The Bluetooth page in Device Status⁺ scans nearby Bluetooth Low Energy peripherals. It is useful for checking discovery, but it is not a complete list of everything shown in iOS Bluetooth Settings.
Test with a known peripheral
- Turn Bluetooth on in Settings.
- Place a known-working BLE peripheral nearby and make sure it is advertising.
- Open Hardware → Bluetooth and allow Bluetooth access.
- Start scanning if the scan is not already running.
- Watch for the peripheral and note its signal reading.
- Move farther away, then closer, and compare several readings rather than one sample.
Some accessories stop advertising after connecting elsewhere. Follow the accessory’s instructions to make it discoverable.
What does signal strength show?
RSSI is a received signal-strength estimate, usually displayed in dBm. A less negative number generally indicates a stronger received signal, but walls, body position and interference can change it rapidly. It is not a precise distance measurement.
An unnamed device is not necessarily suspicious: peripherals do not always advertise a readable name.
Why are my headphones missing?
An audio accessory may not advertise as a discoverable BLE peripheral. Pair and play audio through iOS Settings to test that use case separately. An empty scan alone cannot diagnose a broken Bluetooth radio.
Use the stereo guide to check audio channels after connecting headphones.
Ready to try it?
Device Status⁺ · Monitor and test your iPhone hardware
Free on the App Store