Saturday, 1 October 2022

MDR Proxy - firmware sidegrade tool for Sony bluetooth headphones/earbuds

Here you can find a tool which allows us to install previous firmware versions to our Sony bluetooth headphones/earbuds.

Please read the guide carefully!

2022-12-09 - Added the 1.6.1 firmware version for WF-1000XM4 to the firmware library.

Saturday, 17 September 2022

New web address & some info about the next update


I've updated the domain name from to 
When accessing the old address, you will be automatically redirected to the new one.

An update to the Walkman One firmware will come at some point. Highlights of this update would be (at least) a new region, called J3, which in my opinion sounds very good (I'm using it for some time already), and a low latency USB DAC mode, enabling us to use our players for watching movies or other real time applications with delay between the video and audio so low that it becomes unnoticeable.

In the meanwhile you can try the J3 region on the WM1A/Z players. You can download a version of Walkman One with the J1, J2, and J3 regions here.

In order to install this you must first use the StockRevert package for the Walkman One firmware in order to get back to the stock firmware. Afterwards you can install this version. The settings file's contents won't be updated, so you won't see J1, J2, and J3 in the list of regions, but you can set it to one of these (it should look like REG=J3, for example). You can also delete the settings file. It will be recreated at the next reboot, and the list of regions will show the new regions.

There are no other builds for other devices at the moment.

Take care.

Friday, 7 January 2022

The stock playback icons are now available!


If you tried the "Love Live! Sunshine!!" playback icons but now you want to get back to the stock ones, they are now available here.

I'd like to also take this opportunity to thank everyone who supported me so far. You're awesome, and I really appreciate the support!

Happy new year!

Sunday, 19 December 2021

The "Love Live! Sunshine!!" edition icons are now available

You can find installers for the "Love Live! Sunshine!!" edition icons, here. They will only work while you are on the stock firmware for your player. Check out more details on the page linked above.

Installers for the stock icons will be available in the next few days!

Friday, 17 December 2021

"Love Live! Sunshine!!" edition coming to all Walkman players

A nice visitor of this website contacted me recently, asking if there's a way to make the "Love Live! Sunshine!!" edition (that exists only for some NW-A50Series players) available to everyone, given that he already owns one of these special edition NW-A50 players.

Fortunately, that is possible, so installers for this will come soon for NW-A30, NW-A40, NW-A50, NW-ZX300, and NW-WM1A/WM1Z, and it will work without any issues with the custom firmware, as well as with the stock firmware. Of course, there will also be installers to revert the icons to their stock appearance.

These special edition NW-A50 players are selling for as much as $400 on websites like eBay, so I think it will be nice if people can get this on their players without having to pay such amounts of money.

This is the NW-WM1A with the special icons

Wednesday, 3 November 2021

Read before installing


Information related to most of the questions you might have, is already documented.

Please check out the FAQ section, as well as all TXT info files that are placed strategically in the folders of the downloaded firmware archive.

TXT info files that can be found in the downloaded firmware archive (they can be opened with any basic text editor, like Notepad)

You're missing important pieces of information by not reading the available info.

If you think you read all the info and there's still no answer to your question, feel free to ask it in the comments section or via email.

Thanks for your understanding.

Friday, 1 October 2021

Walkman One for NW-ZX300Series

The Walkman One firmware is now available for the NW-ZX300Series players.

Big thanks to Nayparm at for his generous donation of a WM1A (after having to sell mine, unfortunately), and to everyone who supported me so far! 🍺

As with the other recent releases, this firmware integrates the Midnight and Dawn sound signatures as "Warm" and "Bright", and adds a "Neutral" sound signature, as well as the WM1Z sound.

The Bright/Dawn signature that can be found in this firmware was not previously released as standalone.

The "Neutral" sound signature is a combination of Midnight and Dawn.

You can choose your sound signature from the settings file.

If you're using some other custom firmware on the ZX300, you'll first have to revert to stock, using the StockRevert package made for your installed firmware.

For more info about the settings file, firmware installation and reverting stock, and more, please check out the FAQ section.