Samsung mobile phone short message shows that the source is unknown.

Dear Samsung mobile phone users, if you find that your mobile phone can't install software, don't panic. Here are some troubleshooting and handling steps to help you solve the problem easily.

Check unknown source settings.

Make sure the unknown source is open. The operation paths of different versions of Samsung mobile phones are slightly different, and the specific methods are as follows: Settings-screen lock and security-installation location application-selection of applications allowed to be installed-allowing this source code-opening; Settings-screen lock and security-unknown source-on; Settings-Security-Unknown Source-On; Settings-Applications-Unknown Sources-On.

View software format

Make sure that your phone supports the format of the software you downloaded. Android phones are generally supported. APK format.

Read the software details

Before downloading the software, please be sure to read the details of the software and understand its requirements for the operating system.

Update software version

If the problem still exists, it may be due to compatibility problems between the software version and the system. It is recommended that you download the new version and try to install it.

After-sales support

If the problem remains unresolved, please take the purchase invoice, maintenance card and machine to the service center for the help of professional after-sales engineers.