Smart Lock Firmware Update Guide¶

Guide to smart lock firmware updates for UK homes covering update methods, security improvements, feature additions, troubleshooting update failures, and keeping locks current.

Why Firmware Updates Matter¶

Firmware is the built-in software controlling your smart lock. Manufacturers release updates for three reasons: security patches (critical - fix vulnerabilities), feature additions (new capabilities), and bug fixes (operational improvements). Most locks auto-check for updates via WiFi or app via Bluetooth. Updates are 1-10MB and take 2-5 minutes. During installation, the lock may be briefly unavailable. Yale releases updates every 3-6 months, Nuki every 2-4 months, Ultion every 3-6 months. Outdated firmware leaves the lock vulnerable to known exploits - always install promptly.

Updating Your Smart Lock Firmware¶

Step 1: Open the app and check for updates (Yale Home: Settings > Lock Settings > Firmware Update. Nuki: Device Settings > Firmware Update). Step 2: Read release notes. Step 3: Ensure battery is above 30%. Step 4: Start the update - the lock may disconnect during installation. Do not close the app or walk away. Step 5: Lock reboots after installation (30-60 seconds). Step 6: Test all functions after reboot. Step 7: If update fails, reset by removing batteries for 30 seconds and retry. Step 8: If repeated failure, contact support. Enable automatic updates if available. Manually check every 3 months even with auto-updates.

Specifications and Comparison¶

Brand	Update Frequency	Update Method	Auto-Update Support
Yale	Every 3-6 months	App via BT/WiFi	Yes
Nuki	Every 2-4 months	App via BT	Yes
Ultion	Every 3-6 months	App via BT/WiFi	Yes
Lockly	Every 4-6 months	App via WiFi	Yes
August	Every 3-6 months	App via BT/WiFi	Yes

FAQ¶

Can I skip a firmware update?: You can postpone but not permanently skip. Security updates fix vulnerabilities that could compromise your lock.
What if the update fails halfway?: The lock retains the previous firmware version. Remove batteries for 30 seconds, reinsert, and retry.
Do firmware updates change how the lock works?: Updates improve rather than change core operations. Release notes detail changes. Review before installing. For more information see our Smart Lock for Holiday Lets and Airbnb UK.

Last updated: 2026-05-31.

External Resources¶

For further information consult authority guidelines at the British Standards Institution (BSI).