Install @t Filter

Which kind of Android phone?

Samsung: AT Filter uses Knox to lock uninstallation, with no cable and no reset. If the install is refused, turn off "Auto Blocker" (Settings → Security and privacy).

Android phone or tablet

1. Install the AT Filter app on the phone (no reset needed). Download
2. Open AT Filter and enter this code:
   YOUR-CODE
3. Tap “Turn on the filter” and accept the VPN connection request. AT Filter Video also appears on the home screen.
4. Still in AT Filter, follow “Simple protection”: “Always-on VPN” and “Block connections without VPN”, then uninstall protection. If the filter is turned off, you will see it here.

Steps for Samsung

• If Android refuses the installation, turn off "Auto Blocker" (Settings → Security and privacy).
• Install the app, enter the code and accept the VPN request: AT Filter uses Knox to lock uninstallation, with no cable and no reset.
• If options are greyed out: Settings → Apps → AT Filter → ⋮ menu → "Allow restricted settings", then go back and enable Accessibility.
• Battery: Settings → Battery → Background usage limits: remove AT Filter from "sleeping apps" and choose "Unrestricted".

Full protection (optional): for a phone that must never be unlocked, factory-reset it and install AT Filter at first start-up. The AT Filter team will guide you.

In your browser

The AT Filter extension blocks adult sites and enforces SafeSearch in the browser, even without the app. Pick yours.

Finally: check

When the device is linked, it shows in your console as "Filter on". Tick as you go:

• The AT Filter app is installed and the install code entered.
• The filter is on (VPN request accepted).
• Device administrator and Accessibility are enabled.
• The device appears in the management console, status "Filter on".

Get my installation code

Enter the email address of your @t Filter account: we send you a code valid for 2 hours.

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