如何在三星Galaxy Note 4上卸载Button Savior（非root版）

Alright, the reason your friend can’t uninstall Button Savior is because the non-root version registers itself as a device administrator—Android blocks uninstalls for apps with that permission until you revoke it first. Let’s walk through the steps to fix this:

Step 1: Revoke Device Admin Privileges for Button Savior #

• Open your device’s Settings app (the gear icon).
• Scroll down and tap Security or Privacy & Security—the name might change a bit depending on your phone’s brand (like Samsung uses "Biometrics and Security", Google Pixel uses "Security").
• Look for Device Administrators or Device Admin Apps and tap into that menu.
• You’ll see a list of apps that have admin access. Find Button Savior in there.
• Uncheck the box next to it, or tap the app and select Deactivate. You’ll probably get a pop-up asking you to confirm—tap OK to proceed.

Step 2: Uninstall the App Like Normal #

Once you’ve taken away its admin rights, uninstalling is straightforward:

• Either go to your app drawer, long-press the Button Savior icon, and select Uninstall, or head to Settings > Apps & Notifications > See all apps.
• Find Button Savior in the list, tap it, then hit Uninstall.
• Confirm the action, and the app should be gone for good.

If You Hit a Snag (Alternative ADB Method) #

If you can’t find the device admin settings easily (some brands hide it), you can use ADB commands on a computer:

1. First, enable USB Debugging: Go to Settings > About Phone, tap Build Number 7 times until it says "You’re now a developer!" Then go back to Settings, find Developer Options, and turn on USB Debugging.
2. Connect your phone to a computer that has ADB installed.
3. Open a command prompt or terminal on your computer and run these commands:
   • List all admin apps to get Button Savior’s package name:
     adb shell dpm list admins
   • Look for a line with "Button Savior" (it’ll look like com.zst.button.savior.free/com.zst.button.savior.admin.AdminReceiver).
   • Revoke admin access:
     adb shell dpm remove-active-admin [paste-the-package-name-here]
   • Uninstall the app:
     adb uninstall [paste-the-package-name-here]

That should do the trick! Let me know if any step is confusing.

内容的提问来源于stack exchange，提问作者suntop