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Frequently Asked Questions

We gathered the best of our product experts’ knowledge to make sure we answer all of your questions.

If my Wi-Fi password changes, what do I need to do?

(1) If you change your Wi-Fi password, use the Lechange app to re-configure the Wi-Fi password.

(2) Connect your phone to the Wi-Fi network.

(3) Select cameras which are shown as “Offline”

(4) Go to the preview page and click the gear icon at the top right corner.

(5) Click on the Wi-Fi Config tab.

(6) Follow the prompts to finish configuration and the device will return online again.

“Device has been bound by ***@**” when adding camera to my account.

On the Lechange platform, to protect customer privacy, one device can be added by only one account at a time. If the device was added by other account, you cannot add it again.

(1) If you want to add it to a new account, you must first delete it from the previous account.

(2) If you forgot your account, please email a picture of the device label with a clear view of the SN (serial number) to support@lechange.com and tell us where you bought it.

How many devices could a Lechange account added?

No limitation.

How to add my camera to a new Lechange account?

For security reason, one camera can be bound to only one Lechange account. So if you want to add your camera to a new account, please delete it from the previous account first.

How to delete my camera from the account?

Two methods to delete camera from your account,firstly login into your account in mobile app:

(1) Method 1: go to preview page then click gear icon 1519630476398111E8cc.png on the top right corner, go to device settings page,slide to the bottom then delete device.

(2) Method 2: Click Me->My Device->select corresponding device ->slide to the bottom ->Delete Device

I forgot the cloud storage password.

Please make sure to remember the storage password, there is no way to find out, the default is the Serial Number. If you want to open a video, you must use the password set at that time.

How many Lechange account that a device can be shared?

6

I changed the default password of the device, and I cannot remember it.

Reset the unit and then reconfigure the camera.

How to share your device with family and friends?

(1) Log into your Lechange account.

(2) Click the device you want share then go to preview page.

(3) Click the share icon on the top right corner.

(4) Select Device Share.

(5) Click Add User to share, enter their Lechange account then click save icon on the top right corner. You can also click Cancel to stop sharing.

(6) The account you shared with will receive the shared device. This account can preview and playback, but can’t modify device settings.

(7) A device can be shared within 6 accounts.

How to add device via S/N?

(1) Login the Lechange account which you have registered.

(2) Press the “+” sign at top right corner in “Device” page to get to the device addition page.

(3) Scan the QR code at the bottom of the device or manually input the serial number of the device

The app is always saying “Failed to configure device network”.

Please reset your camera and follow the Lechange process to setup the Wi-Fi connection again, during the configuration process we have some suggestions:

(1) For camera doesn’t have an Ethernet port, during the Wi-Fi connection process we suggest you put your smartphone and camera within 30cm and turn on the phone sound.

(2) If your camera has an Ethernet port and you have an Ethernet cable at hand,you can connect your camera to your router with cable directly. After you successfully added your camera to your Lechange account, you can configure the Wi-Fi settings at the camera’s “Wi-Fi config” page.

(3) If your camera supports only 2.4GHz (means it is not a Dual Band Wi-Fi model), please make sure your smartphone is connected to your router’s 2.4GHz Wi-Fi during the configuration.

The app says “Failed to bind”.

When the app says “Failed to bind”, it means your camera is already successfully connected to your Wi-Fi, but failed to add the camera to your Lechange account. Please double check whether your router is connected to Internet, then try again. Normally the reason is the Internet connection is not stable.

I changed my Wi-Fi, I want to put the camera at a new location, how to connect my camera to my new Wi-Fi?

(1) Firstly please check whether your camera has an Ethernet port and whether you have an Ethernet cable at hand.

(2) If yes, please power on your camera and connect it to your Router with the Ethernet cable, wait till the LED turn stably blue to make sure it has access to Internet. Then login to your Lechange account, find your IPC on “Device” page and go to its settings page, then tap “Wi-Fi Config” and you can connect it to your new Wi-Fi.

(3) If your camera has no Ethernet port or you don’t have a cable at hand, we suggest you reset your camera to factory default, then setup your camera with the new Wi-Fi.

When you buy a cloud storage plan to your camera, you can enjoy

Watch any video recorded in the past 3 days when you sign up a 3-day plan, and the past 7 days when you sign up a 7-day plan, and so on so forth.

For example, if you buy a 7 days monthly storage plan on April 1st, it will expire on May 1st and stop any recording. And you can only view the most recent 7 days video.

How do I setup cloud storage?

(1) On the Device interface, tap image.png , tap the check box of the service type that you want to buy, tap Buy, and then follow the onscreen instructions to complete the purchasing. After the Cloud service is purchased, the image.png turns to image.png.

(2) You will need to enable your alarms on your device, Take motion detection as an example, the event should be enable. Usually alarms are enabled as a default setting on the app.

(3) Receives notifications from APP. Enable Lechange Notifications via “Settings”->” Notifications” on your iPhone and “Me”-> “Settings”-> “Notice” on Lechange APP.

(4) Make sure you have a high-speed internet connection (1.5Mbps+).

Note: Video is recorded on alarm events and standard defination, there is no storage limitation.

How do I buy cloud storage for multiple cameras?

If you own four cameras and would like to subscribe cloud storage for every camera, you need to purchase a subscription for each camera.

Cloud Storage Requirements

(1) High-speed internet connection (1.5Mbps+).

(2) For iOS, the system version should be 7.0 or above, For Android, the system version should be 4.0 or above.

(3) Make sure that your camera has the latest firmware.

How can I receive the alarm message?

(1) Firstly, you need click the enable button in the upper right corner in the picture of the channel of main page.

(2) If it says “Failed to subscribe”, we suggest you ensure the following configuration:

Receives notifications from APP. Enable Lechange Notifications via “Settings”->” Notifications” on your iPhone and “Me”-> “Settings”-> “Notice” on Lechange APP.

(3) Enable Event in the device. Take motion detection as an example, the event should be enable and time schedule should be valid.

(4) Make sure the device is connected to Internet.

(5) After successfully subscribe, you will receive the message.

How to Enable/Disable motion detection by APP?

(1) Log into the Lechange account.

(2) Select the device you want to activate/deactivate motion detection.

(3) Click on the gear icon 1519634086105746OPHl.png on the top right corner of the screen.

(4) Select Alarm option.

(5) Enable/Disable the “Motion Detect”.

(6) Default Activity zone is Full Screen,you can set your cared zone at Activity Zones option.

I changed the settings of the camera, but I cannot save the settings.

Reset the unit and then reconfigure the camera.

How to disable device indicator?

Firstly login into your account in mobile app,go to preview page then click gear icon 151963415742986525kY.png on the top right corner, go to Device Info page,disable Device Indicator.

How to rotate the image when I finished ceiling mounting?

Firstly login into your account in mobile app,go to preview page then click gear icon 1519634170304752WG15.png on the top right corner, go to Device Info page,enable/disable Image Rotate.

How much of my outgoing Wi-Fi bandwidth does Lechange consume?

When the video set to HD, the average bandwidth consumption is 1Mbps, if set to SD, the average bandwidth consumption is 512kbps.

How to modify device’s photo /name /channel name /password in mobile app?

There are two methods to modify device info from your account. First log in to your account in the app:

Method 1: Go to the preview page then click gear icon image.png at the top right corner. Then go to the device settings page and click the device image bar to reach the Device Info page. Click the corresponding options to modify.

Method 2: Click Me->My Device->select corresponding device ->click device image bar to reach Device info page -> click corresponding options to modify.

I have no access to my camera remotely.

(1) Please make sure your camera is connected to Internet.

(2) Please make sure your smartphone has Internet access. If not, please check the Wi-Fi or Mobile Network configuration of your smartphone.

(3) If your smartphone’s signal is too weak, maybe you’re not able to view your remote camera as well. If Internet speed is good but still cannot stream the camera, please contact our hotline.

I can see the camera under my device list, but when I try to live view it’s not streaming.

(1) Please check the light status of your camera,if it means your camera was connected to Internet.

(2) Please check the Internet access of your smartphone, if the signal is too weak or if you are on a highway, maybe the signal cannot handle the streaming.

(3) If you are not able to stream the video even when your smartphone is connected to the same Wi-Fi of your camera, maybe your camera’s Wi-Fi signal is too weak.

As Wi-Fi’s coverage always has its limitation, we have some suggestions:

(1) Please make sure there is not too much obstacle around your Wi-Fi router or camera, which may decrease the Wi-Fi signal.

(2) If your Router or camera has external antennas, please try to change the antennas’ direction, see whether the signal can be better.

(3) Try to put your camera at a new location where it has better signal.

(4) If your house is very big, and the place where you want to locate the camera is out of the Wi-Fi range, you can consider adding a range extender to extend the Wi-Fi coverage.

Working at night, the image is all black.

Reason:

(1) IR LED didn’t light up

(2) ICR didn’t switch to night mode

(3) Objects are too far away from the camera

Solution:

(1) If the IR LED did light up, but you cannot hear “KA” and the image is still all black, maybe there is something wrong with the ICR.

(2) For consumer cameras, the IR distance is less than 10m(differ between different models), so you cannot see too far away at night.

The camera disconnects frequently, the connection is not stable.

Reason:

(1) The camera is too far away from your Wi-Fi router/AP or there is too much obstacles between your router and camera, the signal is not very good.

(2) There is too many clients linked to your Wi-Fi which occupied too much bandwidth.

(3) There is too many Wi-Fi signals nearby, this will cause a lot of interference.

(4) The upload bandwidth is not enough.

Solution:

(1) Put your smartphone at the location of your camera, and check the Wi-Fi signal.

(2) Please check with your Internet service provider whether your bandwidth is enough, how about other applications in the same network? Is it also slow?

(3) Change the Wi-Fi channel of your router to decrease Wi-Fi interference.

ICR is changing between white/black mode and color mode all the time.

Reason:

In front of the lens there is something that can reflect the light. When it is getting dark, the IR LED will be turned on, then when the reflected light comes back it’ll trigger the camera to turn off the IR LED.

Solution:

Do not put something that can easily reflects light in front of the camera.

There is zebra stripe in the image, and the streaming is flashing slightly.

Reason:

There must be electric interference around. Maybe the power supply is not stable, P/N frequency of the firmware maybe didn’t fit the current frequency.

Solution:

Make sure there is no strong electricity interference around.

The image is not very clear.

Reason:

(1) The lens is damaged

(2) ICR or sensor is not very clean

(3) The lens focus is not good

Solution:

Check whether the lens is clean, whether it is damaged.

How to avoid audio noise?

Do not put device very close to mobile phone, PC or other digital products.

How to update device firmware?

Firstly login into your account in mobile app,go to preview page then click gear icon 1519633939383970USuQ.png on the top right corner, go to Device Info page,click Cloud Upgrade option to check if there is new firmware,if yes, you can update.

What are the smartphone system requirements for the Lechange app?

The Lechange app requires iOS 7.0 or above, or Android 4.0 or above.

Where to download the Lechange app?

(1) On iPhones, go to ‘app store’ and search for the “Lechange” app.

(2) On Android devices, go to Google ‘Play Store’ and search for “Lechange” app.

When power adapter is connected, the LED doesn’t light up; or the LED lights up but the device failed to boot up.

Reason:

(1) The power adapter does not work, voltage/currency of the power adapter does not fit the device.

(2) Electric circuit of the device has some issue.

Solution:

(1) Check whether the power adapter is the factory default one, and voltage/currency of the power adapter.

(2) Try another adapter, check whether the device can boot up.

(3) If confirmed the power adapter is ok but still failed to boot up, the device may be faulty.

LED has different status, what does it mean?

Different model has different meaning,please refer to exact model:

For cameras like Bullet:

 Indicator light status  Device status
 Red light stably on  Booting
 Green light slow flashing  Booting completed, await Wi-Fi configure, enter smart configure status;
 Green light quick flashing  WPS connecting,(The device is trying to connect to Wi-Fi via WPS)
 Green light stably on  Wi-Fi connection succeeded, operate normally
 Red and green lights flash alternately  Device upgrade
 Red light slow flashing  Network disconnection
 Red light quick flashing  Device fail to boot up; SD card does not work

For Cue cameras like Cue,Cue 1080P:

 Indicator light status  Device status
 Red light stably on  Booting
 Green light slow flashing  Booting completed, await Wi-Fi configure, enter smart configure status;
 Green light quick flashing  Wi-Fi smart configure in  progress, including WPS (Wi-Fi Protected Setup), management frame, etc.
 Green light stably on  Wi-Fi connection succeeded, operate normally.
 Red and green lights flash alternately  Device upgrade
 Red light slow flashing  Network disconnection
 Red light quick flashing  Device fail to boot up;SD card does not work

For PT cameras without Network interface like Ranger,Ranger 1080P:

 Indicator light status  Device status
 Red light stably on  Booting
 Green light slow flashing  Booting completed, await Wi-Fi configure, enter smart configure status;
 Green light quick flashing  Wi-Fi smart configure in  progress, including WPS (Wi-Fi Protected Setup), management frame, etc.
 Green light stably on  Wi-Fi connection succeeded, operate normally.
 Red and green lights flash alternately  Device upgrade
 Red light slow flashing  Network disconnection
 Red light quick flashing  Device fail to boot up; SD card does not work

For PT cameras with Network interface like Ranger Pro G:

 Indicator light status  Device status
 Spinning red  Booting
 Device malfunction
 Failed to boot up
 Spinning green  Booting completed
 Waiting for Wi-Fi configuration
 Flashing yellow  Wi-Fi connection progress
 Device has been configured with Wi-Fi, but it failed to work normally
 Flashing green  Pairing with alarm sensor
 Blue light stably on  Wi-Fi connection succeed
 Operate normally
 Flashing blue  Device upgrade
 Flashing red  SD card malfunction
 Pairing failed

Mobile APP Error Code Interpretation

 Error Code  Interpretation
 40001  User name or password wrong
 40003  Time stamp error,usually caused by wrong mobile phone time
 40004  Account login on other mobile phone
 40007  Illegal device serial number
 40009  Illegal device channel number
 40015  Encryption key check error
 40016  Package check failure
 40018  The MAC does not match the device serial number
 40101  Register failed, existed account
 40102  Register failed, illegal account
 40206  Device sharing limit
 40207  Sharing user does not exist
 50001  Operation unsupported

Why I receive the alarm notification without the ring tone?

The alarm notification ring tone is as same as ring tone mode of mobile phone notification. Please turn the mobile phone notification mode from “Mute” to “Sound”.

How can I view video recorded on an SD card?

Login into your Lechange account, go to the preview page then click “View history record”, and then select the recorded video you want to view from the calendar page.

I have inserted a Micro SD card, but there are still no video records?

(1) Check if the Micro SD card has been properly inserted into the slot.

(2) Pull down at the top of the Lechange app home page to refresh the device list.

(3) Check the Storage Status. If the memory card is “OFF”, click “Format Storage Device”. You will need to enter the device password. Once formatting is complete, the status will then change to “ON” and you can then start recording any event triggered video on the camera such as motion detection.

The camera cannot recognize the SD card.

Reason:

(1) SD card is not initialized

(2) SD card is faulty

(3) SD card slot is damaged

Solution:

(1) Insert the SD card into the SD card slot, format the SD card with Lechange app

(2) Try the SD card on PC/smartphone/other devices, check whether the SD card is damaged, if it is a bad SD card, please try another one

(3) RMA

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We encourage you to read the other information available in the privacy policy, including data retention periods and categories of data recipients. If you have any questions, we are at your disposal at the address: DH_Privacy@dahuatech.com