Coolstar Sst — Audio Driver Download ((free))

Reboot your Chromebook into your custom firmware (Edk2/Tianocore).

The driver itself is generally considered safe if downloaded from the correct source. However, it modifies low-level system functions. Use at your own risk.

If you've installed Windows on a Chromebook, you've likely discovered that the audio doesn't work out of the box. This is because the unique audio hardware found in Chromebooks (such as specific Realtek codecs like the ALC5677 and amplifiers from manufacturers like Maxim) lacks official drivers from the computer manufacturers for the Windows operating system. This is where the work of independent developer, CoolStar, comes in.

Treat “CoolStar SST audio driver download” like a rare vinyl record in a flea-market crate: exciting when it’s the right edition, risky if counterfeit. Verify the source, match the label (device/kernel), and always keep a reliable recovery plan before you press play.

These custom audio drivers are designed for devices running a custom UEFI firmware (like MrChromebox). The community has tested them on a variety of Chromebooks. Please note that many CoolStar audio drivers (including SST, ACP, and SOF) require a paid license, typically purchased for a specific board name.

If you find yourself in Alex's shoes, staring at a silent Linux installation on a 2013–2015 Mac, remember these rules:

Use the wushowhide.diagcab (Microsoft’s official tool to hide updates):

Right-click the setup.exe or install.bat file and select .

The is a custom, community-developed driver that enables audio on certain Intel-based Chromebooks (often “Brask,” “Coral,” “Apollo Lake,” or “Gemini Lake” platforms) after they have been modified to run Windows or Linux .

Click the download link provided for the SST driver. The file will typically download as a .zip archive or a standalone installer. How to Install the CoolStar SST Audio Driver

: Drivers are typically found on the Official CoolStar Website or through their GitHub repository .

This is the #1 complaint. After a Windows Update, the driver reverts to the broken Microsoft one.

You will find two crucial programs inside the ZIP file:

: While many of CoolStar's tools are open-source, some of the more complex audio drivers (like those for newer Intel generations) were released as paid drivers to support the hundreds of hours of development required to reverse-engineer the hardware. Community Experience