What is the situation of the unresponsive vivoX520L system after the upgrade

According to your description, you can try it by following the instructions below

1. Frequently enter the desktop of the mobile phone, pull up the shortcut bar, click one key to speed up, close the background program, and release the running memory.

2. Go to i Butler - Mobile Phone Cleanup, clean up the cache files and release the memory.

3. Try to clear all data via "Settings->More Settings-> Factory Reset->Erase All Data". Note: This item will lose all the data stored on the phone, including ** book, text message, third-party application software, and related information.

4. You can go to the official website ** firmware upgrade package to restore the system. Enter this link for the firmware upgrade address of each model, click "Service" - search for your mobile phone model in the search box, then select the model, and click on the resource ** - firmware upgrade for the **ROM package. This is the tutorial, you can take a look.

Instructions for firmware upgrades.

Please remember to back up your important information before upgrading).

The phone is old, the system is new. Usually restart or flash back to the original version.

It is recommended that you clean up the junk regularly, clean up the background at all times, backup important information, and flash the phone.

The mobile phone is used for a long time, the system junk increases, and the software compatibility problem is becoming more and more obvious.

The easiest way to do this is to back up your data and contacts and do a factory reset.

1. Open the program, open the system settings and open it.

2. Hit factory reset or turn on backup or reset, and select Reset. (The system is not the same, there are slight differences).

This situation in vivox5l is caused by a system problem.

When this kind of problem occurs, users can only try flashing the machine to troubleshoot.

To enter the recovery mode, you need to shut down the computer first, press the volume on and the power button until the recovery interface appears.

After entering the recovery mode, double clearing, regardless of whether the phone is the recovery that comes with the system or the recovery of a third party, as long as there are wipe data factory reset, and wipe cache partition can be used.

Select wipe data factory reset to erase all data, that is, restore factory settings, then press the power button to confirm, and then select yes - delete all data, yes, erase all data.

Select Wipe Cache Partition, press the Power button to confirm, and then select Yes - Wipe Cache.

The phone will automatically execute the flashing procedure, and the phone will automatically enter the system when the flashing is completed.

Hello! We apologize for the inconvenience, but we recommend that you try the following:

Pull down the status bar of the phone, click one-click acceleration (one-click cleanup) or enter the program management of the desktop, close the background program, clear the cache file to increase the available memory, and avoid the phone crashing when the memory is insufficient.

Infiltration attempts to clear the abnormal data (i.e., restore the factory state) by "Settings->More Settings-> Factory Reset->Erase All Data", which can solve the crash caused by viruses and third-party software compatibility. Note: Clearing the data will lose all the data stored on the user's mobile phone, including ** book, SMS con royal office information, third-party application software, related information, and the data stored on the T card will not be lost.

Use with caution. If the problem cannot be solved through the above methods, please contact the after-sales service center, and the ** address of the after-sales service center can be queried in the dismantling and careful setting - more settings - after-sales service. You can also go to vivo official ** to check the address of the after-sales service center:

Hello! Sorry for the inconvenience, but based on your description, we recommend you try the following:

1. Click one-click acceleration in the status bar of the mobile phone (one-click to clean up premature leakage) or enter the program management of the desktop to close the background program and clear the cache file to increase the available memory and avoid insufficient memory.

3. You can go to Settings -> General More Settings -> System Upgrade ->Check for Updates Now-, according to the prompts**Upgrade package, click Verify and Install, the phone will restart and automatically enter the upgrade mode to upgrade your phone's system.

4. Try to clear the abnormal data through "Settings-> General More Settings> Factory Reset->Erase All Data". Note that Lu is rotten: This item will lose all the data stored by the user on the mobile phone, including ** book, short message, third-party application software, and related information, and the data stored on the T card will not be lost.

Use with caution. (Note data backup).

Hello! Sorry for the inconvenience, but according to your description, it is recommended that you try the following to solve the problem:

1.You can speed up the memory to clean up the memory and free up space with one click.

2.Clean cache files inside the phone's security assistant (i Butler) - Phone Acceleration.

4.You can delete the cache folder in File Manager, except for the Android directory and DICM, you can delete other folders.

5. If necessary, you can restore factory settings - clear all data to solve, you can first use the cloud service of your phone to back up important data, please rest assured, the data in the SIM card and SD card will not be erased

If it still doesn't work, you can go to the after-sales service center to test and deal with it. After-sales service center address **Query in the settings - more settings - after-sales service menu. You can also go to vivo official ** to check the address of the after-sales service center:

This system is not smooth, you go to the after-sales service.

It is recommended to try the following:

1. In the process of using the mobile phone, it is often one-click to accelerate the background running program, free up the system space, and improve the smoothness of the mobile phone.

2. Clean up the cache files and restart the phone regularly to ensure that the running memory is not occupied too much and improve the running speed of the phone.

4. Go to the mobile phone settings - more settings - applications - installed to move the software installed in the system space to the mobile phone USB flash drive or SD card, and set the mobile phone USB flash drive or SD card as the preferred installation location.

5. Uninstall the third-party software that is not commonly used in the mobile phone to avoid the mobile phone stuck due to insufficient memory.

6. If necessary, it is recommended to try to clear all data, click Settings - More Settings - Factory Reset - Clear Mobile Phone Data - Reset Mobile Phone (check Mobile Phone USB Disk), Clearing Mobile Phone Data will format your mobile phone, so you can back up your mobile phone data before this operation, including contacts, ** and the like.

The phone should be sluggish, it is recommended that you can try the following methods to solve it:

1. Enter the phone I Butler - mobile phone cleaning to scan and clean cache junk files.

3. You can try to clear all data through Settings - More Settings - Restore factory settings - Empty all data (Note: Qingyan will clear all data in the mobile phone if all data is removed, please back up the corresponding important data), 4. Enter Settings - Detect and update the mobile phone system in the system upgrade, 5. If the problem cannot be solved through the above methods, it is recommended that you bring your mobile phone, purchase invoice and warranty card to the nearest local after-sales service center to test. The address can be queried in Settings - More Settings - After-sales Service. You can also enter WeChat--upper right corner--Add Friends--Search (vivo smartphone) About***-Click on the lower right corner for service inquiry.