Cannot install software on mobile phone

The reasons why the application cannot be installed may include: the installation permission is not turned on, the phone memory is full, the application version is incompatible with the system version, etc. If you are using a OnePlus mobile phone, it is recommended that you perform the following troubleshooting:

1. Enable the permission to install applications on the mobile phone

ColorOS system: Please enter the mobile phone "Settings> Security/Password and Security" > (System Security)?>?Install applications from external sources" to check whether it is turned off. If it is turned off, please turn on the switch.

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H2OS system: Please enter the mobile phone "Settings > Apps and Notifications > Special Applications/Access Permissions > Install Unknown Application Permissions" to set up

If the phone’s storage capacity is insufficient, applications may not be installed. It is recommended to clean up the junk on your phone, or delete some unnecessary files and try again.

3. Change the application version

Some applications will be incompatible with the mobile phone system version. If other models with the same Android version cannot install the application, it means that the software It is not compatible with the current system, please change to other versions or download and install other software again;

If the software was not downloaded from the software store, it is recommended to delete the software, search and download the software through the software store and try again;

It is recommended to uninstall third-party housekeeping applications.

4. Check the system version

All versions of WeChat no longer support models below Android 5.0. When the mobile phone system version cannot be upgraded, such as when the system is Android 4.4, WeChat The latest version will not be installed.

5. Confirm whether you have obtained ROOT permissions

Please confirm whether your mobile phone has obtained ROOT permissions to change the stability of the mobile phone system. If so, please back up the data and go to the customer service center Install after flashing.

If the above does not solve your problem, please contact OnePlus customer service for more help.