A screen advertises an Auracast broadcast, but your headphones do not find it through ordinary Bluetooth pairing. The first question is not whether the Bluetooth version number is high enough. It is whether each part of your setup supports the required Auracast role.
Bluetooth SIG distinguishes transmitters, receivers and assistants used to select a broadcast. Its product directory lists supported roles, which are more useful here than a generic Bluetooth label.
Check the whole route to your ears
Write down three things: the broadcast source, the receiving headphones and the method for choosing the broadcast. Some setups use a phone or another assistant for that selection. Follow the instructions for your exact products rather than assuming every phone provides the same controls.
For each model, look for an explicit Auracast statement and any required software version. A promise of a future update is not confirmation that the feature is available on your device today. The product directory is a starting point; the manufacturer’s current instructions should resolve model-specific details.
Try a known broadcast before drawing conclusions
If a demonstration is available, ask for its broadcast name and supported joining procedure. Start at a comfortable volume, select it using that procedure and check that you hear the intended source. Then practise leaving it and returning to your usual audio.
If it fails, record the models, software versions and the step where it stopped. Separate “cannot discover the broadcast” from “joined but no audio”. Working ordinary Bluetooth playback does not settle Auracast compatibility. Nor does receiving audio establish that a device can transmit a broadcast of its own.