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Unable to connect the headset to a BLUETOOTH device with one-touch connection (NFC)

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Help Guide Wireless Noise Cancelling Stereo Headset MDR-ZX780DC Unable to connect the headset to a BLUETOOTH device with one-touch connection (NFC) Keep the smartphone close to the headset until the smartphone reacts. If you fail to connect, move the smartphone slowly on the N-Mark of the headset. Check that the NFC function of the smartphone is set to on. If the smartphone is in a case, remove it. NFC reception sensitivity varies depending on the device. If you repeatedly fail to connect the headset with a smartphone by one touch, connect it to the headset by on-screen operation on the smartphone. You cannot make a one-touch connection (NFC) while charging the battery because the headset cannot be turned on. Finish charging first, and then make the one-touch connection (NFC). You cannot make a one-touch connection (NFC) when the headphone cable is connected to the INPUT jack. Remove the headphone cable from the headset. Related Topic One-touch connection (NFC) with a smartphone (Android 4.1 or later) One-touch connection (NFC) with a smartphone (Android 2.3.3 or later, and less than Android 4.1) 4-596-344-11(1) Copyright 2016 Sony Corporation 77

Section	Page
Help Guide MDR-ZX780DC	1
Table Of Contents	6
Read this first	9
What you can do with the headset	10
Location and function of parts	11
BLUETOOTH function indicator	13
List of the included items	14
About the supplied manuals	16
System requirements for battery charge using USB	17
Charging the headset	18
Available operating time	20
Checking the remaining battery charge	21
What you can do with the BLUETOOTH function	22
How to make a wireless connection to BLUETOOTH devices	23
One-touch connection (NFC) with a smartphone (Android 4.1 or later)	24
One-touch connection (NFC) with a smartphone (Android 2.3.3 or later, and less than Android 4.1)	26
Disconnecting the smartphone by one touch (NFC)	29
Switching the device by one touch (NFC)	30
Pairing and connecting with an Android smartphone	31
Connecting to a paired Android smartphone	34
Pairing and connecting with an iPhone	36
Connecting to a paired iPhone	39
Pairing and connecting with other BLUETOOTH devices	41
Connecting to a paired BLUETOOTH device	43
Connecting the headset to both a music player and a smartphone or mobile phone	45
Connecting the headset to 2 Android smartphones	46
Connecting the headset to an Android smartphone and an iPhone	48
Using the supplied headphone cable	50
Listening to music from a device connected via BLUETOOTH	51
Controlling the audio device (BLUETOOTH connection)	53
Disconnecting BLUETOOTH connection (after use)	54
Noise cancelling function	55
Using the noise cancelling function	56
Using the AI noise cancelling function	58
Switching the sound quality mode	60
Receiving a call	62
Making a call	64
Functions for a phone call	66
Using the voice assist function (Siri)	68
Precautions	69
What is BLUETOOTH wireless technology?	70
Trademarks	72
Customer support websites	73
What can I do to solve a problem?	74
The headset is not turned on.	75
Charging cannot be done.	76
Charging time is too long.	77
The headset cannot be recognized by a computer.	78
No sound	79
Low sound level	80
Low sound quality	81
Sound skips frequently during playback.	82
The noise cancelling effect is not sufficient.	83
Pairing cannot be done.	84
Unable to connect the headset to a BLUETOOTH device with one-touch connection (NFC)	85
Unable to make a BLUETOOTH connection	86
Distorted sound	87
The BLUETOOTH wireless communication range is short, or the sound skips.	88
The headset does not operate properly.	89
No voice from callers	90
Low voice from callers	91
Resetting the headset	92