Sony WF-1000XM5 Firmware Update, version 4.0.2

Just like the WH-1000XM5, the WF-1000XM5 has also received a firmware update. The update brings similar benefits, but lacks the security features of the system software. So I guess that was not related to Google’s Find My Device.

Adds support for the following features:

• Auto Switch
• Google Fast Pair through LE Audio priority connection
• The new Google’s Find My Device (only during dedicated Classic Audio connection)

The fast pair seems to be absent from the WH-1000XM5 update, so not sure if that is already part of the WH-1000XM5 firmware or only specific to the WF-1000XM5.

Before updating the firmware, make sure both the updating device and the earbuds are fully charged. One might need to update the Sony headphone app to the new Sound Connect app to have the update show up.

Some users are reporting improved ANC function on the WH-1000XM5 and WF-1000XM5. Anyone else able to confirm?