If you are searching for a stable screen mirroring for casting your screen into larger screen, this useful Screen Mirroring app can do the work to view your phone on your TV.
How to Use Screen Mirroring:
1. Make sure your phone/tablet and smart TV are connected to the same Wi-Fi network.
2. Enable “Wireless display” on your phone.
3. Enable “Miracast” on your smart TV.
4. Search and pair the device.