Synapse - unable to set keybinding

So tried to fix it via Synapse beta , synapse beta does not migrate profile (uff.. )
So tried back Synapse 3 - luckily have back profile 
Still enable to set up things on my keymap , somehow still valid for some keys. 

I had one with double functionality, sucesfully remove that. but still - at the same keymap cannot re-bind other keys

GOOD LUCK.

I had this issue and it was never fixed, then their tech support gave me instructions that ended up wiping out dozens of macros that took months to polish. Even after I voiced a concern that exact thing was going to happen!

Ended up having to go to beta and start all over again. And now I am having issues with macros not functioning the same when it comes to key holds, and nobody has been helping.

Same issue. Brand new keypad, and I can’t change the keybinds. Very frustrating.

Same here. Facing the same.

Me too, Razer Synapse has so many bugs, even version 4. I tried everything and now I just use my keypad for everything 

As a matter of interest, not that anyone from Razer cares, they have your money; the binding works if you close the Synapse software down but then my keypad won’t work!!! FFS

I just installed synapse 4, i hope that it works fine, i use my Tartarus Pro in SolidWorks and the device is perfect for all these keymaps but synapse 3 was bad with a big Bad.

Still it is bad and the software loses constant the profiles.

Had a similar issue, here is how I got it to work.
 

Fix for Razer Tartarus Not Working Properly

If you're having issues with your Razer Tartarus and Razer support hasn’t been helpful, try this method:

Step-by-Step Solution

1. Uninstall All Razer Software

   • Go to Control Panel > Programs & Features and remove all Razer software.

2. Manually Delete Razer Folders

   • Navigate to both:
     • C:\Program Files\Razer\
     • C:\Program Files (x86)\Razer\
   • Delete the Razer folders in each location.

3. Restart Your Computer

   • Ensures all changes take effect.

4. Install Razer Synapse 4

   • Download and install Synapse 4 from the official Razer website.

5. Use Guest Mode (DO NOT Log In to Your Razer Account)

   • When prompted to log in, select Guest Mode instead of signing in.

6. Connect and Configure in the Correct Order

   • First, plug in the Razer Tartarus and wait for it to be recognized.
   • Remap all keys on the Tartarus before connecting any other devices.
   • Once the Tartarus is fully configured, then plug in the Razer Ornata Chroma (or any other Razer keyboard).

7. Remap Keys on the Ornata Chroma (If Needed)

   • At this point, you should also be able to remap keys on the Ornata Chroma.

This method ensures that Synapse correctly detects and configures the devices without conflicts. Hopefully, it helps you too! If you run into issues, try repeating the steps exactly.