PS5 Controller Blinking Blue & Not Syncing; How do I resync it?

A PS5 controller will blink blue when there is a syncing problem between the console and the controller. The Router’s band interference with the wireless signals of the controller or an outdated firmware of the controller can cause issues in the connection.

There are instances where the controller starts to blink blue but will still work, while in other cases, the controller stops working. In some cases, the controller switches off after flashing blue for some time.

Before starting the troubleshooting process,

• Connect the PS5 console directly without a surge protector or extension cable to a new power source.
• Unplug any other devices such as any USB dongle from the console and restart it. 

1. Restart the PS Console

The PS5 controller will keep on blinking blue if it is failing to sync with the console. This might have occurred if the input modules of the console are in an error state. Restarting the PS console will solve the problem as it will reinitialize all the modules.

Put in the Rest Mode

1. Press the power button of the console to put it into the rest mode.
2. Wake up the console from the reset mode and check if the controller issue is resolved.
3. If the problem persists, put the console in rest mode again but this time, wake it up by pressing the PS button.

Force Restart the PS5

1. If the issue persists, press and hold the power button of the console till it beeps. This force restarts the console completely. 
2. Upon restart, check if the controller is working.

   

Perform a Cold Restart of the PS5

1. If the problem continues, power off the console and unplug its power cable.
2. Wait for a minute and plug back the power cable.
3. Power on the console and check if the controller’s blinking blue problem is cleared.

Boot the PS5 into the Safe Mode

1. If none of the above work, press and hold the power button till it beeps twice (after 7 seconds).
2. Click Restart PS5 at the top and check if the blinking issue is resolved.
3. If the issue persists, press and hold the power button till it beeps thrice. There may be long pauses between the beeps.
4. Upon restart, check if the controller issue is resolved. You can afterward boot the console in the normal mode. 

2. Update the Firmware of the Controller and Console

A PS5 console or controller with outdated firmware will not be compatible with its counterpart and thus can cause issues. Moreover, a bug can also cause the blue blinking on the controller. In both cases, updating the firmware of the console and controller will solve the problem.

Update PS5 Console

1. Launch the PS5 Settings and go to System > System Software > System Software Update and Settings.

   

2. If updates are available, install the updates and restart the console. Check if the controller’s blinking blue problem is solved.

   

Update Controller

1. Disable Bluetooth on the PS5 and use the genuine USB cable to connect the controller to the console.
2. Check if the controller is detected. If so, install a firmware update of the controller (if available).  
3. Unplug the controller and check if its blinking issue is cleared. You may need to set controller communication to USB Cable (not Bluetooth) in the PS5 settings.

   

4. If there was no firmware update, launch a browser on a Windows PC and download the official Firmware Updater for DualSense Wireless Controller.
5. Launch the Firmware Updater installer as an administrator and follow the prompts to complete the installation. It may download some additional software applications.
6. Open the Firmware Updater as an administrator and connect the PS5 controller to the PC by using the genuine USB cable.
7. Follow the on-screen instructions to update the firmware and make sure not to turn off the PC during the process or the controller gets disconnected from the PC.
8. Once the update completes, click OK and close the Firmware Updater.
9. Disconnect the controller from the PC and switch off the PS5 console.
10. Connect the controller to the PS5 and power on the console. Check if the blinking issue is cleared.

3. Re-add the Controller to the PS5 Console

The PS5 controller will blink blue due to a syncing problem between the console and the controller. This might have occurred due to the controller’s wrong profile in the PS5 settings. In such a case, re-adding the controller to the PS5 console will solve the problem.

You will need another controller to complete these steps or use the PS Remote Play app.  

1. Launch the PS5 Settings and go to Accessories > General > Bluetooth Accessories.

   

2. Under Registered Accessories, select the problematic controller, and in the menu shown, click on Delete.
3. Restart the console and simultaneously press the following buttons on the problematic controller:

   PS 
   
   Share button (the button with three lines)

4. The controller will start flashing and will be shown under Registered Accessories of the PS5 Settings.
5. Select it by using the other controller and click on Connect. See if the blinking issue is cleared.
6. If this does not work, install the PS Remote Play app on your phone and launch it.
7. Connect it to the console and restart the console. Check if the problem is solved.

4. Change the Router Band

If the router is using a band that is interfering with the controller’s signals, the controller will fail to sync with the console and thus will blink blue. Here, changing the router’s band will solve the problem.

1. Go to the admin portal of your router in an app or browser and navigate to Settings > Wireless Settings.
2. Disable 5 GHz and enable 2.4 GHz.

   

3. Restart the router after saving the changes and connect the console to the 2.4 GHz band of the router. Check if the PS5’s controller issue is resolved.
4. If this does not work and you have a 5G device close to the console, either switch off the device or change it to 4G. See if that clears the blinking problem.
5. If the issue persists, disable Wi-Fi on the console and use a LAN cable to connect the console to the Internet. Verify if the controller is clear of the blue blinking.
6. If the problem is still there and you have or can arrange another router, change the router and check if that solves the problem. If so, then the router is incompatible with the controller and you may need a new compatible router.

5. Reset the Controller and PS5 Console to the Factory Defaults

You will face a blinking blue PS5 controller if the firmware of the controller or console is no more valid. This can make the console and controller incompatible with each other. To solve this, reset the controller and PS5 console to the factory defaults.

Reset the Controller

1. Locate the reset button on the backup of the controller and use a pointy object (such as a toothpick, paper clip, or SIM card ejector) to press/hold the reset button for 10 seconds.

   

2. Release the button and pair back the controller with the console. See if it is working correctly.

Reset the Console or Reinstall its System Software

In some cases, you may need to boot the console in the safe mode to complete the steps below.

Reset to Default Settings

1. Launch the Settings of the PS5 console and go to System Software > Reset Options.
2. Select Restore Default Settings and wait till the process completes.
3. Once done, pair the controller with the console and check if the issue is resolved.

Reset Console

1. If the above does not work, go to Reset Options on the PS5 and select Reset Your Console.

   

2. Wait till the process completes and then set up the console as per your requirements.
3. Pair the controller with the console and see if its blinking issue is resolved.

Reinstall the System Software on the PS5 Console

1. Grab a USB and format it in exFAT or FAT32 format on a PC or Mac.
2. Create a folder PS5 in the USB and open the folder.
3. Create another folder UPDATE inside the PS5 folder.
4. Open the official PS5 System Software Update page in a web browser and click on Reinstall System Software.
5. Download the PS5 Console Reinstallation File and copy it to the UPDATE folder (created in step 3).

   

6. Rename the file as PS5UPDATE.PUP and safely eject the USB from the console.
7. Plug the USB into the PS5 console and power off the console.
8. Press and hold the power button till the console beeps twice. This will boot the console in safe mode.
9. Select the option of Reset PS5 (Reinstall System Software) and wait till the process completes.

   

10. Once done, set up the console and hopefully, the controller’s blue blinking issue would be resolved.

If none of the above worked, you may contact Sony Support and get the controller or console checked for a hardware error. If under warranty, you may claim a replacement for the faulty device.