Sony PCM-D10 Help Manual page 218

Help Guide
Linear PCM Recorder
PCM-D10
You cannot establish a Bluetooth connection with the one-touch operation (NFC
connection).
Your linear PCM recorder is turned off. Make sure that the power to the linear PCM recorder is turned on.
The NFC function of your linear PCM recorder is turned off. While playback is on standby, select [
Settings] from the HOME menu and make sure that [ON] is selected.
Select [ Bluetooth] - [NFC Settings] - [Advanced] from the HOME menu and see if either [Audio Device Only] or [REC
Remote Only] is selected. You cannot establish an NFC connection with the device that is not selected. If this is the cause of
the issue, select [Auto(Preferred)].
Unlock the smartphone screen.
The NFC function of the smartphone is turned off. Depending on the smartphone, you need to turn on the NFC function or
the power. For detailed instructions, refer to the manual supplied with the smartphone.
While a recording process is in progress (recording is in progress or paused or the linear PCM recorder is paused for
recording), you cannot establish a connection with the one-touch operation. Before establishing the connection, make sure
that recording is on standby.
4-744-529-11(2) Copyright 2018 Sony Corporation
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Bluetooth] - [NFC