How to Instantly Disable Face ID in an Emergency
There's a button combo built into every iPhone that turns off Face ID on the spot and locks the device to passcode-only. It takes two seconds, works on every model, and is worth knowing before you need it.
Quick answer
Hold the side button and either volume button at the same time for about two seconds. Your iPhone buzzes, then the Emergency SOS slider screen shows up — the instant that screen appears, Face ID is off. Dismiss the screen without calling anyone, and the phone now requires your passcode to unlock. On older models, five quick presses of the side button does the same thing.
That's worth more than it sounds. Face ID is convenient, but a passcode gives you stronger protection in a few specific situations: someone holding your phone up to your face, a border checkpoint, a moment where you'd rather not hand over an unlocked device. The gesture above gets you there in two seconds. No menus required.
Step-by-step
Method 1 — side button + volume button (iPhone X and later, fastest) Press and hold the side button and either volume button together for about two seconds, until you feel a haptic buzz and the Emergency SOS slider appears. That's it. Face ID is already disabled at this point, whether or not you do anything else with the screen. Swipe away or press the side button again to dismiss it.
Method 2 — five rapid side-button presses (older or alternate-configured models) Quickly press the side (sleep/wake) button five times in a row. Same Emergency SOS screen, same result: Face ID off, passcode required from here on.
Before you need it — turn off Auto Call Because this gesture is built on top of Emergency SOS, it can also dial emergency services if "Call with Hold and Release" is turned on. Go to Settings > Emergency SOS and turn that off so the gesture only locks the phone, without placing a call. Do this once, ahead of time — not in the moment you actually need the lock.
This is a different tool from Stolen Device Protection, which guards against someone who already has your passcode. The button gesture above locks Face ID out entirely, on demand, even if nothing's been stolen yet.
Common problems and fixes
"I held the buttons but Face ID still worked." You probably felt the haptic buzz but didn't wait for the actual SOS slider screen to appear. Hold until you see it — that screen is the trigger, not the buzz alone.
"It called 911 by accident." Auto Call was still on. Go to Settings > Emergency SOS, turn off "Call with Hold and Release," then test the gesture once — fully dismissing the screen without calling — so you know what to expect next time.
Why does this even work? Face ID and Touch ID were never meant to replace your passcode. iOS already falls back to passcode-only after a restart, 48 hours without an unlock, five failed face-match attempts, or a remote lock command. The button gesture just triggers that same built-in fallback on your terms, instead of waiting around for one of those conditions to hit. And courts in the U.S. have generally treated a passcode differently from a face or fingerprint scan — part of why knowing where the line sits between what can and can't be compelled is worth five minutes of your time.
Frequently Asked Questions
Does disabling Face ID with the button gesture also call 911? Only if Auto Call (or "Call with Hold and Release") is turned on in Settings > Emergency SOS. With it off, holding the buttons brings up the slider screen without dialing anyone — Face ID is disabled the moment the screen appears either way.
How do I turn Face ID back on afterward? Enter your passcode once to unlock the phone normally. Face ID re-activates automatically; there's nothing to re-enroll or toggle.
Does this work on every iPhone? Yes. iPhone X and later use the side button + volume button hold; other models, and some regional configurations, use five rapid presses of the side button. Both trigger the same passcode-only lock.
Is a passcode actually safer than Face ID? For everyday theft and snooping, Face ID is both convenient and secure. But someone can trigger it just by holding your phone up to your face, and a passcode carries more legal weight in the U.S. than a biometric scan — which is why it's worth having this gesture ready.
Doing this with Privara
The gesture above locks the whole phone. But it's worth asking a narrower question: if someone did get a look at an unlocked screen, what would actually be exposed?
That's the gap Privara closes. It's a private vault that looks and works exactly like an ordinary calculator — nothing about it signals "vault app" from the home screen — and everything inside is protected by one AES-256-encrypted vault that covers photos, videos, documents, and contacts, not just pictures. You enter your PIN into the calculator to open it; you can also layer Face ID or Touch ID on top of that PIN for one more step. Nothing is uploaded anywhere by default, no account is required, and if someone enters the wrong PIN, Privara can quietly capture a photo of them trying.
The button gesture in this article buys you two seconds of protection at the lock screen. Privara extends that same instinct to everything you'd rather keep off the main camera roll and contacts list in the first place. Get Privara on the App Store and set up your vault in under a minute.