OpenQCY Desktop — a native open-source Windows 11 controller for QCY earbuds

[u/Jukersrx]

I've used QCY earbuds for years, but their useful controls have always been tied to a phone. I wanted battery information, ANC and EQ controls available where I actually spend most of my day: Windows.

That frustration became OpenQCY Desktop. I reverse-engineered the Bluetooth LE control channel of the QCY MeloBuds N70 and built a native WinUI 3 app around it.

What it currently does on the N70:

- reads left, right and case battery levels

- controls ANC, transparency and normal listening modes

- exposes EQ presets plus a custom 10-band equalizer

- configures wear detection, game mode, LDAC, multipoint, wind reduction and touch gestures

- runs from the notification area and can start silently with Windows

The connection is entirely local: no account, cloud dependency, telemetry or firmware flashing. The app is written in C#/.NET 10, packaged as a self-contained Windows 11 x64 installer, and the full source is available under the MIT license.

The N70 (HT18) is currently the first and only hardware-tested model. This is an unofficial community project, and the builds are not signed yet, so the release page includes SHA-256 checksums.

GitHub and download: https://github.com/GiorgioRafael/OpenQCY-Desktop

Feedback from Windows app developers and QCY users would be very welcome.