Sony WF-1000XM4 firmware update, version 1.4.2
Sony has released another firmware update for the WF-1000XM4.
It includes the previous update (here) and some new changes.
- Improves the stability of music playback
- Improves call voice quality
- Improves general performance
 Previous benefits and improvements
- Improves the stability of Bluetooth connection and music playback
- Enhances other functions to improve general performance
- Improves Bluetooth connection stability
- Fixes an issue where the Noise Canceling function or Ambient Sound Mode is momentarily interrupted
- Improves other functions
Make sure both the phone and headset are fully charged before attempting the update. Sometimes the update fails if they are not fully charged in certain instances.
