Installation, Calibration & Compatibility Problems

A smart lock that fails to lock, reports an error, or disappears from an app is not automatically incompatible with the door. The cause may be a binding bolt, an uncompleted handle sequence, weak power, calibration, Bluetooth setup, the home network, or an integration that exposes fewer controls than the lock’s own app.

Start with the physical door and the exact lock model, then work outward to the app and network. These guides explain how to narrow the cause while preserving a reliable way to enter and leave.

Start with the symptom

• Smart Lock Does Not Work: Fit Problem, Setup Problem, or Incompatibility? lays out the complete triage order.
• Door Sag, Strike Pressure, and Alignment focuses on drag and frame contact.
• Calibration, Motor Torque, Jams, and Latch/Bolt Confusion separates mechanical movement from app states and calibration.
• Handle-Lift and Multipoint Manual-Sequence Problems covers doors that need a handle or hookbolt sequence before the key turns.
• Key, Emergency, Door, and Lock-State Problems separates physical access, door sensing, and reported lock state.
• Battery, Charging, Temperature, and Weather Problems covers power and environmental conditions.
• Wi-Fi, Bluetooth, Thread, Hub, Firmware, and Feature Failures traces problems in the connected-home path.

Model-specific guides

Some setup and recovery behavior belongs to one lock model. Follow the guide for your exact product:

• Aqara U200 calibration after installation
• Aqara U300 door fit and installation checks
• Nuki calibration and remote state checks
• Aqara U300 Matter binding and additional ecosystems
• Yale Linus L2 DoorSense troubleshooting
• SimpliSafe Smart Lock calibration
• igloohome Deadbolt Go calibration
• Re-hand a Yale Assure lock after installation or a door move
• Level Lock “Unable to Lock or Unlock” error

These are model-scoped procedures, not instructions for other locks. If the door cannot be operated normally by hand, the lock may be jammed, or you cannot confirm its security state, stop remote retries and use the manufacturer’s instructions or a qualified locksmith.