How to Repair IMEI Number on Xiaomi Phone After ROM Flash

Bluetooth not connecting on a Xiaomi phone is usually fixed by resetting the Bluetooth connection, checking device compatibility, and clearing wireless system errors in HyperOS or MIUI. Most cases of xiaomi bluetooth not connecting come from cached pairing data, battery restrictions, or a temporary xiaomi bluetooth bug after an update.

Steps

Turn Bluetooth off, then restart both devices.

Power off the Xiaomi phone and the accessory for 30 seconds. Turn both back on, then try pairing again from Settings > Bluetooth.
Forget the paired device and pair again.

Open the saved Bluetooth device, tap Forget or Unpair, then start a fresh pairing process. Old pairing records often cause failed reconnect attempts.
Check permissions and battery restrictions.

Open Settings > Apps > Bluetooth or System apps, then allow nearby device access if available. Disable aggressive battery saving for Bluetooth-related system processes in HyperOS.
Reset network settings.

Open Settings > Connection & sharing or Additional settings, then use Reset Wi-Fi, mobile networks, and Bluetooth. A reset often helps fix bluetooth HyperOS issues after system changes.
Install the latest system update.

Open Settings > About phone > HyperOS/MIUI version and install pending updates. A patch may correct a known xiaomi bluetooth bug affecting audio devices, smartwatches, or car systems.

🤔Note:

If Bluetooth stopped working right after a system update, the issue is often caused by old pairing records or a temporary wireless service conflict rather than hardware damage.

Common Issues and Fixes

Issue	Likely Cause	Fix
Phone sees the device but will not connect	Corrupted pairing record	Remove the saved device on both sides and pair again.
Bluetooth works with one accessory but not another	Codec or profile mismatch	Test with AAC/SBC defaults, then reconnect the accessory.
Connection drops after a few seconds	Battery optimization blocking background activity	Disable battery saver and allow unrestricted activity for system Bluetooth services.
Car Bluetooth fails after a HyperOS update	Temporary software bug or outdated car head unit cache	Reset network settings on the phone and delete the phone profile from the car.
Earbuds connect for calls but not media	Media audio profile disabled	Open the paired device settings and enable Media audio.

Quick Tips

Keep the accessory close during first pairing: Initial setup can fail at longer distances.
Remove old unused Bluetooth devices: A long saved device list can cause pairing confusion on some Xiaomi models.
Turn off VPN, airplane mode, and dual app experiments: System-level toggles sometimes interfere with wireless services during testing.
Check app-specific audio problems separately: If only one app has audio issues, the problem is usually app permission or output routing, not Bluetooth hardware.

💡Protip:

When testing a Xiaomi Bluetooth problem, pair with a simple accessory like basic earbuds or a speaker first. If that works, the issue is more likely device compatibility or profile settings than the phone itself.

Why is Xiaomi Bluetooth not connecting after an update?

A recent HyperOS update can leave old pairing data or trigger a temporary system conflict. Removing the paired device and resetting network settings usually fixes the issue.

How to fix Bluetooth on Xiaomi when no devices appear?

Bluetooth scanning may be blocked by permissions, battery saver, or a frozen system service. Restarting the phone, enabling nearby device access, and updating HyperOS are the most effective checks.

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