Here’s a comprehensive guide on how to mirror your iPhone screen to a Roku TV:

Prerequisites:

• Compatible Devices: Ensure your iPhone is running iOS 12.3 or later and your Roku device supports AirPlay 2. Most newer Roku models are compatible.
• Same Wi-Fi Network: Both devices must be connected to the same Wi-Fi network.

Method 1: Using Built-in AirPlay

1. Enable AirPlay on Your Roku:

   • Go to Settings on your Roku device.
   • Navigate to System > Apple AirPlay and HomeKit.
   • Turn on AirPlay.

2. Mirror Your iPhone Screen:

   • Swipe down from the top-right corner of your iPhone screen to open Control Center.
   • Tap the Screen Mirroring button.
   • Select your Roku device from the list.
   • Enter the code displayed on your TV screen, if prompted.

Method 2: Using a Third-Party App (e.g., BJCast)

1. Download BJCast: Download BJCast from Google Play and install it on Roku TV.
2. Ensure that the TV and iPhone are connected to the same WiFi.
3. Open AirPlay on your iPhone and search for the TV name. Click on the link to cast the screen onto the TV.