If your Lockin Veno Pro palm-vein unlock is not working, first check whether the reader wakes up. Tap the keypad if it does not, then face the sensor with your uncovered palm about 4 inches (10 cm) away. If the reader wakes but rejects your hand, check positioning, the sensor surface and your saved palm entry. Stop if the lock reports too many attempts, and use a working authorized alternative.
These checks are for Lockin Veno Pro. Its touchless palm entry and automatic wake-up are separate functions: waking the reader prepares it to scan; a successful recognition is what starts unlocking.
Is the palm reader asleep, rejecting a scan or already recognizing you?
Watch the palm-vein indicator, rather than relying on a beep alone. The Veno Pro manual's indicator guide, page 16, distinguishes these states:
| What you observe | What it tells you | Next check |
|---|---|---|
| No palm-reader light as you approach | Automatic wake-up has not visibly occurred | Tap the keypad and check the wake-up setting. |
| A breathing, multicolor palm light | The palm function is awake | Check your hand position and saved entry. |
| Three red flashes from the palm indicator | The unlock attempt failed | Correct the presentation; stop if a restriction appears. |
| Three green flashes from the palm indicator | Recognition succeeded | If the door still will not open, describe that separately to support. |
A recognized palm followed by a failure to move the bolt needs a different investigation from a reader that never detects your hand. Note any accompanying message rather than assuming both symptoms have the same cause.
If the Lockin palm sensor is not waking
Touch the keypad once, then present your palm. Lockin's troubleshooting FAQ specifically recommends manually waking the panel when automatic activation fails.
If scanning works after that tap, check Lockin Smart → Devices → your Veno Pro → Settings → Door Lock Settings → Auto Wake-Up with Palm Vein. Enable it if you want automatic activation as you approach; leaving it off permits manual wake-up and saves power. The manual also describes a five-second wake-up pause when leaving home; an immediate turnaround test can fall within that pause. See the Veno Pro manual, pages 2 and 7–8.
The useful result to record is simple: does a keypad tap wake the reader when walking up does not? That helps support distinguish the activation step from the scan itself.
If the reader wakes but does not recognize your palm
Start with the hand you enrolled. Stand directly in front of the door and put your palm in front of the sensor, as Lockin's FAQ recommends.
- Uncover your palm. Remove gloves or anything held across it so you can present the palm directly.
- Set the distance and angle. Face the sensor from about 4 inches (10 cm), adjusting your position instead of pressing your hand against the lock.
- Check the sensor window. The manual recommends cleaning the sensor surface when a scan is rejected. Avoid improvised cleaners or scraping; ask support if you are unsure how to remove a mark safely.
The distance, angle and surface checks come from the Veno Pro manual, page 2. Change one thing at a time so you can tell what helped. Do not turn the check into a string of repeated failed scans.
Check enrollment and intentional access settings
From an authorized managing account, open Lockin Smart → Devices → your Veno Pro → Settings → Manage Access and inspect the correct member's palm entry. Lockin's Veno Pro troubleshooting FAQ, page 19, explains where saved credentials are managed.
If positioning and waking the reader do not resolve recognition, Lockin's public FAQ recommends enrolling another palm entry. Adding palm credentials requires a nearby Bluetooth connection to the lock. Before replacing anything, make sure a working backup remains available.
For a non-admin member, have the administrator check whether Key Freeze has paused that person's credentials. Separately, check the palm setting in any active Party Mode configuration. Restore access only when the administrator intends it. See the Veno Pro manual, pages 4–5 and 13.
Stop at a wrong-try warning and use an available backup
If you receive a too-many-attempts warning or a temporary restriction, stop using the affected method and follow the wait shown by your lock or app. Do not assume that every entry method is unavailable. Use a supported, already-enrolled PIN or fingerprint only if it remains authorized and unrestricted, or use your mechanical key. Lockin's wrong-try FAQ describes restrictions by entry method; the guide to too many wrong smart-lock attempts explains the broader recovery checks.
For Veno Pro, the keyhole is beneath the exterior doorbell cover. If the panel is unresponsive and the battery is depleted, the model also supports emergency power through its exterior USB-C port. Follow the Veno Pro battery and backup-access guidance, page 3. Emergency power addresses an empty battery; it is not a remedy for a rejected palm or an access restriction.
When to contact Lockin support
Contact support@lockin.com if the reader stays dark after a keypad tap despite available power, palm recognition still fails after these checks, or recognition succeeds but the door does not unlock.
If both palm and fingerprint entry have failed since installation, mention that combination. Lockin's Veno Pro troubleshooting FAQ, page 8, identifies a main power-cable connection as one possible installation cause. Ask support to guide the installation check; the symptom alone does not prove a cable fault.
Send the exact model, indicator pattern, spoken or app message, whether manual wake-up works, and which authorized alternative still works. Include the app and lock firmware versions if available. A short video can help show the sequence; keep PINs and account passwords out of it.
For a Veno Pro palm-vein unlock that is still not working, use Lockin's support FAQ and current model-specific manual with those observations. They give support a clear starting point for restoring everyday touchless entry.