The app was not discontinued — it was renamed. Sony states that Headphones Connect “was renewed to Sony | Sound Connect in October 2024”. Here is what moved and how to fix it when it will not see your headphones.

Hold Create and PS until the light bar blinks, then pair from Windows Bluetooth settings. Use USB if you want haptic feedback and adaptive triggers — Sony confirms those need a wired connection on PC.

Settings → Accounts → Other users → Change account type is the whole job. Here are all four methods, and an honest answer for the lockout case most guides skip.