Bluetooth audio cutting out on the Xiaomi 15 Ultra can quickly ruin music, calls, or video playback. One moment the sound is fine, then it stutters, drops, or disconnects completely. This usually happens because of interference, power restrictions, or connection conflicts, and most of the time, you can fix it without advanced tools.
Why Bluetooth Audio Keeps Cutting Out on Xiaomi 15 Ultra
- Bluetooth interference from nearby devices or Wi-Fi networks.
- Battery optimization limiting Bluetooth performance in the background.
- Corrupted Bluetooth cache or unstable pairing data.
- Audio codec incompatibility between the phone and the Bluetooth device.
- Outdated system software causing connection instability.
1. Restart Bluetooth and Refresh the Connection
Bluetooth connections can become unstable after long usage or sleep cycles. Restarting Bluetooth forces the phone and the audio device to reconnect cleanly.
Swipe down from the top of the screen to open Quick Settings.
Tap Bluetooth, and then turn it off.
Wait a few seconds, then tap Bluetooth again to turn it back on and reconnect your device.
2. Restart the Xiaomi 15 Ultra
A simple restart clears temporary system processes that can interfere with wireless audio. This step often fixes random audio drops right away.
Swipe down from the top of the screen to open Quick Settings.
Tap the Power icon, and then tap Restart.
Wait for the phone to boot up fully before testing Bluetooth audio again.
3. Re Pair the Bluetooth Audio Device
Old pairing data can become corrupted, especially after system updates. Removing and reconnecting the device refreshes the connection profile.
Open Settings, and then tap Bluetooth.
Tap the connected audio device, and then tap Unpair.
Put your Bluetooth device in pairing mode, then pair it again from the list.
4. Turn Off Battery Optimization for Bluetooth
Aggressive battery saving can limit Bluetooth performance, especially when the screen is off. Disabling optimization ensures a stable audio stream.
Open Settings, and then tap Battery.
Tap App battery saver, and then find Bluetooth.
Set it to No restrictions to prevent background interruptions.
5. Reduce Wireless Interference
Bluetooth shares space with Wi-Fi and other wireless signals. Heavy interference can cause audio to stutter or cut out.
Open Settings, and then tap Wi-Fi.
Switch to a 5 GHz network if available, or temporarily turn Wi-Fi off to test audio stability.
Move closer to your Bluetooth device and avoid crowded wireless environments.
6. Check Bluetooth Audio Codec Settings
Some Bluetooth devices do not handle advanced codecs well. Switching to a more stable codec can prevent dropouts.
Open Settings, and then tap About phone.
Tap MIUI version several times to enable Developer options.
Go back to Settings, tap Additional settings, then tap Developer options.
Scroll to Bluetooth Audio Codec and select SBC or AAC, then test the audio again.
7. Update the System Software
Software bugs can cause Bluetooth instability, especially on newer devices. Installing updates often includes fixes for audio and connectivity issues.
Open Settings, and then tap About phone.
Tap System update, and then check for updates.
Install any available update and restart the phone afterward.
Bluetooth audio on the Xiaomi 15 Ultra should be smooth and reliable once interference and power limits are removed. After refreshing the connection and adjusting the right settings, audio dropouts usually disappear completely.
FAQs
Why does Bluetooth audio cut out only when the screen is off?
This usually happens because battery optimization restricts Bluetooth activity in the background. Disabling battery limits for Bluetooth fixes this behavior.
Does Bluetooth audio quality affect connection stability?
Yes. High quality codecs can be less stable on some headphones or speakers. Switching to a simpler codec improves reliability.
Should I reset network settings if Bluetooth keeps cutting out?
Only if all other fixes fail. Network resets remove all saved connections, but they can resolve deeper Bluetooth configuration issues.
