1. The Install button is grayed out, so you can't click Install.

In order to ensure the compatibility and security between the software and the equipment system, we will review the application before it is put on the shelves. If the application does not meet the standards of the vivo App Store, it cannot be installed and used. It is recommended to wait until the application is optimized.

2. Allow installation of unknown applications.

To confirm whether the device is allowed to install software from unknown sources, you can go to Settings-Applications and Permissions/More Settings-Permission Management-Permission-Install Unknown Applications-Select Software-and turn on the "Allow Installation of Unknown Applications" switch.

3. Open the storage permission

Settings-Apps and Permissions/More Settings-App Management-App Store/Game Center-Permissions-Store-Disable and re-allow, then download and install.

4. Delete the download record and installation package.

Delete the download record and the corresponding installation package in the game center-My-My Download-and download and install again.

Enter the app store- Manage-Download and Install-Delete the download record and the corresponding installation package, and download and install again.

5. Confirm whether it is in multi-user mode.

Go to Settings-System Management-Multi-user, and confirm whether the multi-user mode is set. You can cancel the multi-user setting, or switch user mode to uninstall the application, and then return to main mode to download again.

6, clear the software data

Go to Settings-Applications and Permissions/More Settings-Find Software-Save-Clear Data and try again; (Please back up the important data of the software before operation)

7. Installation software prompts insufficient memory.

The storage space of the device is limited, and storing too much data will make the device overwhelmed.

Enter I housekeeper-space cleaning-scan cleaning garbage cache;

Uninstall the software that is not commonly used in mobile phones;

Enter file management to clean up videos, songs, compressed packages, etc.

8, install software prompt parsing error

If the installation package file is damaged or maliciously modified during downloading, you can download and install it again, or change the official platform to download it.

9. System software installation failed.

Go to Settings-Applications and Permissions/More Settings-Application Management-Upper right corner-Show system programs-Find programs-Uninstall/uninstall updates, and then reinstall;

Find the corresponding application and install it in Settings-Applications and Permissions-Application Management-Upper Right Corner-Built-in Application Management.

10, the software is incompatible with the device.

Some software is incompatible with the equipment system due to factors such as resolution and version, so it is recommended to replace other versions or other software of the same type for installation and use.

1 1, indicating "high-risk virus"

If "high-risk virus found" is prompted, it means that the system has detected the risk of the application and automatically prohibits the installation. If you still need to install, you can go to Settings-Security-More Security Settings-Application Installation-Prohibit the installation of malicious applications-Close.