SOF Audio Driver Installed but No Sound Output

System Details

  • Device: [Acer Chromebook 515 cb515-1ht]
  • OS: [Windows 11 25h2]
  • Firmware Type: [UEFI Full ROM only]
  • Firmware Version: [idk but i flashed it like 5 months ago]
  • Internal storage type: [NVMe]

Summary of the Issue

Hi, I purchased the SOF audio driver and installed it successfully. Everything shows as working (no errors, audio bars moving), but there is no sound output at all, including headphones.

It seems like the driver isn’t fully functioning for my system. Can I get a assistance with this issue?

Sounds like you bought the wrong driver.

If device is a Sand (you didn’t specify it, but it’s the only match for cb515-1ht), it uses AVS, not SOF, as per Coolstar’s guide: How to install Windows 10/11 on a Chromebook