Hi there! I understand how frustrating it can be when your device isn't responding to your phone. Let's work together to resolve this issue.

Could you please let me know which device you're trying to control and how you’ve connected it to your phone (e.g., Bluetooth, Wi-Fi)? This information will help me provide more specific troubleshooting steps.

In the meantime, here are some basic steps you can try:

1. Restart your device: Sometimes, just rebooting both your phone and the device you're trying to control can help.

2. Toggle Airplane Mode: Turn on Airplane Mode for 20-30 seconds and then turn it off. This can refresh your network connections.

3. Check Bluetooth/Wi-Fi connection: If you're connecting via Bluetooth, make sure it's enabled on your phone and for the device in question. For Wi-Fi, ensure both devices are on the same network.

4. Forget and Re-pair the Device: If you're using Bluetooth, go to your phone's Settings > Connected Devices > Saved Devices. Remove the device and add it again.

5. Update Software: Check if there's an update available for either your phone's operating system or the device's software.

Please let me know the specifics, and we'll take it from there! Are you satisfied with these initial steps so far?