BOTHSTAR YJ42
Användarmanual
Double Sided Keyless Door Knob Lock with Fingerprint and Keypad
Brand: BOTHSTAR | Model: YJ42
1. Introduktion
Thank you for choosing the BOTHSTAR Double Sided Keyless Door Knob Lock. This advanced smart lock provides secure and convenient access control for both interior and exterior doors. With multiple unlocking methods including fingerprint, keypad code, and traditional key, it offers enhanced security and flexibility for homes, offices, and various other settings. This manual will guide you through the installation, setup, operation, and maintenance of your new smart doorknob.

Figure 1.1: BOTHSTAR Double Sided Keyless Door Knob Lock (Satin Nickel)
2. Viktig säkerhetsinformation
- Läs alla instruktioner noggrant före installation och användning.
- Do not attempt to disassemble or modify the lock. This may cause damage and void the warranty.
- Förvara reservnycklar på en säker plats utanför fastigheten.
- Ensure proper battery installation and replace batteries when the low battery voice prompt is activated.
- This product is designed for specific door thickness and backset. Verify compatibility before installation.
- While the lock is IPX6 waterproof, avoid prolonged submersion or direct high-pressure water spray.
3. Paketets innehåll
Carefully unpack the box and ensure all components are present and in good condition. If any items are missing or damaged, please contact customer support.

Figure 3.1: What's in the box?
- Double Sided Fingerprint Door Knob (Exterior)
- Double Sided Fingerprint Door Knob (Interior)
- Adjustable Latch (2-3/8" or 2-3/4")
- Slagplatta
- Monteringsskruvar och hårdvara
- Physical Keys (Set of 4)
- Installationsmall
- Användarmanual
4. Installationsguide
Innan du börjar installationen, se till att din dörr uppfyller följande specifikationer:
- Door Thickness: 1-1/4" to 3-7/8" (32mm to 98mm)
- Backset: Adjustable for 2-3/8" (60mm) or 2-3/4" (70mm)

Figure 4.1: Door thickness and latch dimensions
Installationssteg:
- Förbered dörren: If replacing an existing lock, remove it. Use the provided template to mark and drill holes if installing on a new door.
- Installera spärren: Insert the latch into the door edge. Ensure the latch bolt faces the correct direction (slanted side towards the door frame). Secure with screws.
- Montera den yttre knoppen: Feed the cable from the exterior knob through the door hole. Align the knob with the latch and secure it.
- Installera den inre knappen: Connect the cable from the exterior knob to the interior knob. Align the interior knob with the mounting plate and secure it with screws.
- Sätt i batterier: Open the battery cover on the interior knob and insert 4 AAA batteries (not included), ensuring correct polarity.
- Testdrift: After installation, test the mechanical operation of the latch and knobs.
5. Initial Setup and Programming
The BOTHSTAR smart lock offers multiple functions for enhanced security and convenience.

Figure 5.1: Multi-function & Security Features
5.1 Adding Fingerprints (Up to 100)
- Press the 'Set' button on the interior knob. The lock will prompt for administrator fingerprint.
- Place your finger on the fingerprint sensor. The lock will beep and prompt you to lift and place your finger multiple times for a complete scan.
- Once successfully registered, the lock will confirm with a voice prompt.
- Upprepa för ytterligare fingeravtryck.
5.2 Adding User Codes (Up to 50)
- Press the 'Set' button. Enter the administrator code (default is 123456) followed by '#'.
- Press '1' to add a user code.
- Enter your desired 6-10 digit user code, then press '#'.
- Re-enter the same user code and press '#' to confirm.
- The lock will confirm successful addition.
5.3 Setting Auto-Lock Function
The auto-lock feature can be set to automatically lock the door after a specified delay (2 seconds to 12 hours).
- Press the 'Set' button. Enter the administrator code followed by '#'.
- Press '3' to enter auto-lock settings.
- Enter the desired delay time in seconds (e.g., '5' for 5 seconds) or hours (e.g., '12H' for 12 hours), then press '#'.
- The lock will confirm the setting.
6. Drift
The BOTHSTAR smart lock provides convenient access from both sides of the door.

Figure 6.1: Double-sided access with multiple unlock methods
6.1 Låsa upp med fingeravtryck
- Placera ett registrerat finger på fingeravtryckssensorn.
- The lock will verify the fingerprint (approx. 0.25s) and unlock.
- Vrid på vredet för att öppna dörren.
6.2 Unlocking with Keypad Code
- Enter a registered user code on the keypad.
- Press the '#' key.
- The lock will verify the code and unlock.
- Vrid på vredet för att öppna dörren.
6.3 Upplåsning med fysisk nyckel
- Insert the physical key into the keyhole.
- Vrid nyckeln för att låsa upp dörren.
- Vrid på vredet för att öppna dörren.
6.4 Låsa dörren
- Automatisk lås: If auto-lock is enabled, the door will lock automatically after the set delay once closed.
- Manuellt lås: Press and hold the '#' key on the keypad for 2 seconds to manually lock the door.
7. Underhåll
7.1 Batteribyte
- The lock will provide a voice prompt when batteries are low.
- Open the battery cover on the interior knob.
- Replace all 4 AAA batteries with new, high-quality alkaline batteries. Ensure correct polarity.
- In case of completely dead batteries, the lock can be temporarily powered via a 5V USB-C cord for emergency access.
7.2 Rengöring
- Clean the lock surface with a soft, damp trasa.
- Använd inte slipande rengöringsmedel, lösningsmedel eller starka kemikalier, eftersom dessa kan skada ytan och de elektroniska komponenterna.
- Håll fingeravtryckssensorn ren och torr för optimal prestanda.
8. Felsökning
| Problem | Möjlig orsak | Lösning |
|---|---|---|
| Låset svarar inte. | Döda batterier. | Replace batteries. Use USB-C for emergency power. |
| Fingeravtrycket känns inte igen. | Finger is wet/dirty, sensor is dirty, or fingerprint not registered correctly. | Clean finger and sensor. Re-register fingerprint if necessary. |
| Knappsatskoden fungerar inte. | Incorrect code entered, code not registered, or keypad malfunction. | Verify code. Re-register code. Check for keypad damage. |
| Låset låses inte automatiskt. | Auto-lock feature disabled or incorrect delay set. | Check auto-lock settings and enable/adjust as needed. |
| Låset ger ifrån sig ovanliga ljud. | Mechanical obstruction or internal issue. | Check for obstructions around the latch. If problem persists, contact support. |
9. Produktspecifikationer
| Särdrag | Specifikation |
|---|---|
| Stämpla | BOTHSTAR |
| Modellnamn | YJ42 LOCK |
| Låstyp | Kombinationslås |
| Specialfunktioner | Double sided fingerprint, Double sided keypad |
| Material | Zinc Alloy, Metal Handle |
| Färg | Satin nickel |
| Produktens mått | 8 x 4 x 4 tum |
| Objektets vikt | 3.58 pund (1.63 kilo) |
| Dörrtjocklekskompatibilitet | 1-1/4" to 3-7/8" |
| Latch Bolt Specifications | 2-3/8" or 2-3/4" adjustable |
| Strömkälla | 4 x AAA-batterier (ingår ej) |
| Nödkraft | 5V USB-C |
| Vattentät betyg | IPX6 |
| Driftstemperatur | -22°F till +176°F (-30°C till +80°C) |
| Fingeravtryckskapacitet | 100 |
| Användarkodens kapacitet | 50 |
10. Garanti och support
BOTHSTAR provides a comprehensive warranty and dedicated customer support for your smart lock.
Garantiinformation:
- Gratis ersättning: Enjoy a free replacement for your product within 1 year from the date of purchase.
- Lifetime After-Sales Customer Service: We are committed to providing support for the lifetime of your product.
Teknisk support:
For any technical assistance, troubleshooting, or warranty claims, please contact our 24/7 online technical support. Refer to the contact information provided on the product packaging or the official BOTHSTAR webplats.
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