How to Fix OnePlus 13 App Lock Not Working

The App Lock feature on your OnePlus 13 keeps your private apps secure. It prevents others from opening sensitive apps without authentication. But when it stops working properly, your privacy could be at risk.

If App Lock fails to activate or doesn’t prompt for a password, it usually means something is off in your settings or the system is restricting it in the background. Here’s how to fix it.

Why Your OnePlus 13 App Lock Might Not Be Working

• App Lock is disabled or not properly configured.
• Battery optimization or background restrictions are interfering.
• The system cache is corrupted.
• The app or system software is outdated.
• Lock screen security is turned off.

Re-enable App Lock.

Sometimes the feature becomes inactive after a software update or system reset. Re-enabling it refreshes its configuration.

1. Open Settings, and then tap Privacy.
2. Tap App lock, and then toggle it on.

Enter your PIN or password, then select the apps you want to lock again.

Check Lock Screen Security.

App Lock relies on your lock screen method for authentication. If you disabled your screen lock, App Lock will stop functioning.

1. Open Settings, and then tap Security.
2. Tap Screen lock, and then set a PIN, password, or fingerprint.

Once enabled, App Lock should start prompting you again when opening locked apps.

Turn Off Battery Optimization for App Lock.

Battery optimization can stop background services like App Lock from running properly. Disabling it ensures App Lock remains active.

1. Open Settings, and then tap Apps.
2. Tap Special app access, and then tap Battery optimization.

Find App Lock from the list, select Don’t optimize, and confirm.

Clear Cache and Data for the App Lock Service.

A corrupted cache can cause App Lock to malfunction. Clearing it forces the system to rebuild fresh data for the service.

1. Open Settings, and then tap Apps.
2. Tap App management, and then tap App Lock.

Tap Storage and cache, and then select Clear cache followed by Clear storage.

Update the System Software.

Outdated software may have bugs that affect App Lock stability. Updating ensures you’re using the latest security and performance patches.

1. Open Settings, and then tap About device.
2. Tap OxygenOS version, and then tap Check for updates.

If an update is available, download and install it. Restart your phone after the installation completes.

Reset All App Preferences.

If App Lock still doesn’t work, resetting app preferences can fix hidden permission or restriction conflicts.

1. Open Settings, and then tap Apps.
2. Tap App management, and then tap Reset app preferences.

Confirm the action. This will restore default permissions and background settings without deleting personal data.

The App Lock feature is an essential privacy tool on the OnePlus 13. Once it’s working again, your apps will stay protected behind a PIN, password, or fingerprint.

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