Synapse 4 Devices Not Detected on Startup | Razer Insider
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Synapse 4 Devices Not Detected on Startup

  • August 8, 2025
  • 86 replies
  • 4095 views
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86 Replies

E
  • emp68
  • Insider Mini
  • August 10, 2025

 

...

Every single time—every single day—it’s the same thing: “Thank you for providing the details. To proceed, please share the additional information below.”

[..}

See my answer above, it’s all systematic (ITIL).

Does this really seem systematic to you??? This kind of repetition is not how ITIL is supposed to work


Yep, it’s annoying, tedious and not really how ITIL is supposed to work. Some companies pervert these processes to the point of exhaustion, leaving behind annoyed and frustrated customers.

OndrejRichter
  • OndrejRichter
  • Insider Mini
  • August 10, 2025

I believe Razer fixed it. Mine is working 

Yes, problem is solved on version 4.0.86.2508050339.

Mattzzka
  • Mattzzka
  • Insider Mini
  • August 10, 2025

I believe Razer fixed it. Mine is working 

Yes, problem is solved on version 4.0.86.2508050339.

 

I don’t think so & what is your device, please ?

Mattzzka
  • Mattzzka
  • Insider Mini
  • August 10, 2025

I believe Razer fixed it. Mine is working 

 

What is your version of the software & device please ?

XatheX
  • XatheX
  • Insider Mini
  • August 11, 2025

I found a fix that works for now BUT it requires modifying the registry… proceed at your own risk 

  1. Open regedit as administrator and navigate to the following location: Computer\HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
  2. there should be an entry for “RazerAppEngine” with a string like [ "C:\Program Files\Razer\RazerAppEngine\RazerAppEngine.exe" --url-params=apps=synapse --launch-force-hidden=synapse --autoStart=1 ]
  3. Create a NEW string in this location call it RazerFix
  4. Enter the string [ "C:\Program Files\Razer\RazerAppEngine\RazerAppEngine.exe" --url-params=apps=synapse --launch-force-hidden=synapse ] (no brackets[])
  5. Open Synapse go to settings and turn OFF run at startup completely, the new string will do it for you 
  6. restart and see if it worked

If this doesn’t work for you you can just delete the key you created and no harm will be done.

I don’t really know why this works but I suspect the “--autoStart=1” stops synapse from loading properly.

I hope this helps!

 

Back again… I reverted my change and it looks like there was some sort of “hotfix” and it now works without the custom registry entry.  I think all the noise made something happen!

Stalkerlp
  • Stalkerlp
  • Insider Mini
  • August 11, 2025

razer is not send update. this number is same 

I took a screenshot of the same issue as before. However, strangely, I used the regedit script the above friend gave me and it worked perfectly.

Then I checked again, and there were two sides: the original and the Razerfix one.

When I looked later, the original one was gone. So, as a test, I deleted the fix one and left it blank. I restarted the PC, and voila.

It fixed itself. Now I look at regedit, and the original code is still there, and it detects the devices every time I boot. Very strange.

Mattzzka
  • Mattzzka
  • Insider Mini
  • August 11, 2025

I found a fix that works for now BUT it requires modifying the registry… proceed at your own risk 

  1. Open regedit as administrator and navigate to the following location: Computer\HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
  2. there should be an entry for “RazerAppEngine” with a string like [ "C:\Program Files\Razer\RazerAppEngine\RazerAppEngine.exe" --url-params=apps=synapse --launch-force-hidden=synapse --autoStart=1 ]
  3. Create a NEW string in this location call it RazerFix
  4. Enter the string [ "C:\Program Files\Razer\RazerAppEngine\RazerAppEngine.exe" --url-params=apps=synapse --launch-force-hidden=synapse ] (no brackets[])
  5. Open Synapse go to settings and turn OFF run at startup completely, the new string will do it for you 
  6. restart and see if it worked

If this doesn’t work for you you can just delete the key you created and no harm will be done.

I don’t really know why this works but I suspect the “--autoStart=1” stops synapse from loading properly.

I hope this helps!

 

Back again… I reverted my change and it looks like there was some sort of “hotfix” and it now works without the custom registry entry.  I think all the noise made something happen!


What do you mean sorry ? They fix it ?

Stirick
  • Stirick
  • Insider Mini
  • August 11, 2025

Its not fixed there’s nothing officialy posted that I can see yet.

If there is someone plaese link it for all of us 

 

Mattzzka
  • Mattzzka
  • Insider Mini
  • August 11, 2025

Its not fixed there’s nothing officialy posted that I can see yet.

If there is someone plaese link it for all of us 

 

As far as concerning myself i installed synapse 4 when the device isn’t detecting this afternoon afterward i was back on synapse 3 until his message XatheX which I decided to installing synapse 4 again and the problem is fixing maybe a hotfix so

 

We can see the update logs on Synapse 3 when there’s an update which isn't the case anymore i feel on synapse 4, which I don’t really know why

Stirick
  • Stirick
  • Insider Mini
  • August 11, 2025

Synapse 3 unfortunately is total cancer the way it ENFORCES audio choices.

All seems to be working fine for me after I removed the fix today .

Razer.sushi.boi

Hello there guys!

 

Thanks for alerting us about this and this issue is already being resolved. Please send me a message via PM along with your existing case number so I can check what transpired with our Support Team and make necessary follow-ups. Do include your Synapse 4 and Chroma version as well for proper documentation. Looking forward to your response!

 

*Thread locked to curb conversation to PM.

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