Lock Settings Behind a Code

Updated Today · 3 min readIntermediate

FMX for iPad now includes a Lock Settings option that helps prevent guests from entering the Settings panel during an event.

This is especially useful for unattended booths, retail kiosks, self-service activations, or any setup where guests may interact with the booth without an operator standing nearby.

What It Does

When enabled, the Exit to Settings corner shortcut will no longer open Settings immediately.

Instead, FMX displays a full-screen lock screen asking for a numeric code. Only after the correct code is entered will the operator be allowed into Settings.

The corner shortcut itself still works the same way: press and hold the top-left corner of the screen for 1 second. The lock simply adds a PIN step before allowing access to the Settings panel.

How to Set It Up

  1. Open Global Settings.
  2. Scroll to the Advanced section.
  3. Find Lock Settings.
  4. Turn the toggle On.
  5. In the Access Code field that appears, enter your numeric code, up to 12 digits.
  6. Tap Save at the top of the Global Settings panel.

The next time someone triggers the Exit to Settings corner shortcut, the keypad will appear before Settings opens.

What the Lock Screen Looks Like

The lock screen appears as a clean full-screen overlay with:

  • A numeric keypad from 0 to 9
  • A masked code input field
  • A delete key next to the 0 for corrections

Once the correct code is entered, FMX unlocks Settings. If the code is incorrect, the input field shakes briefly and the lock screen closes automatically, returning the user to the guest experience. There is no Cancel button and no retry loop — simply trigger the corner shortcut again to try once more.

Important Notes

  • The code is numeric only, making it easy to use on touch screens.
  • The code can be up to 12 digits.
  • If the lock is enabled but no code is configured, FMX will use the default fallback code: 1234.
  • Set your own code before deploying the booth at an event.
  • The lock only protects the Exit to Settings corner shortcut.
  • It does not change the rest of the guest experience.
  • If you try to type letters or symbols into the Access Code field in Settings, a small toast reminds you that only numbers are allowed.
  • Changes only take effect after tapping Save at the top of the Global Settings panel.
  • The lock is re-armed every time you exit Settings — the next trip back to Settings always requires the code, even within the same session.
  • Closing and reopening the FMX app does not trigger the lock screen on launch. The lock is only checked when the corner shortcut is pressed from inside the guest experience.

Why This Matters

Unattended booths give guests direct access to the screen, which can sometimes lead to accidental or intentional attempts to exit the experience.

The Lock Settings feature gives operators fast access when needed while keeping end users out of the booth configuration.

Operators can still reach Settings quickly, but guests cannot enter without the correct code.

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