Samsung Galaxy Z Fold6 / Flip6 phones have blocked sideloading apps by default

Thanks to netizen Meiyayang for submitting the clue! According to news on July 24, technology media Android Authority published a blog post yesterday (July 23) stating that the new Samsung Galaxy series mobile phones and tablets pre-installed with the One UI 6.1.1 system will prevent users from sideloading applications from unauthorized sources by default.

## Introduction to Permissions

A brief introduction to Android permissions is as follows:

1. INSTALL_PACKAGES

   Technically speaking, Android has blocked sideloading behavior by default at the operating system level. INSTALL_PACKAGES permission (silent installation of new apps without prompting the user) is only granted to app stores preinstalled on the phone (such as the Play Store, or the manufacturer's app store), and is automatically granted to the requesting app.

   

   1. REQUEST_INSTALL_PACKAGES

Most third-party app stores use the REQUEST_INSTALL_PACKAGES permission, which requires explicit user authorization during the installation process. Android will prompt the user every time an app with this permission attempts to install a new app.

2. Auto Blocker feature

Samsung first launched the Auto Blocker feature in One UI 6.0, which can completely prevent the installation of unauthorized apps even if the app has obtained the REQUEST_INSTALL_PACKAGES permission.

After enabling the Auto Blocker function on a Samsung phone, users can only install and update applications through the Google Play App Store and Samsung Galaxy App Store.

In the Samsung One UI 6.0 system, Auto Blocker is an optional feature and is not enabled by default. Users can open the Settings app and manually enable "Auto Blocker" in "Security and Privacy".

Samsung Galaxy Z Fold6 and Galaxy Z Flip6 are pre-installed with the One UI 6.1.1 update, which has the Auto Blocker function enabled by default, but users can turn off this option and continue to sideload applications.

Source of the above picture: AndroidAuthority. The previous device upgrade to One UI 6.1.1 will retain the original settings and be disabled by default.

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