One Beats Studio Pro side goes silent while the other keeps playing. It’s almost always a software or connection glitch, not a blown driver. Before you start troubleshooting, try this: press and hold the power button on the right earcup for 2 seconds to turn the headphones off, then hold it again until the fuel gauge LEDs blink white to turn them back on. If both sides come back, you’re done.
Check the L/R Audio Balance Slider
If the balance slider is off-center, all the audio goes to one earcup regardless of which side is playing. On iOS, go to Settings > Accessibility > Audio & Visual > Balance and make sure it’s centered. On Android, the path varies by manufacturer, look for Accessibility > Hearing enhancements or search for “balance” in Settings. A 15-second check that saves a lot of unnecessary resets.
Re-Pair From Scratch
If only one earcup connects, the saved Bluetooth pairing on your phone might be corrupted. Go to your phone’s Bluetooth settings, find the Beats Studio Pro in the list, and tap Forget This Device (iOS) or Unpair (Android).
Now put the headphones in pairing mode: press and hold the power button for 5 seconds until the fuel gauge LEDs flash white. On your phone, select the Beats Studio Pro from the Bluetooth menu and pair them again. Test both sides before moving on.
Perform a Full Reset
When re-pairing doesn’t fix it, a deeper reset clears the internal pairing between the two earcups. Press and hold the system button (the power button on the right earcup) for 10 seconds. You’ll see the fuel gauge LEDs flash white, then one LED flashes red in a sequence that repeats three times. Once the lights stop, the headphones reset and turn back on automatically.
After the reset, pair the headphones to your phone again. This step often fixes one-side-silent cases that survive a simple power cycle.
Check the USB‑C Connection (If You’re Wired)
If you’re using the Beats Studio Pro over USB‑C for lossless audio, a loose or damaged cable can send audio to only one side. Unplug the USB‑C cable from both the headphones and your device, inspect the connector for bent pins or debris, then plug it back in firmly. Test with a different USB‑C cable if you have one handy.
Also make sure the Beats app on Android is version 1.6 or later if you’re using lossless USB‑C audio, older versions had bugs that could cause channel dropouts.
Disable Spatial Audio Temporarily
Personalized Spatial Audio can sometimes make stereo tracks sound hollow or unbalanced, especially if the head tracking or the spatial mix is off. On iOS, go to Settings > Bluetooth, tap the “i” next to your Beats Studio Pro, and turn off Spatial Audio. On Android, disable it from the Beats app under the ANC/Spatial toggle.
If turning it off brings back stereo sound, you can re-enable it later and see if a firmware update or re-calibration helps. Many users report this as the fix for a “one ear” effect on mixed-source audio.
Update the Firmware
Beats has pushed several firmware updates that address Bluetooth handshake and audio channel bugs. On iOS, the firmware updates automatically when the headphones are connected and charging nearby. On Android, open the Beats app, tap your Beats Studio Pro, and check for an update under the settings menu.
Leave the headphones on and near your phone during the update. After it finishes, restart the headphones and test both sides again.
Test on a Different Device
If one side still stays silent after all these steps, pair the headphones to another phone or a computer. If both sides work fine on the second device, the problem is with your original phone’s Bluetooth stack, not the headphones. Try resetting network settings on that phone or checking for a system update.
If the same side is silent on every device you try, the driver in that earcup is likely defective. That’s a hardware issue covered under the one-year warranty, reach out to Apple support with your proof of purchase.
