They dropped support for the 2015 Steam Controller 3 years ago. If you want to use it on modern versions of steam, you need to use a 3rd-party firmware update tool.
There was some window of time where it was available as an update in Steam, but it has been removed. If you didn’t update it during that window you have to use the 3rd party tool (exactly once, not to play every time).
They dropped support for the 2015 Steam Controller 3 years ago. If you want to use it on modern versions of steam, you need to use a 3rd-party firmware update tool.
what do you mean? I can still play with the old steam controller without third party software
There was some window of time where it was available as an update in Steam, but it has been removed. If you didn’t update it during that window you have to use the 3rd party tool (exactly once, not to play every time).