MC4021(EU)_V1_1.2.2 Build 260526(Multi-language)
2026-07-15
Modifications and Bug Fixes:
1. Enhanced live view, playback, and two-way audio experience.
2. Enhanced motion tracking and event notification responsiveness.
3. Optimized Wi-Fi connection and network recovery reliability.
4. Improved SD card recording management and playback compatibility.
5. Improved cloud connection stability.
6. Enhanced device security and system stability.
MC4021(EU)_V1_1.1.5 Build 260306(Multi-language)
2026-05-26
Modifications and Bug Fixes:
Enhanced device security.
- How to find the Model number, Serial number and Hardware version on a MERCUSYS device
- How do I delete my MERCUSYS account?
- What can I do if I forget my password of MERCUSYS account (MERCUSYS ID)?
- Why does MERCUSYS require my email address?
- How to collect system log of MERCUSYS App
- What can I do if I can’t find my Mercusys camera on Mercusys APP?
- What should I do if I fail to configure MERCUSYS camera?
- What should I do if my MERCUSYS camera keeps losing connection or going offline?
- What should I do if the firmware update of my MERCUSYS Camera fails?
- What to do if the Mercusys camera image color is abnormal
- Why can’t I receive notifications after turning on Notifications?
- Detection is not working on the Mercusys camera
- How to configure the Alarm feature for the Mercusys Cameras on the Mercusys app
- How to do Pan & Tilt Correction on Mercusys cameras
- How to set the detection zone for your Mercusys Camera
- What should I do if the video image is upside down on my Mercusys Camera?
- How to set privacy zones for MERCUSYS Camera
- How to use the Privacy Mode of MERCUSYS cameras
- Why can't I view the live stream of MERCUSYS camera continuously?
- How can I subscribe to a Camera Care plan?
- How can I conduct 3DS authentication when purchasing Camera Care?
- How to connect my MERCUSYS camera to Google Home
- How to use Amazon Frustration-Free Setup with MERCUSYS camera
- How to make my MERCUSYS camera work with Amazon Alexa
- How to verify fake Micro SD cards
- How to view MERCUSYS camera on PC/NAS/NVR through RTSP/Onvif protocol
- How to configure MERCUSYS devices to work with Samsung SmartThings
- How to share my MERCUSYS Smart Devices with family
- How to use the Detection function of MERCUSYS cameras
- How to use Siri to control MERCUSYS smart devices
- What type of microSD card does MERCUSYS Camera support?
- General questions about Camera Care
- How to add new cameras to my Camera Care plan
- How can I view continuous recordings of MERCUSYS cameras in MERCUSYS app
- How can I view the video recordings of camera from the SD card on a computer?
- How to save and download videos from MERCUSYS devices
- What should I do if the SD card doesn’t work properly on my camera?
- Where can I find detection recordings of the cameras on the MERCUSYS app?
- Cannot make MERCUSYS camera work with Google Home
- Cannot use Mercusys app to control my cameras
- How to avoid noise when monitoring the sound from MERCUSYS camera
- How to check and improve the network connection stability of MERCUSYS camera
- How to configure the Notification feature for the MERCUSYS Camera on the MERCUSYS app
- How to edit Home and Away Mode for MERCUSYS Cameras on the MERCUSYS app
- How to get the log of MERCUSYS Camera
- How to manage camera account on the MERCUSYS app
- How to protect MERCUSYS Camera from being stolen
- How to turn on Precise Location for the MERCUSYS app
- What should I do if I can't view the MERCUSYS camera?
- Why do I need to give local access permission to MERCUSYS app in iOS 14?
- How can I change the device name, device icon and location in MERCUSYS app for my smart cameras
- How can I find the IP address of my MERCUSYS camera
- How to remove my MERCUSYS camera when it is offline
- How to reset my MERCUSYS camera
- How to position my MERCUSYS camera for optimal performance
- How to set up Patrol Mode on MERCUSYS cameras
- How to update firmware of MERCUSYS cameras in MERCUSYS app
- What’s the Pano feature on the MERCUSYS camera and how to use it
- Simultaneous Camera Viewing on the MERCUSYS app
- How to install an SD card for my MERCUSYS camera
- How do I turn on or off activity notifications on my mobile device?
- How to mount Your MERCUSYS Pan & Tilt Camera to a wall
- How can I get the invoice for my Camera Care subscription?
- Camera Care Cancellation and Refund
- Information related to the Camera Care free trial
- How to control MERCUSYS camera by Google Home with voice commands
- How to control MERCUSYS camera via Amazon Alexa with voice commands
- How to use the Alexa Announcement feature of the MERCUSYS Camera
- Getting to know your MERCUSYS App
- How to configure UPnP on my MERCUSYS camera for better video streaming
- How to change the password of my MERCUSYS account (MERCUSYS ID)
- How to set up the MERCUSYS camera
- How to re-register the MERCUSYS camera to another account (MERCUSYS ID)
- What should I do if my MERCUSYS camera won’t power on or the LED behaves abnormally?
- How to use the Pan & Tilt function of the MERCUSYS cameras on the MERCUSYS App
- MERCUSY camera is showing offline after changing or resetting the router.
- How to improve the motion tracking effect of my camera
- How to improve video clarity and quality of MERCUSYS Camera
- How to stream MERCUSYS Camera on Google device
- What should I do if I encounter issues while playing back videos from an SD card?
- Why do I receive a "We Noticed a New Login" email?
- How to add the MERCUSYS app to the allowed list to allow interruptions during Do Not Disturb
- What should I do if MERCUSYS notifications are delayed or not working?
- How to configure the spotlight of MERCUSYS Camera
- How to set a static IP for your MERCUSYS Camera
- How to fix a flickering issue on Live View of the MERCUSYS Camera
- How to adjust Image Style and Image Brightness on MERCUSYS Camera
- What is Video Summary?
- What can I do if my Pan & Tilt Camera rotates automatically?
- General questions about Pan & Tilt feature of MERCUSYS Camera
- How to use Alexa Snapshot with MERCUSYS Camera
- How to troubleshoot Smart Camera Tampering Detection issues
- How to set up routines for MERCUSYS devices via Alexa app
- Cannot make my MERCUSYS cameras work with Alexa
- What can I do if my MERCUSYS camera frequently stucks or reboots?