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Here are the installation dimensions for our locks.

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When installing the latch mechanism, the latch tongue has a smooth side and a bumpy side.

If the door opens inward (into a room)  

• The bumpy side should face the inside of the room
• The smooth side faces outside 

If the door opens outward (toward the outside)  

• The bumpy side of the latch should face the outside
• The smooth side faces inside

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Please use pliers to break the latch from the place marked in the picture below, take out the square shaft, please contact us by our after-sales email: support@yamiry.com.

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You can adjust the handle direction to fit your door as follows:

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When the lock has just been installed, the lock is in a locked state and the external handle cannot turn the latch, the lock needs to be programmed so that the external handle can turn the latch when it is successfully unlocked.

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Please make sure you have installed the smart lock correctly and the door lock is not tilted after installation. Please remove and reinstall according to the manual. If the issue still cannot be solved, please contact us via support@yamiry.com

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To confirm the lock status, simply turn the lock handle downward and see if the door opens.

Note: the handle will always turn (whether locked or unlocked).

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Check to see if you have entered the exact account number and also look for it in the spam email, or register with a new email address.

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Step 1: Please check that the square hole of the latch is horizontal and not inclined.

Step 2: Please check if the latch is damaged. If the latch is damaged, please contact us to send you a new one to replace it.

Step 3: Please reinstall the smart lock and make sure the lock is not skewed.

If the issue still cannot be solved after following the above steps, please contact us by our after-sales email: support@yamiry.com

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STEP 1: Please make sure your lock is in the initialization state before pairing. If the initialization is not completed, please follow the steps below to initialize the lock.

STEP 2: Please authorize Bluetooth permissions for your NICE DIGI APP according to the video below：

STEP 3:Connect the lock with APP

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You can enable passage mode in the app to keep the lock unlocked for a specific period of time, and after the passage mode is finished, the lock will be locked automatically.

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They need to download and register the NICE DIGI APP and then accept the invitation in the APP.

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1.You can use the mechanical key to unlock.

2.You can use a power bank to temporarily power your door lock and then unlock it.

Scenario 1: Just installed 4 new batteries, but the battery level is not 100%.

Answer: The power display may have errors due to unstable voltage, but it will not affect normal use and will display normally after a period of use.

Scenario 2: After replacing new batteries, it quickly runs out of power within a few days and prompts low battery.

Answer: The PCB may be faulty. Please contact us via support@yamiry.com and we will replace it with a new lock free of charge during the warranty period.

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For privacy reasons, the app does not show the password, you can name the password as a name.

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The lock supports 50 passwords, fingerprints, key fobs.

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You can set up several home management in the app then add different locks for different properties and the lock data will not affect each other.

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You can remotely generate a one-time password or a 5-minute valid password in APP, this function doesn't need APP to connect the lock via Bluetooth or WiFi.

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The lock does not have an internal locking button, just turn on the auto-lock function to ensure that it locks every time you close the door, or you can press and hold the “√” on the keypad to lock and close the door, or use the app to lock.

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Locks don't support rekey, which means one key for multiple locks, but one key fobs can open multiple locks.

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The lock supports NICE DIGI APP, TUYA APP, Smart Life APP, but we recommend using NICE DIGI APP, other APP locks are not supported at the moment.

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Since the Wi-Fi protocol consumes more power compared to the Bluetooth protocol and requires a persistent connection, directly connecting a smart lock to a Wi-Fi network would significantly impact battery life. Therefore, we adopted a more efficient solution by adding an additional Wi-Fi gateway as a relay. The smart lock communicates with the gateway via Bluetooth, while the gateway connects to the network using Wi-Fi. This approach not only enables the smart lock to connect to the Wi-Fi network but also significantly reduces power consumption, thereby achieving longer standby time.

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In fact, connecting the smart lock to your phone via Bluetooth is sufficient for most people's daily needs. Below, we have listed the functions that require a gateway, so you can decide whether to purchase one based on your specific requirements.

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Please follow the video below to add WiFi Gateway on the NICE DIGI APP and pair it with your lock. After pairing, you can connect your lock to Alexa and Google Assistant.

Important Notice: Only WiFi gateways that support tuya or NICE DIGI APP can be added to NICE DIGI APP. It is recommended that you purchase the gateway from the following link: https://www.amazon.com/dp/B0C7QX7694

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Multiple locks can be connected to one gateway within 30 ft range, and the closer the gateway is to the lock, the more stable the signal will be.