Lenovo S850T can t manually switch to Song 5 when the screen is locked

We apologize for the inconvenience caused.

When you use the built-in **** device for background **, and when you are set to swipe through the system settings - security and lock screen - lock screen, use the power button to unlock it, and the **** interface can appear normally, where you can manually switch operations normally; When you use the black screen unlock, this interface will not appear, please understand;

If the problem persists, it is recommended that you try a factory reset, which you can find in System Settings - Backup & Reset. Since restoring factory settings will erase the original data information, it is recommended that you make a backup first, you can use the cloud service for cloud synchronization or you can back up the data on the computer through the Le Assistant, you can visit the cloud service official**.

Hele assistant official**.

At the same time, it is recommended that you contact Lenovo's authorized repair site in time and hand it over to engineers for inspection and maintenance, which you can visit.

Find the nearest site. The business hours of the maintenance site are usually from 9:00 to 18:00 from Monday to Sunday, except for holidays, and the stations will be slightly adjusted according to their own operations.

If you can cut a song, mine will do.

Dear Lenovo mobile phone users, hello!

We apologize for the inconvenience caused by the use of your mobile phone.

According to the description, it is recommended that you confirm whether the power button cannot light up the screen to unlock the operation. It may be caused by an abnormal malfunction involving the power button, such as poor internal shrapnel contact.

If the screen can be lit, only the screen is abnormal and cannot be unlocked. Here it is recommended that you try to press and hold the power button for more than 8s to force it to shut down, and then turn it on again.

If it can be used in the system, it can be observed. Or after backing up the important data of the lower body, restore the factory settings to see if it can be improved.

If it can't be effectively solved, it is recommended that you take the time to go to your local Lenovo after-sales service center and let the engineers help test and solve the problem. You can log in to the official website to check the address.

1. Click the [Menu Key] of the mobile phone on the desktop, and then click [Desktop Settings];

3. Click [Desktop Gesture Settings];

4. Click [Double click on the blank space];

5. Click [Lock Screen] to confirm.

We're sorry for the confusion. If you need to set up a double-tap lock screen, you can do so by following these methods:

Lenovo Official Service Support**:

Lenovo asked:

Make inquiries and find out. Have a great day!

Dear Lenovo users, hello!

Dear Lenovo users, hello!

Hello. We apologize for the inconvenience.

1. Please verify whether the software is automatically closed, such as the timed shutdown function;

3. If the software is abnormal, it is recommended that you can try to change other software, such as: QQ**, Kugou**, etc.;

4. Verify whether the function of "lock screen cleaning background" is turned on in the security software, and if it is turned on, the function can be turned off; Shouting wide.

5. Back up the important data of the lower fuselage, and restore the factory settings;

If the problem persists and cannot be effectively solved, it is recommended that you take the time to go to your local Lenovo after-sales service center and ask the engineer to help you check it.

Lenovo authorized repair site inquiry.

The business hours of the maintenance site are usually from Monday to Sunday 9:00-18:00, except holidays, each site will be slightly adjusted according to its own operation.

If you have other questions in the follow-up use process, you are welcome to contact us at any time or visit Lenovo Lewen (

Consult to find out.

Dear Lenovo users, hello!

This is a power-saving mode for Lenovo phones, you can check and turn off in the phone's management software, if you have any questions, please call Lenovo service** for consultation, or go directly to your local Lenovo service station for consultation.

If your problem is not solved, you can complain, put forward your valuable opinions, and then transfer to manual service.

Dear Lenovo users, hello! This may be caused by you turning on battery saver mode.

Hello. We apologize for the inconvenience.

If the lock screen of your phone is automatically disconnected, please check the situation as follows:

1. If you are using a SIM card to access the Internet, please check whether you use some software to restrict the networking function of the mobile phone, if so, it is recommended to cancel; or whether there is an operation to set the daily traffic limit, if it is set, if the set traffic is exceeded, the network connection will be disconnected by itself;

2. If you are using a WiFi network, it is recommended that you first go to System Settings - System Settings - WLAN Open - Click WLAN - Click the Menu Key - Advanced - Click "Keep WLAN Connected in Hibernation" and select "Always". If the network is still disconnected after the settings are set, please check whether the current network connection is unstable and cause the network to be disconnected, and we recommend that you try to change to another network in the future.

If the problem still persists after trying the above methods, and the lock screen is still disconnected, it is recommended that you back up the fuselage data and try to restore the factory settings.

Officially authorized repair site inquiry.

Hello. It's a problem for you to use your phone.

Because Lenovo S850 mobile phone has a built-in distance sensor, when the mobile phone is talking, close to the ears and cheeks, in order to avoid mishandling the touch to the mobile phone, the screen will automatically lock the screen and go black, please understand.

If you don't need this function, you can go to the "System Settings - Call Settings" on your phone and uncheck "Proximity Sensor". (Take the vibeui system version as an example).

According to the description, if it is more abnormal, as long as the phone is talking, the screen will start to go black, and the screen can only be turned on after the other party hangs up. It may be caused by your phone's film or case covering the proximity sensor at the top of the phone's screen, or it may be caused by the phone's proximity sensor malfunctioning.

You can use the built-in Lenovo service in the fuselage - Le Service - Testing Center - Hardware Detection, Detection Distance Sensor under ().

In addition, you can also try to restore the factory settings of your phone (pay attention to back up important data on the body) to eliminate some abnormalities caused by conflicts and interference of related software. If the sensor fails, we recommend that you take the time to go to your local Lenovo after-sales service center and let the engineer help detect, calibrate and solve it. You can log in to the official website to check the address.

You are welcome to contact us or visit Lenovo at any time

Consult to find out.