If you’re still only hearing from one side, you’ve found a macOS audio balance bug. To rule out the possibility that your computer is simply not playing well with audio equipment, try pairing it with another set of wireless speakers. But if your earbuds or headphones work fine, you’ll need to focus your attention on your machine. If the issue persists, you’ll know the problem is not your Mac computer.
To find out exactly where the problem is, try connecting your audio gadget to another device, like your smartphone or tablet. If none of the go-to troubleshooting methods work, you’ll need to run some basic diagnostics. Given this precedent, our guess is that if Apple hasn’t fixed this problem yet, it’s unlikely it’ll do so with a small patch. But there are reports of this glitch that date back to the Catalina days in 2017-that’s two entire macOS versions ago. With other glitches, we’d also suggest checking for a new macOS patch-and you can if you’re feeling lucky. If that doesn’t work, try rebooting your computer and checking for a firmware update for your audio accessory. So before you jump to any conclusions, you’re better off going through all the classic troubleshooting techniques: turning your machine’s wireless connection off and on again and disconnecting and reconnecting your gadget. To start, remember that (sadly) we live in a world where it’s totally normal for Bluetooth speakers, headphones, and earbuds to freak out from time to time. How to know you’re the victim of a macOS audio balance bug Apple has repeatedly updated its operating system, but the glitch just keeps resurfacing. Please ensure you are comfortable with careful handling of a powered on laptop with open case.Users have been reporting this bug for years. Some part of this guide also require the Macbook to be running for diagnosing the issue. I do not cover removal of the bottom case of a Macbook or soldering technique in this guide.
Not recommended if your Mac is in warranty.
As such this guide is for people who have ruled out debris in the headphone jack or a faulty sensor down the jack hole. This guide is for anyone for who has tried inserting something into their headphone port but this is not working or not fixing the audio consistently. This meant that more often than not, it was triggering the optical out red light and preventing sound from my internal speakers. On investigating the issue on my mac I discovered the issue was due to a poorly soldered pin on the headphone jack whose solder joint was already pretty poor and had become disconnected over time. Mac in images was an Early 2015 13” Macbook pro but this guide may help other model owners. For anyone who has a Macbook / Pro with the red light stuck coming out of the headphone port and no sound!
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