What if the application of oppoR 1 1 cannot be installed?

The mobile phone is not turned on from an unknown source. Just open the phone settings-general/other settings-security and privacy-unknown source/allow installation of applications from unknown sources;

The memory of mobile phone is full. It is recommended to clean up the mobile phone garbage and leave enough space in the memory.

The preferred installation location is wrong. Go to Settings-Storage-Preferred Installation Location-Select System Decision, and then download and install again.

The version of the installed software is lower than the existing version, or it is caused by software compatibility problems. Please change to another version or download and install other software again.

The mobile phone has obtained permissions such as ROOT to change the stability of the mobile phone system. It is recommended to go to the customer service center to brush the machine to remove the ROOT status of the mobile phone.

How to operate the mobile phone without downloading software:

The network is not good, it is recommended to download it through WiFi or 4G network;

If the storage space of the mobile phone is insufficient, you can uninstall and delete the software or delete the file and data cache to release space;

The software store blocks APK resources and can be searched and downloaded on other platforms.

Back up the data in the mobile phone (contacts, text messages, etc.). ) and restore the phone to the factory settings.