> ## Documentation Index
> Fetch the complete documentation index at: https://c5tako.zipher.space/llms.txt
> Use this file to discover all available pages before exploring further.

# SNIFFER

> View nearby BLE advertisements and device information.

View BLE devices advertising near C5TAKO™ and open the details for each device.

## 📊 BLE Monitor

```text theme={"theme":{"light":"github-light","dark":"dracula"}}
Bluetooth → SNIFFER → BLE Monitor
```

Use this view to see BLE advertisements detected by the device and assess how much BLE activity is present nearby.

1. Open `Bluetooth → SNIFFER → BLE Monitor`.
2. Wait for devices to appear on the display.
3. Hold the center button for about one second to stop.

## 🔎 Inspector

```text theme={"theme":{"light":"github-light","dark":"dracula"}}
Bluetooth → SNIFFER → Inspector
```

Use this view to inspect the detected BLE device list and details one device at a time.

1. Open `Bluetooth → SNIFFER → Inspector`.
2. Select the device to inspect.
3. Read the details on the display.
4. Press left to go back, or use [the feature-stop procedure](https://c5tako.zipher.space/en/getting-started/controls.md#stop-an-active-feature) to leave the active screen.

> [!NOTE]
>
> The displayed name or address may not reliably identify an owner or device type. Some devices automatically rotate their address for privacy.

![BLE Monitor screen](https://mintcdn.com/zipherscx/rDQSUIJ--0_uf6Fx/images/device/bluetooth-monitor.jpeg?fit=max\&auto=format\&n=rDQSUIJ--0_uf6Fx\&q=85\&s=9cba2d53392662f653fd64c792812ac0)

![Bluetooth Inspector screen](https://mintcdn.com/zipherscx/rDQSUIJ--0_uf6Fx/images/device/bluetooth-inspector.jpeg?fit=max\&auto=format\&n=rDQSUIJ--0_uf6Fx\&q=85\&s=7cafb4f726ecb4f249b734dfd402bc07)

<video controls muted playsInline preload="metadata">
  <source src="https://mintcdn.com/zipherscx/rDQSUIJ--0_uf6Fx/videos/device/bluetooth-monitor-inspector.mp4?fit=max&auto=format&n=rDQSUIJ--0_uf6Fx&q=85&s=745e8be1bac54d77083d3fe8799a184a" type="video/mp4" />
</video>

## If no devices are found

1. Move the device closer to C5TAKO™.
2. Confirm that Bluetooth is enabled and the device is advertising.
3. Use [the feature-stop procedure](https://c5tako.zipher.space/en/getting-started/controls.md#stop-an-active-feature) to close the current scan screen.
4. Turn Bluetooth off and on again on the test device, then retry.
5. If it is still not found, restart C5TAKO™.


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