Some Samsung Galaxy phone users are having trouble with their devices running on One UI 6.1 and above. They are unable to do certain things, like install or sideload APK files, turn on USB debugging, or screen mirror to a computer. In this guide, we’ll show you how to fix these problems with just a few steps, so you can perform these tasks without any issue.
Samsung recently added a new security feature called Auto Blocker with their One UI 6 (Android 14) update to keep your device safe. This feature can disable sideloading APK files, running ADB commands, and installing incompatible software updates via PC on Galaxy smartphones. So, your device will be safe from unauthorized installation of software, malware and other security issues.
The Auto Blocker feature was disabled by default in the One UI 6.0 update, but it is now enabled by default in the newer One UI 6.1.1 and later updates. This is causing issues for some people who want to use advanced features on their Samsung Galaxy phones.
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How the Auto Blocker tool Protects Your Samsung Galaxy Phones?
Auto Blocker blocks the installation of apps from unauthorized sources as well as sideloading APK files. It only allows installing apps from the Google Play Store and Samsung Galaxy Store. It will also check installed apps for malicious activities. It can detect potential malware and prevent harmful commands by apps.
Auto Blocker will also disable USB debugging to block ADB commands via USB cable on Samsung Galaxy phones. Chargers, computers, and other devices cannot send commands to the phone when connecting via a USB cable.
This feature prevents the installation of software updates via a USB cable. It can prevent someone with physical access to your device from installing untrusted software without your knowledge. Additionally, it will prevent accessing the Service Menu, which is used to test mobile hardware and other features.
Auto Blocker has Messaging app protection as well. This option protects from zero-click attacks or direct image messages with malicious code.
The Auto Blocker feature in One UI 6, One UI 6.1.1 and up will help keep the device safe, but advanced users who want to perform more complex tasks on their device may need to turn off this feature.
How to Fix Cannot Sideload APK Files and Enable USB Debugging in Samsung Galaxy Phones?
1. Open the Settings app in your Samsung Galaxy Phone.
2. Select the Security and Privacy menu and tap the Auto Blocker option.
3. Next, tap the toggle button next to the Auto Blocker option to turn Off it.
It will disable the Auto Blocker security feature in your Samsung Galaxy device. Now you can use the advanced features such as sideloading APK files, USB debugging, etc. again in your Samsung Galaxy smartphone.
Note: This article was first published in August 2024 and updated in October 2024 with few changes.
