Customer Center

1. Initial password is 1.2.3.4.5.6.7.8.9.0
2. Erasing the password is not enabled.
3. When new password is set, previous password is automatically deleted.
4. Password can only be set with number pad(1,2,3,4,5,6,7,8,9,0)
5. Set up button (S) is in the main body, after removing the battery cover.
6. Check the password after setup with the door open.

[Setting/Changing Password]
① Press Set up button (S) once
② Input new password (4 to 10 digits)
③ Press Set up button (S) once again to finish.

1. Multiple card keys must be registered all together at the same time.
2. When new card key is registered all previous card keys are automatically deleted.
3. When you lose one of the card keys, register all other card keys you possess and the lost card key is deleted.
4. Set up button (S) is in the main body, after removing the battery cover.
5. Set up button is the cogwheel shaped icon right side of the 0 number pad.
6. After registering card keys, test all card keys and check whether authentication is proper for all keys.

[Setting/Changing Card Key]
① Press Set up button (S) once
② Touch the card key, wait for beep sound (Repeat for multiple card keys)
③ Press Set up button (S) once again to finish.

[Deleting all card keys]
① Press password
② Press set up button in number pad (Cogwheel icon)
③ Press 2 and then 3
④ Press password again
⑤ Press set up button again to finish.

Keyin products can normally register 99 card keys.
※ Specific models can have different specifications. Check each model's manual for accurate specifications.

If alarm continues even after below actions, check installation environment or contact service center.

[Turning off from outisde]
Authenticate the lock using registered key (password, card, fingerprint etc)

[Turning off from inside]
Press open close button for 5 seconds / Press Set up button (S) for 5 seconds

[Auto Locking Setting]
Press password -> Press number pad set up button (cogwheel icon) -> Press 6, 1 -> Press set up button (cogwheel icon) again to finish

[Manual Locking Setting]
Press password -> Press number pad set up button (cogwheel icon) -> Press 6, 3 -> Press set up button (cogwheel icon) again to finish
※ When in manual locking mode, press open close button to lock from inside, or touch the outer touch pad for 1 second to lock from outside

Volume can be set in 7 stages from mute to highest volume.
Error sound, alert, system sound in settings are all set to maximum volume regardless of volume setting.

[Volume setup] Press password -> Press number pad set up button (cogwheel icon) -> Press 8 -> Press 1 (increase volume) or 3 (decrease volume) -> Press set up button (cogwheel icon) again to finish

When unauthorized authentication is input 5 consecutive times, the lock sets itself to lockdown mode for 3 minutes. During this lockdown no authentication is authorized. After lockdown, in the first authentication, fake password is limited.

[Unlocking 3 min lockdown]
1. There is no way to unset lockdown from outside. After 3 minutes lockdown is automatically unset with a beep sound.
2. From the inside, lockdown can be unset by pressing open/close button or manual knob.

1. 'Fake password' is allowing fake password in the front or back of the real password to prevent password exposure.
2. When password input is wrong, users can continue pressing real password and lock will be authenticated with this 'Face password' feature.
3. 'Fake password' is not enabled in manager mode.

[How to use]
Press password + fake numbers or fake numbers + password + open button

Only card keys supplied by Keyin is enabled for register due to security reasons.

Keyin lock can be changed to Manager mode, with more managing functions than normal mode. Manager can grant access to multiple users in manager mode.

1.Manager password is essential in setting authentication to users.
2. Authentications(password, card, fingerprint etc) can be registered and deleted to each users.
3. When lock is changed to manager mode, all authentications are reset and thus deleted.
4. In manager mode, 1 manager password, 99 user passwords, 99 card keys, and 99 fingerprints can be registered.
5. 'Fake password' is enabled in manager mode.
6. Manager password cannot be reset. If manager password is forgotten, you need to contact our service team.

[Changing mode from normal to manager]
Press password -> Press number pad set up button (cogwheel icon) -> Press 99 -> Press manager password to register -> Press manager password again -> Press set up button (cogwheel icon) again to finish

[Changing mode from manager to normal]
Press password -> Press number pad set up button (cogwheel icon) -> Press 99 -> Press password to register -> Press password to register -> Press set up button (cogwheel icon) again to finish

Please contact the Customer Center at 1800-8667 for local installation location information.

Basic specification is door thickness of 40~50mm.
Door thickness of 35mm~40mm needs to be checked by specialists before installation.
Door thickness of over 50mm is possible for installation but needs additional parts.
Maximum of 80mm can be intalled with this additional part but differs in various environments.

Please contact our customer center at 1800-8667 for local installation locations

Generally, all standard KS-certified fire doors are compatible for installation.
For glass or chassis doors, dedicated models (specifically designed for glass or chassis) must be used. However, installation may not be possible depending on the specific condition of the door.
For wooden or specialty doors, compatibility depends on the door type and environment. Since these may require additional drilling or modification, installation costs may increase due to the higher difficulty.
Please consult your retailer or installer to confirm compatibility before purchasing.

If the lock is directly exposed to rain, water can be permeated into the product causing malfunction.
Direct sun ray can cause discoloration or crack. High temperature can trigger alarms, thus installation to direct sun ray is not recommended.

The warranty period is one year from the date of purchase.
Product warranties are fulfilled in accordance with the Consumer Damage Compensation Regulations. (Valid only within Korea; excludes other countries/regions.)
When requesting service, you must present a product warranty certificate that accurately indicates the purchase date and installation information.
If the warranty certificate is unavailable, proof of purchase can be substituted with a store receipt, credit card slip, or cash receipt (Handwritten/informal receipts are not accepted).

Service fees will be charged for items classified as Paid Service, even within the warranty period.

[Paid Service Criteria]
1. When the warranty period has expired
2. Malfunctions or damage caused by natural disasters (lightning, fire, salt damage, flood, etc.)
3. Malfunctions or damage caused by external environmental factors (condensation, rain, prolonged direct sunlight, or locations with high humidity/salinity)
4. Service Requests for Non-Defective Issues
① Product damage resulting from a lost password
② Requests for re-installation due to improper installation by the consumer
③ Inspections of components other than the product (e.g., doors, door closers, etc.)
④ Service visits for product relocation or re-installation
⑤ Service visits due to unfamiliarity with the user manual
⑥ Replacement of batteries or other consumable parts
5. Malfunctions Due to Negligence or Careless Handling
① Malfunctions occurring after unauthorized modification or alteration of the product
② Malfunctions resulting from self-installation, disassembly, or repair by the consumer
③ Malfunctions caused by careless handling (e.g., external impact, breakage)
④ Malfunctions caused by mixing different batteries or using defective batteries (e.g., leakage)

If the Main PCB (Main Circuit Board) was replaced during service, all authentication methods must be re-registered before use.

When there is someone inside, new authentication can be set. If there is no one inside, you need to contact our service team.

[Password registeration]
① Press Set up button (S) once
② Press new password (4~10 digits)
③ Press Set up button (S) once again to finish.

1. Re-register all card keys except the lost one and the lock will reset the previous registeration and only maintain last registered cards.
2. All card keys can be deleted also.

[Card key registeration]
① Press Set up button (S) once
② Touch key pad with card keys until you hear beep sound (Repeat for multiple cards)
③ Press Set up button (S) once again to finish.

[Card key complete deletion]
① Press password
② Press Set up button in key pad (cogwheel icon)
③ Press 2 3
④ Press password again
⑤ Press Set up button in key pad (cogwheel icon) again to finish

Normally, the battery will last for 8~12 months.
However, difference in usage(such as Bluetooth connection) will change duration accordingly.

When a musical signal is sounded by the lock, it is time to change the battery.
In this case, change all 4 batteries to 1.5V AA alkaline cells.

※ Due to battery properties, leakage can occur damaging the lock in below conditions.
- When battery is not replaced after the musical signal alarm.
- When part of the batteries are replaced not all at once.
- When a broken battery is used.
- When batteries with different manufactures are used together.

In case the battery is fully discharged, emergency electricity can be connected using temporary power outlet.
Battery connection must be maintained until the lock is fully unlocked.

[How to use]
① Prepare 1 9V alkaline battery
② Contact 9V battery to the outside temporary power outlet -> Wait for the power on melody
③ While keeping contact of the battery, authenticate the lock.

You can download all manuals from our website. [Customer -> User Manual]

Consultation and service requests are available 24 hours a day, 365 days a year.

※ For paid services, additional charges will apply for service visits during nighttime, late-night hours, or holidays.
Unless it is an emergency, we recommend scheduling your service between 09:00 and 18:00.

Since the product's performance is highly dependent on the installation condition of the door, it is essential to check its operation within its installed environment after replacing any defective parts. Therefore, we primarily provide on-site dispatch services.

In addition, with the exception of general consumables and simple components (such as battery covers), service parts are not sold separately. This is because we cannot provide refunds or warranties for parts if malfunctions or damage occur during self-disassembly, repair, or installation by the customer.

If your product requires repair, please contact our Customer Center (1800-8667) to register your request and receive assistance through a local service center.

On-site service fees are only charged for paid (out-of-warranty) repairs.
To resolve urgent customer inconveniences, we provide 24-hour emergency dispatch services.
Standard Hours (Weekdays 09:00–18:00): A basic on-site service fee is applied.
After Hours (Nights, Late-night, and Holidays): Additional surcharges will be added to the basic fee.
Specific fee details will be provided when you register your service request through our Customer Center.
Recommendation: Unless it is an emergency where the door lock fails to open or close, we recommend requesting and receiving service during standard weekday business hours to avoid extra charges.

For inquiries regarding the purchase of consumables and simple components, please contact our Customer Center at 1800-8667.
※ Please note: Service parts that require disassembly of the product are not available for individual sale.

1. Supported Devices OS Standard
- Android OS 8.0 or higher (OS 8.0~9.0 requires separate settings in item 4 below)
- Apple iOS 13.0 or higher

2. The app can be downloaded from Google Play or the App Store by searching for "Keyin" or "keyin."
※ The app will not appear in search results if the device is not supported.

3. After installing the app, you must sign up to use the Keyin app.
※ When verifying the email account, you must confirm it on a smartphone. (PCs may show an error page)

4. Android OS 8.0~9.0 requires manual settings to use the Smart Open function.
- Phone Settings > Applications > Select "Keyin app" > App Permissions > Turn ON Location, Storage, and Camera (Always Allow)
- Phone Settings > Applications > Select "Keyin app" > Battery Optimization > Show All > Turn OFF Battery Optimization for "Keyin app"
※ If Battery Optimization is ON, the Keyin app may switch to "Power Saving," restricting background operation, and the Smart Open feature may not work properly.

5. Bluetooth, Location (GPS), and Mobile Data (or Wi-Fi) must always be ON in your phone settings to use the app without restrictions.
- If Bluetooth is OFF, the Keyin app will not connect to the device, making device control and settings impossible.
- If Mobile Data (or Wi-Fi) is not connected, the app will not launch, and you will be stuck on the login page.
- If Location (GPS) is OFF, location-based services (Smart Open/Touch) cannot be used.

6. If data usage is restricted due to exhaustion of mobile data, app access and usage will be limited.
※ The app can be used when Wi-Fi is connected.

The Smart Touch/Smart Open feature is a location-based service that activates when you exit and re-enter the door lock range (about 150m), and then the door will open when the phone is in close proximity and Bluetooth is connected.
※ The location-based service's operation may not be perfect depending on GPS or Bluetooth environment.

To ensure smooth operation, please check and apply the following settings (for Android phones):
1) Keep Location (GPS) ON in phone settings
2) Location permission must be set to "Always Allow" in Keyin app settings.
※ Phone Settings > Application Info > Select Keyin app > Permissions > Set Location (GPS) to "Always Allow"
3) Ensure Battery Optimization for Keyin app is OFF
※ Phone Settings > Application Info > Select Keyin app > Battery > Battery Usage Optimization > Set to "Not Optimized"
4) To improve GPS accuracy, enable accuracy enhancement in the phone's location menu (for Android OS 10.0 or higher)
※ Phone Settings > Location > Improve Accuracy > Enable Wi-Fi Scanning / Bluetooth Scanning

If the phone is not locked or if Smart Open is set up, the person who finds the phone may be able to open the door lock.


For security reasons, you can ask a family member with the same permissions to delete the lost device from the app.

The Keyin app logs in with a user account, and account information is stored on the server.
After changing devices, you can log in with the account you were using, and continue using the app with the same device registration as before.

Currently, there is no limit to the number of users (family/guests).
However, the app is designed based on typical family and some guest users.
If you have many users, you will need to pay more attention to managing them.

The more people you invite,
the more you should limit the number of family members with full control over the door lock and app.
Be cautious when setting and managing guest names/periods.

Family User: Full use of all app functions and permissions (Since all family users have the same permissions, it’s recommended to limit the number of invites).
Guest User (App): Can only use the entry feature in the app.
Guest User (Password): Cannot use the app but can unlock the door with a temporary password.

You will need to invite the deleted user again.

As mentioned during guest invitation (password), you cannot edit or delete issued passwords.
Once the issued period expires, the guest password will be automatically deleted.

If you need to restrict door lock access before the password expires, you can set it as follows:
In this case, all guest passwords issued for that door lock will be restricted.

[Keyin App > Entry > Select the door lock with guest password issued > While connected to door lock via Bluetooth, go to settings in the top right > Set "Guest Password" to "Disabled"]

※ Since guest passwords cannot be edited or deleted, it is recommended to use the app for guest invitations.

If "Key Retrieval Failed" appears when clicking on the invitation message, it means the following, and the invitation can no longer be used:
In this case, you need to contact the administrator (the person who invited you) to resend the invitation.

- The invitation link has already been used (Shared links can only be clicked once).
- The guest invitation link was shared using the [Copy] button.
- The link is expired due to the end of the set entry period.

※ Restrictions are in place to prevent indiscriminate sharing of invitation links.

When connected via Bluetooth, real-time notifications are only sent for the following app-based actions:
- When the door is opened directly from the Entry menu in the app.
- When the Smart Open/Touch is activated after entering/exiting the set range.
- When Smart Open/Touch is activated after being set in the app.
※ Once the Smart Bridge is released and integrated, you will also receive notifications for direct operations of the door lock.

Only one device can be registered to the door lock.
If a device is already registered, the door lock will not be searchable.
Confirm the initially registered user and issue the key by inviting family/guest as needed.
※ Registered family members will have the same rights and can use all app features.

During the registration process between the smartphone app and the door lock, the door lock may be successfully registered, but due to communication issues, it may not appear as registered in the Keyin app.
If you attempt to register again, the door lock will not be searchable as it is already registered.
In this case, perform a "forced Bluetooth deletion" on the door lock.
Alternatively, if there is truly no registered person, you can force delete and re-register.

1) Door lock product group: Registration button (S) -> Press the setup button twice (number pad icon to the right of 0) -> Enter door lock password -> Press the setup button once
2) Keyin E: Press the registration button for 10 seconds (completion sound will play when done)

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