Samsung Galaxy S5 can not install the software how to do? S5 installation software failure resolution

1. We click on the "Application" icon in the phone to enter.



2. Then we click on the "Settings" icon to enter the details as shown in the following figure.



3. Then in the open interface will see a "Security" icon we click on it, as shown in the following figure.



4. Then we find "unknown source" in security click on it.



5. Once we have selected the unknown source, we click on the "OK" button, as shown in the picture.



Tick the page.

If the above method is still unable to install we can download the apk file to try, if the change of apk or not we can try to restore the phone factory settings Oh.