to adjust the volume. When these keys fail, you can try the following methods:

Restart your phone. Remove any protective film and case that may hinder the use of the keys;

Inspect the button or switch for debris or dirt and clean it with a soft cloth;

If the use of the keys is still abnormal, you may need to take your phone to a service center for repair.

Touchscreen malfunction when operating a single piece of software.

Go to "Settings" - Application Management, find the software, "Clear Data" and "Clear Cache" to clear the cache data generated by the software when it was running in the past.

No matter how you press it, how you point it, it's not good, you're in a hurry, don't worry, let's try these methods!

1. It is recommended that you remove the tempered film and turn off the mobile phone to restart it. If there is a blister between the screen and the film, it is easy to cause the touch to fail. If both the power on button and the volume button + and - button (physical buttons) are out of order, you can try to force restart your phone by pressing and holding the power button and the volume + button at the same time for 10 seconds.

2. If the back button, menu button, home button, and power button of the mobile phone are not sensitive or cannot be used, it is recommended to uninstall and delete the recently installed software.

3. If you can't use the back button to go back 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 re-enter the program to try.

If you still can't restore it after trying the above methods, you can back up your phone data, restore your phone to factory settings, or please bring your purchase voucher and phone to the nearest OPPO customer service center for testing.

A sudden strike on the phone screen? Don't panic, let's try these methods!

1. It may be caused by the screen film, it is recommended that you remove the film and try it.

3. It may be caused by the use of a non-original charger, it is recommended that you use the original charger.

4. If the screen does not work when playing the game, you can operate in this position after exiting the game, if the screen returns to normal, it is a game software problem, and it is recommended that you give feedback to the game customer service.

If none of the above solves your problem, it may be a problem with the screen hardware. Since you can't see your phone, it is recommended that you bring the purchase invoice to the nearest OPPO customer service center for testing and processing, or click on the repair service to apply for a round-trip free postal test.

This applies to all OPPO models.