Left front view of the Sony SRS XB31 speaker.

Sony XB31 Hard Reset Instructions

We offer here our Sony XB31 hard reset instructions, to return this Bluetooth speaker to its out-of-the-box settings.  Hard resetting to factory default state takes the XB31 back to a fresh, known-good state. Plus, it blanks  any earlier paired Bluetooth devices from memory. Removing these stops this speaker from pairing to any nearby Bluetooth devices. Also, you might hard reset to get it ready for sale or re-gifting, or to stop it from pairing wirelessly with devices you no longer wish it to connect with.

Sony XB31 Hard Reset, Step by Step Instructions

1. Turn the XB31 ON

Press and release the Power button for a half-second or so. Find the Power button as shown in the next picture.

Picture of the -Power- button on the Sony XB31. Sony XB31 Hard Reset.
Sony XB31 -Power- button.

Then, the status light comes on, as shown next.

Picture of the -Power- lamp glowing.
The -Power- lamp glowing.

The speaker may make a ding-dong sounding beep when it powers up, to announce that it has paired, should it connect to a nearby device. Or it may make no sound if it does not pair.  But whether the unit syncs or not, this hard reset procedure works the same way, as follows.

2. Press and Hold the Power and Volume DOWN Buttons Together

Find these buttons as shown next.  They are both on the top button panel, as we point out in the next picture.

Picture of the Volume DOWN and Power buttons.
The Volume DOWN and Power buttons.

The XB31 then enters the hard reset process.

Then after about five seconds, the speaker powers OFF, and the status lamp goes dark, as shown next. So release the buttons at this point. Note that on the SRS XB31, there is no power-down sound.

Picture of the dark -Power- lamp.
The -Power- lamp dark.

3. Check that your Sony XB31 Did Indeed Hard Reset

Next, power on the unit again, as detailed in step 1 above.

Note that after hard reset, the XB31 comes up in pairing mode. The Pairing Mode lamp quickly flashes blue to let you know this. E.g. See this in the next picture.

Picture of the Bluetooth Status lamp glowing.
The Bluetooth Status lamp glowing.

This is a signal that you may then look for this speaker on a nearby BT device, and pair to it if you so desire.

4. Done with Sony XB31 Hard Reset !

The hard reset is now finished. So you may now sell or gift the speaker, or pair it again with your favorite Bluetooth devices.

After a hard reset, the XB31 no longer automatically links with any Bluetooth source device. Therefore, to restore auto linking, you first pair it manually with a device. Then after that, any time that both speaker and that device have Bluetooth turned on, and are in range, pairing automatically occurs  once more.

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Other Sony XB31 Posts

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    1. Official Sony XB31 Support Page
    2. Where to Buy the Sony XB31

Revision History

    • 2023-03-23: First published.