What if the software downloaded by mobile phone can't be installed?

The reasons why the application can't be installed may include: the installation permission is not opened, the memory of the mobile phone is full, and the application version is incompatible with the system version. If you use a one-plus-one mobile phone, we suggest that you conduct the following surveys:

First, open the phone to install application permissions.

ColorOS system: Please go to the phone "Settings > Security/Password and Security > (System Security)? & gt？ Install the external source application to see if it is closed. If it is off, please turn on the switch.

Please click to enter a picture description.

H2OS system: please go to "Settings > Applications and Notifications > Special Applications/Access Permissions > Install Unknown Applications Permissions" to set it.

Second, clean up the phone memory.

If the storage capacity of the mobile phone is insufficient, the application may not be installed. It is suggested to clean up the rubbish on your mobile phone, or delete some unnecessary files and try again.

Third, change the application version.

Some applications will be incompatible with the version of the mobile phone system. If other Android models can't install the application, it means that the software is incompatible with the current system. Please change other versions or download and install other software again.

If the software is not downloaded from the software store, it is recommended to delete the software and try again by searching for the downloaded software from the software store.

It is recommended to uninstall the third-party housekeeper application software.

Fourth, 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, for example, the system is Android 4.4, the latest version of WeChat will not be installed.

Verb (short for verb) confirms whether you have ROOT permission.

Please confirm whether your mobile phone has obtained ROOT and other permissions to change the stability of the mobile phone system. If yes, please back up the data and install it after processing it in the customer service center.

If the above can't solve your problem, please contact one plus customer service for more help.