Sony WH-1000XM4 Help Guide - Page 143

and the headset is initialized. This operation resets volume settings

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Help Guide Wireless Noise Canceling Stereo Headset WH-1000XM4 Initializing the headset to restore factory settings If the headset does not operate correctly even after resetting, initialize the headset. Turn off the headset while the USB Type-C cable is disconnected and then press and hold the (power) button and the CUSTOM button simultaneously for 7 seconds or more. The indicator (blue) flashes 4 times ( ), and the headset is initialized. This operation resets volume settings, etc. to the factory settings, and deletes all pairing information. In this case, delete the pairing information for the headset from the device and then pair them again. If the headset does not operate correctly even after initializing, consult your nearest Sony dealer. Note If you have updated the software after purchasing the headset, even if you initialize the headset, the software is retained updated. When you initialize the headset to restore the factory settings after you change the language of the voice guidance, the language will also return to the factory setting. 5-013-731-11(1) Copyright 2020 Sony Corporation 143

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Help Guide
Wireless Noise Canceling Stereo Headset
WH-1000XM4
Initializing the headset to restore factory settings
If the headset does not operate correctly even after resetting, initialize the headset.
Turn off the headset while the USB Type-C cable is disconnected and then press and hold the
(power) button and
the CUSTOM button simultaneously for 7 seconds or more.
The indicator (blue) flashes 4 times (
), and the headset is initialized. This operation resets volume settings,
etc. to the factory settings, and deletes all pairing information. In this case, delete the pairing information for the headset
from the device and then pair them again.
If the headset does not operate correctly even after initializing, consult your nearest Sony dealer.
Note
If you have updated the software after purchasing the headset, even if you initialize the headset, the software is retained updated.
When you initialize the headset to restore the factory settings after you change the language of the voice guidance, the language
will also return to the factory setting.
5-013-731-11(1) Copyright 2020 Sony Corporation
143