Razer Synapse 4

i want to test signalrgb for some time and also keep synapse running. how can i remove light control from synapse ?

For a while now Razer Synapse 4 was working great and I had no issues with it but today I opened it and it started to crash over and over a few seconds after opening - at one point it looked like it was going to try to install an update but then it said installation failed and crashed. I tried restarting my laptop and also uninstalling synapse and going to the website to download the latest version of the installer and reinstalling it but this also failed. I am running on a razer blade 18 (2024) with rtx4090 and intel core i9 14900hx on windows 11 latest udate

Are there any plans for Synapse 4 or 3 to be ported to Mac OS? I am planning on buying another Razer mouse and keyboard to be used with my MacBook but the lack of synapse is something that worries me.

Linked Games and Auto Profile Switch no longer works after an Synapse Update (Jan 2026), profile switch doesn't affect the apps i'm using. i did a clean install to the software, the linked games now takes forever to scan games and i can't even add programs to it.

The latest Synapse update (I had one yesterday I think) disabled the automatic profile switch for some applications. The profiles do not switch automatically for Google Chrome or VSCode, but they do work for others like Visual Studio or some games.I tried everything that was suggested in some support threads regarding the faulty profiles switch (there are lots of them apparently, meaning Synapse is quite buggy).Razer, please debug the latest release or give me a link to an older version of Synapse 4.

Hi everyone,My device: Razer Blade 18 (2024) – Intel i9-14900HX / RTX 4080 / Windows 11 Home I’m having an issue where Razer Synapse doesn’t start automatically with Windows, or if it does, it launches very late after the system boots. Until Synapse finally loads, my keyboard shows random lighting effects instead of my saved Chroma profile. Here’s what I’ve already tried (without success): Enabled “Start Razer Synapse on system startup” in the settings. Checked Task Manager → Startup tab (Synapse is enabled). Made a custom Task Scheduler entry to start Synapse at login (with and without delay). Set Synapse to run as administrator. Verified that Razer Synapse Service and Razer Central Service are set to “Automatic” and running. Reinstalled Synapse completely (including deleting leftover Razer folders from AppData and Program Files). Despite all this, Sy

Hi, I would like to create a macro (or an other way if possible) to have shift + scroll click pressed down as long as I am pressing the mouse button that is assigned this macro. I would use this to pan around in blender and other 3D programs. But at the moment I am only able to have this key combo loop (shift down - scroll click down - shift up - scroll click up looping constantly) when keeping the button pressed, which results in stuttery behavior. Is this at all possible to do this? Sincerely I have a Naga 2 Pro mouse

Hi,yesterdays I shutdown my computer and an error happened related to Razer Synapse.Now the program won’t start.Tried unistalling and re-installing. Error remains.

I’m here simply to advocate for Linux support. I have 3 Razer devices, headphones, keyboard and mouse and they struggle to work with Linux. Us Linux users should not have to settle for third part software like OpenRazer. While I respect their work it should not be on them to have to make these tools. We paid money for our devices, we expect support on Linux. 

Hi.I’m inviting all to conversation about never ending list of bugs in Synapse 4.Let’s open beers or more voltage alcohole like Razer DEV team and chat about issues with this app if we can call it an app.So last time I spent more time on Synapse 4 fighting with lights and synchronization with MSI app and gear than on playing or doing something more productive. What I learned is that application working like trowing a dice, each clean installation generate different problem :) fixing one but giving you new one.From what I notice there a 4 common issues:   Chroma app stopped turning on automatically with the system after login to windows account (to make lights on you need to turn on manually the Chroma app) Sometimes there is an issue where you can’t add games to Synapse 4 I notice also when you have set profile with lights for some specific game keyboard (huntsman elite in my cas

Hi,I have a suggestion regarding the Razer Synapse software concerning macros.It would be great if we could add an action to switch the DPI directly in a macro (to decrease or increase the DPI level relative to the DPI levels set in the mouse settings).This is a feature I appreciate on my Logitech mice, and I would love to have the same feature on my Razer mice.Thank you for your support.

Razer please bless us with the ability to switch DPI with macros

How do i get my left click to work as intended? i cant get my left click to work, no matter what i sign it too. why cant it be simpel as other mouse’s. its stupid to not be able to use left click without anny fuss.

I need help with an issue that just started recently: I have the Tartarus Pro.I map my dpad/joystick button, usually to numbers on my keyboard (1 through 4 in this example)I also change a few of the keys on the keyboard portion. (Caps gets changed to CTRL, C gets changed to ALT, and the keybind switch button gets changed to M).For some reason, I’ll map the dpad to those numbers listed above and as soon as I map one of the other keyboard keys its like the profile forgets. It shows up in Synapse 4 as remaped correctly but it doesn't work. The keyboard remaps (CTRL, ALT, M) work correctly but the dpad just defaults even though they show remapped in Synapse 4. Any suggestions? I have reinstalled Synapse 4, factory reset etc.

This should not happen, but I have found that the beta version of the bugged mess known as Synapse 4 is actually more stable than the released version. It is still a bugged mess, and with no way of going back to Synapse 3, it is the best of a bad choice. After performing a clean install of Synapse 4 released version, it has frequently crashed, and had to be restarted.  This on every computing session, without fail.  To see what is being selected, I have Synapse open at all times.  When it disappears, I know that it has crashed. The beta version has not once crashed.  It has other annoying habits, such as not recognising when I am using a web browser, or Microsoft OneNote.  However that is also present in the released version. Quite honestly, I do not understand their rationale of restricting Synapse to only recognising certain programs.  It will cost them sales.

Hi,Have an issue where my mouse's (Naga) extra buttons get pressed continuously until it's disconnected from my computer, then after that, the whole auto profile switching goes out the windows, this is all happening after the latest update. This is across multiple devices, as on my Firefly V2 Pro, if mouse gets plugged into the mousepad USB port, it starts to work intermittently when it was fine a week ago.Can we get a fix for this and a way to stop future updates?Thanks in advance.

Hello! Is synchronisation between Nanoleaf and Synapse 4 currently available? I keep getting an error message. Has anyone else encountered this? 

Hi, i am unable to disable auto-updates. In the old razer snypase, there was a setting for me to disable this, however, in this new razer synapse 4, I am unable to do so. When I open the settings, there is no option for me to disable auto updates. I have attached a screenshot below  

Hello,I got tired of trying to figure out stuff on my own, since everywhere I look seems to say the same things about the horrible synapse software. I tried the 4 but had profile syncing issues right out of the box (brand new peripherals and installation), went back to synapse 3 since everyone said to do so (macros where disappearing left and right, I had to export the profile and re-import every time it did...), and now I’m back on the 4 which seems to have fixed the syncing issues, but now adding other issues...I need answers to my issues.When remapping Function keys to my Naga’s side buttons. Not macros, only the basic function you could ask from this software… I have noticed that it will work for a while, but the more you use them the more delays it will create between the button press and the actual action in game. It was particularly evident when using a cursor movement macro. The macro would start and move the cursor very fast until the move

Hello, after installing Razer Synapse 4 and uninstalling Synapse 3, I encountered an issue where the Chroma profile does not switch to the one set in the Linked Games tab/module when launching a game. Have someone else encountered this problem or is that just me? And do you have solution for it?Thanks! 

I just cannot fight version 4 anymore, its absolute trash. Went back to 3 and will deal with any issues after Jan. 20th 2026 or just replace all my gear.

I’ve already sent this to support but I thought I’ll put this here too.This is an issue I have only on Synapse4.Basically, when ever I cycle keymap(I use 1 as main and 2 for some obscure shortcuts) and use it, Synapse can randomly overwrite the 2nd keymap with the mapping of 1st’s.Here’s a video of me reproducing this issue by spamming keys while cycling, but this has happened multiple times when I’m using Tautarus normally and I don’t spam keys.My temporary solution for this is to dupe the preset so I can switch to it when it happens, delete the original and dupe the dupe for next time...

fresh install time. synapse says i need to update firmware for my nommo v2’s. i make it to the page that says “push he power button, make sure the light is green,” which its on, but the “update” button is dim and unclickable.