Start by disabling multipoint in the Nothing X app
A disconnecting Nothing Ear (3) often boils down to a single setting in the Nothing X app. Open the app, tap your Ear (3), scroll to Connection, and toggle Connect to two devices off. Multipoint lets you bounce between your phone and laptop, but it doubles the Bluetooth coordination needed every second. If the dropouts stop after this, you've found the main culprit.
Does the disconnecting happen on iOS 18.4 or later?
The Nothing X app has a known crashing issue on iOS 18.4 and later that can take your audio connection down with it. The app might not visibly close, but the background audio service can fail, making it seem like the buds are dropping out. Check the App Store for a pending update, or go to Settings > General > iPhone Storage > Nothing X > Offload App, then reinstall it fresh.
Offloading clears the corrupted cache without wiping your saved settings. If you're on Android, skip this and jump to the cache clear step below.
Check the ear tip seal and retake your sound profile
Nothing Ear (3) uses in-ear detection to pause audio when a bud is removed. A bad seal from the wrong tip size can trick the sensor into thinking the bud keeps falling out, which feels exactly like a disconnect. Open the Nothing X app, tap Fit Test, and swap tips if it fails.
While you're deep in the settings, retake the Personal Sound Profile. A corrupted or outdated profile is a known trigger for audio glitches, especially after a firmware update. The test takes about two minutes and builds a custom EQ curve based on your hearing.
Reset the Nothing X app cache before anything else
The Nothing X app accumulates cache data that can go stale and send bad instructions to the buds. On Android, open Settings > Apps > Nothing X > Storage > Clear cache. Don't tap Clear data unless you're fine re-pairing and redoing your sound profile from scratch. On iOS, the offload trick mentioned above does the same job.
Update the buds to the latest firmware
Nothing has shipped several firmware patches that directly target Bluetooth stability, especially for the LDAC and LHDC high-res codecs. Open Nothing X, tap your Ear (3), go to Settings > Firmware Update, and install whatever is available. Both buds need to be in the case with the lid open, the case needs more than 50% battery, and your phone has to stay close during the update.
Unpair and re-pair from scratch
A corrupt saved pairing record on your phone won't be fixed by resetting the buds alone. Open your phone's Bluetooth settings, find Nothing Ear (3), and tap Forget or Unpair. Now put both buds in the case, leave the lid open, and hold the button on the back of the case for about 3 seconds until the LED blinks white. Your phone should see the buds in pairing mode. Run through the fresh setup and test the connection.
Hold the case button for a full 10-second reset
If the dropouts keep happening, a deeper hardware reset can clear internal pairing corruption. Put both buds in the case, leave the lid open, and press and hold the button on the back of the case for 10 seconds. The LED will flash red, confirming the reset. This wipes the buds' internal pairing table, so you'll need to go through the pairing setup again on your phone. Take both buds out and put them in your ears at the same time so they resync as a stereo pair.
Move away from 2.4 GHz interference sources
Bluetooth shares the 2.4 GHz band with WiFi, microwaves, and a bunch of smart home devices. If you're sitting right next to your WiFi router or standing near a running microwave, the radio congestion can cause the buds to cut out. Walk outside or into a different room away from electronics. If the connection smooths out, the fix is moving your router to 5 GHz only for compatible devices.
Low battery and a weak case lid magnet can mimic dropouts
A weakening case lid magnet is a known long-term issue on the Ear (3). If the buds aren't seated perfectly in the case, they won't charge properly, and low battery can throttle the Bluetooth radio output. Drop the buds in the case, make sure they click into place, and charge both to 100% before judging stability. If the lid feels loose, a quick fix is placing the case on a flat surface without lifting it by the lid.
