Hi! I see you're having trouble with your SuperLive Plus app showing a black screen and the device not appearing online. Let's work through this together.

First, can you tell me if your device (camera, DVR/NVR) has power and is connected to a network (likely Wi-Fi or Ethernet)? Sometimes the camera or recording device might have a connection or power issue causing the black screen and offline status.

Assuming the device is powered and connected, here’s a step-by-step approach to try:

1. Restart the App and Device:
Completely close the SuperLive Plus app on your Windows device, then reopen it. Next, restart the camera or DVR/NVR device itself to refresh the connection.

2. Check Network Connection:
Make sure both your Windows device and the camera system are on a stable network, preferably the same Wi-Fi or LAN. If you have access to your router, ensure the device is connected correctly.

3. Confirm Device is Online:
The device may appear offline if there’s a network issue or configuration problem. If your device uses DHCP (automatic addressing), confirm there’s no failure or conflict. If needed, assign a static IP to the device matching your network.

4. Update the App:
Ensure you have the latest version of SuperLive Plus installed on your Windows device from a reliable source.

5. Check App Settings:
Inside the app, verify the device has not been deleted or removed; if so, re-add it using the server list or QR code scanning options.

If after these steps the problem continues—especially the black screen or "device offline" message—please let me know what device model you're working with and any other details about your network setup. This will help me guide you toward more specific settings or advanced troubleshooting.

Here is a helpful video on troubleshooting SuperLive Plus connectivity that may assist visually: Troubleshooting Errors and some additional tips here JustAnswer Solution .

Let me know how it goes! Are you satisfied with this initial guidance?