What or icon do you currently see in your Windows Device Manager? Is there a red light shining out of your headphone jack? Share public link
: If the issue started after an update, you can roll back the driver.
If you currently have Windows 10 installed and have no sound:
The 3.5mm headphone jack on the A1278 doubles as a digital optical audio output. Without the correct driver to manage the internal switch, Windows defaults to the digital output, disabling the internal speakers and causing a red optical laser light to glow inside the jack. Apple Macbook Pro A1278 Audio Driver Windows 10
Right-click CirrusAudio64.exe and select . Follow the on-screen installation wizard prompts. Restart your MacBook Pro once the installation concludes. Method 2: Manual Installation via Device Manager
Before diving into the solutions, it is crucial to understand the two main categories of issues that cause audio problems on this specific machine.
Older Macs, specifically those released before late 2013 (which includes the A1278), have a UEFI firmware that does not properly expose the audio interface to Windows when booted in UEFI mode. If you install Windows in UEFI mode, the sound card is invisible to the OS. No amount of driver tweaking or reinstalling will fix this because the operating system cannot "see" the hardware to talk to it. What or icon do you currently see in
Open the .zip file and navigate to: BootCamp > Drivers > Cirrus
Typically manifests as VEN_1013&DEV_4206 in Device Manager.
The most stable way to restore sound is to extract the dedicated audio controllers from Apple’s official legacy Boot Camp archive. Step 1: Download the Correct Boot Camp Package If you currently have Windows 10 installed and
If your Windows 10 was installed in Legacy BIOS mode, this method should successfully install the Cirrus Logic audio driver. If the installation was performed in UEFI mode, this method will likely fail, and you will still see a yellow exclamation mark in Device Manager.
This guide provides the exact steps and driver packages needed to restore audio to your MacBook Pro A1278 running Windows 10. Why Audio Fails on the MacBook Pro A1278 under Windows 10