Lock Not Found in the TTLock App: What to Check

TTLock locks are single-owner devices. Once a lock is bound to an account it stops advertising itself as available for pairing, so it becomes invisible in every app's add-device list — including the app of the person who owns it. That is a deliberate security property, not a bug.

• The lock is already bound to another account. The most common cause by a wide margin: a previous owner, an installer, a landlord, or your own old account still holds it.
• The lock isn't in pairing mode. An idle lock sleeps. It has to be woken before it will show up in a scan.
• You're out of range, or the door is in the way. Bluetooth reaches only a few metres and a solid door absorbs much of it.
• Dead or nearly dead batteries. The Bluetooth radio stops advertising while the keypad may still respond.
• Android needs Location permission. Android blocks Bluetooth scanning without it, so the add-device list stays empty no matter what the lock is doing.

1. Wake the lock. Touch the keypad until it lights up, then start the scan within a few seconds. Repeat the touch if the scan takes a while.
2. Stand within one metre, on the keypad side. Open the door if possible so nothing sits between phone and lock.
3. Grant the scanning permissions. On Android, allow Location and Nearby devices for the app. On iOS, allow Bluetooth under Settings > Privacy & Security > Bluetooth.
4. Fit fresh batteries. Use a matched set of new AA cells. Weak batteries are a frequent cause of a lock that simply never appears.
5. Release the lock from its current account. If someone else added it, ask that admin to open their app and delete the lock. Deleting it in their app unbinds it and the lock returns to pairing mode immediately.
6. Factory reset the lock if no admin is reachable. See the reset procedure below, then scan again straight away — a freshly reset lock pairs readily.

On most TTLock-compatible locks the reset button sits inside the battery compartment, on the inside escutcheon:

1. Remove the battery cover on the interior side of the lock.
2. Find the small recessed reset button near the battery contacts (some models label it "SET" or "RESET").
3. With batteries installed, press and hold it for about five seconds until the lock beeps or the keypad flashes.
4. Release, then immediately open the app and scan for the lock.

Warning: a factory reset wipes everything stored on the lock — all passcodes, cards and fingerprints, plus the admin binding. You will need to re-add every user afterwards. Check your lock's own manual, since the button location and hold time vary between models.

• Buying secondhand? A lock still bound to the seller's account is unusable until they release it. No app can bypass this, and support cannot unbind it for you — ask the seller to delete the lock in their app, or reset the lock physically if you have access to the interior side.
• Close every other app that connects to the lock. If the stock TTLock app or another phone is connected, the lock is busy and will not answer a scan.
• Check that it is a TTLock-compatible model. Locks built on other platforms (Tuya, Zigbee-only, or vendor-specific apps) never appear, regardless of what the box says about "smart" features.
• Restart Bluetooth or the phone. Toggle Bluetooth off for 10 seconds, or reboot, to clear a stale scan cache. More detail in TTLock Bluetooth not connecting.
• Try a different phone. If a second phone finds the lock, the problem is permissions or Bluetooth state on your handset rather than the lock.
• Adding a gateway, not a lock? Gateways use a separate pairing flow and their own reset button — follow the gateway setup guide instead.