Blink Sync Module Flashing Green Light (Fix it in Seconds)

Marc Ray

by Marc Ray

Last Updated on

Blink Sync Module Flashing Green Light (Fix it in Seconds)

Quick Fix

The flashing green light on the Blink sync module indicates an unstable connection to your home’s wireless network. To resolve this issue, you can either connect the module to a more stable network or delete it from the app and add it again.

The Blink Sync Module is an integral component of your home security system, bridging your Blink cameras with cloud services for real-time security monitoring.

Understanding how to quickly fix issues like the flashing green light can ensure uninterrupted protection for your home.

In this guide, I will tell you how you can fix the Blink Sync Module flashing green light issue and get your devices back online.

Troubleshooting Blink Sync Module Flashing Green Light

Addressing the Blink Sync Module flashing green light issue is paramount for optimal device performance.

A flashing green light on your Blink sync module indicates a problem with the module’s internet connection, possibly due to a poor network signal or a network conflict.

Ignoring this issue could result in losing connection to the cloud servers and further communication problems with the other Blink devices.

The only way to ensure that the security system continues to operate smoothly is to perform the necessary troubleshooting steps as soon as feasible.

Before getting to the troubleshooting, please allow me to explain what the sync module’s status light means and how to interpret it.

Blink Sync Module LED Status Explained

LED status Indications of Blink Sync Module

The Blink devices use LED indicators to provide a status update on what’s going on with the cameras and sync module.

Here are all the status light indications on the sync module:

  • 🟢 Solid Green: A solid green light on the camera indicates it is connected to its local network, and everything works fine.
  • Flashing Green: If the green LED starts flashing, the module is connected to the network, but the internet is not working.
  • 🔴 Red Light: A red or no blue light on the front of the Sync Module indicates that the sync module is offline.

These LED indications help users diagnose device issues and take appropriate troubleshooting steps to resolve them.

Causes of Blink Sync Module’s Blinking Green Light

Alternative Causes of Sync Module's Blinking Green Light

One common reason is a network connectivity issue, either with the Sync Module itself or with the WiFi network it is trying to connect to. It could be due to a weak signal or interference from other devices.

Another potential cause is an issue with the Blink servers, which can prevent the Sync Module from properly communicating with the cloud.

Hardware problems such as a faulty power supply or damaged cables can also cause the green light to flash.

Identifying the root cause of the problem is essential to implement the appropriate solution. With that said, let’s get to the solutions.

1. Check Local Network Status

As I have mentioned earlier, the Blinking green light and solid blue light on the sync module indicate that the module is connected to your home’s local network, but the internet is not working.

So, you start by investigating the internet connection. Follow these steps to fix your local network:

Ensure your WiFi internet is working correctly.
  • Ensure your WiFi internet is working correctly. Try browsing on other devices, such as your phone, and ensure the internet on your phone is working smoothly.
  • Run a speed test on your phone while connected to the same network as your sync module, and ensure your internet speed is good. You can run the speed test using the Ookla application on Android and iOS.
  • Ensure you are not using a VPN directly on your wireless router, as it can also disrupt the latency and prevent other devices from running smoothly on the local network.
  • Also, make sure the wireless router is close to the sync module so the signal strength is good enough.

All these tests will help you understand the real-time status of your local network and will also help you establish a smooth connection between your router and the sync module.

You may have to refresh your network if you find any abnormality during these tests.

2. Power Cycling Your Router or Modem

Power cycling, also known as a ‘Soft Reset,’ effectively clears any temporary glitches in your router’s firmware. This simple action can re-establish a stable connection with your Blink Sync Module.

Power cycling the Router or Modem

With that said, let’s power cycle your modem and router. Follow these steps:

  1. Power off your modem and router, and remove the cables from the power source.
  2. Please wait for 30 seconds minimum before plugging them back in.
  3. While the router and modem are unplugged, press and hold the power button for 15 seconds. It will remove all the static charges piled up on the internal components.
  4. After 30 seconds, plug them back into the power socket and turn them on.

Once the modem and router are powered on, see if the blinking green light is stable or not. If it is solid green, it is good for you, but if not, perform the power cycle on the sync module as well.

3. Power Cycling the Sync Module

As you know, the sync module is powered on almost 24/7, so it gets overheated, which can cause numerous issues and affect its daily functions and operations.

As a piece of electrical equipment, it is subject to the wear and tear that comes with constant use, which might manifest as a blinking green light.

So, the solution is to conduct the power cycle process. Just like you have performed the power cycling technique on your router/modem, you can also perform it on the sync module.

Power cycling the Sync Module: Simply unplug the power cord from the back of the unit for 30 seconds. After waiting, plug it back into the power outlet and power it ON.
  1. Unplug the power cord from the back of the unit for 30 seconds.
  2. After waiting, plug it back into the power outlet and power it ON.

It will cause the device to reboot and reconnect, displaying a solid blue and solid green light or solid blue and blinking green when ready for setup.

If power cycling doesn’t bring your Sync Module back online, try to factory reset it.

4. Factory Reset the Sync Module

A factory reset may be necessary if you’ve exhausted all other troubleshooting options and still experience Blink Sync Module flashing green light.

Important: Factory resetting will erase all the settings and data inside your sync module memory, so you must set it up from the start.

Factory resetting can also resolve many other issues related to the Blink security system, such as Blink cameras flashing red lights.

Follow these steps to factory reset your Blink Sync module:

  1. On Sync module 2, you can find the “Factory Reset Button” on the back of your sync module. On the original model, it is located close to the USB port.
  2. Press the button using a small object like a hairpin or a SIM ejector tool. You can also use your fingernails.
  3. Press and hold the reset button for 5-10 seconds un you see a flashing red light. It will start the reset process, which takes around 15 seconds.
  4. Then, the LED lights will turn solid green and blinking blue, indicating that you have successfully reset the Sync Module and it is ready to pair with your Blink app.

After performing the factory reset, you must configure the sync module from the mobile app again.

5. Switching Sync Module to a Different Network

Sometimes, while you face an unstable green light on your Blink sync module, you will also receive a notification on your phone saying, “Sync Module Offline.”

And when you open the app, you will see the same error on top of the screen! Well, you can easily and quickly fix this issue by switching to a different WiFi network.

Follow these steps to change the network on your sync module:

  1. Ensure your mobile is connected to the new WiFi network from which you want to connect your sync module.
  2. Go to the Blink mobile app and tap “Settings” in the bottom right corner.
  3. Tap on “Devices and System Settings.”
  1. Now tap on the “Systems” where the malfunctioned sync module belongs. In my case, it was the Downstairs system.
  1. Tap on “Sync Module.”
  1. Select “Change Wi-Fi Network.”
  1. Press and hold the “Hard Reset button” until you see a red light on your sync module.
  1. Wait for the “Blinking blue light” and “Solid Green Light” on your sync module, and once it does, tap on “Discover Devices.”
  1. Tap “Join” and choose a 2.4 GHz WiFi network.
  1. Input the Wi-Fi password and tap “Join.”
  2. That is it! You will receive a message, “Sync Module added to the system.” When you see that prompt, tap “Done.”

Following all these steps, you will successfully change the network on your sync module, and hopefully, it will fix the blinking green light issue.

6. Re-add Sync Module to Network

Another solution to fix the blinking green light on the Blink sync module is to delete the module from the app and add it again. It is a tried and testified solution by many Reddit users.

Performing this solution is quite time-consuming because after deleting the sync module, you have to start again with your Blink smart security system.

So, I prefer it to be the last resort if nothing has solved the issue until now!

Follow these steps to delete the sync module from your Blink account:

  1. Open the Blink mobile app.
  2. Tap on “Settings” in the bottom right corner and Go to “Devices and System Settings.”
  1. Now tap on the “Systems” where the malfunctioned sync module belongs. In my case, it was the Downstairs system.
  1. Select “Sync Module.”
  1. Tap “Delete Sync Module.”
  1. Scan the QR code on the back of your sync module or enter the Serial number manually.
  1. A pop will appear asking for confirmation; select “Delete.”

The sync module is deleted from your account and is ready to be added again.

But before adding it back to the app, I recommend performing a hard reset one last time. Press and hold the reset button for a few seconds, and wait for it to restart.

Once it restarts, you can proceed to add it back inside your Blink account by following these simple steps (with images):

  1. From the home of the Blink app, tap the “+” icon in the top right corner of the app to add a new device.
  1. Tap on “Sync Module.”
  1. Scan the QR code from the back of the sync module.
  1. Type a name for this new system.
  1. Wait for the “blinking blue” and “steady green light.
Wait for the solid Green light and blinking Blue light on the sync module.
  1. Tap on “Discover Devices.”
  1. Tap “Join” to temporarily join a network, select your preferred 2.4 GHz network, enter the Wi-Fi password, and tap “Join.”
  1. Tap “Done” to complete the adding procedure.

That’s it; the sync module will be accessible online through your Blink account. The next step is to connect the cameras to the sync module.

7. Additional Blink Sync Troubleshooting

If nothing has resolved your Sync Module blinking green issue, here are additional troubleshooting steps you can try:

  1. Check if other devices in the network are experiencing connectivity issues.
  2. Try resetting your WiFi network password and reconnecting the sync module using the new password.
  3. Check if your router’s firmware is up to date.
  4. Disable any firewalls or antivirus programs that may be blocking the Sync Module’s connection.
  5. Ensure that the Mac Filtration feature on your router is disabled.

Contact Blink customer support for further assistance. Regular maintenance and troubleshooting are important for optimal device performance, so don’t hesitate to ask for help.

Concluding Thoughts on Blink Sync Module Flashing Green Light Issue

In conclusion, you can resolve the Blink sync module flashing green light issue by performing simple troubleshooting steps such as power cycling the router and sync module and factory resetting the Sync Module.

Maintaining and troubleshooting your devices is essential to ensure optimal performance regularly. You can contact Blink support for further assistance if all else fails.

Remember to always check the LED indications on your Blink devices to diagnose any issues.

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Frequently Asked Questions (FAQs)

What is the difference between the Blink module Red Light and Flashing Green Light?

When the sync module shows a flashing green light, it indicates it is connected to the WiFi network but has no internet. On the other hand, red light means that the module is not connected to any WiFi network.

Why is my Blink sync module Blue Light Blinking?

The blinking blue light indicates weak WiFi signals, so put the sync module to a close location, and you are good to go.

How to Fix Blink Sync Module Offline Blinking Green Light?

If your sync module is offline and blinking a green light, you must delete it from the app and add it again to fix this issue.

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About the author

Marc Ray

Marc Ray

Marc Ray, Founder of A tech enthusiast & expert in smart home technology, helping homeowners upgrade their homes with the latest smart home security & automation solutions. Marc has over 10 years of experience in smart home technology. He holds a certification in Home Automation Systems and has been featured in Hubspot. You can learn more about Marc and his work. Read his Book, Smart Home Hacks!

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