Getting your iPhone screen onto a Roku 4K can be kinda weird, but it’s doable. Been there, done that, and sometimes it feels like a game of patience. Basically, this turns your TV into a giant display for your photos, videos, or even presentations — if it works. Here’s what I found out works, how to set it up, and some tricks if you run into trouble.

Requirements

Make sure you’ve got these before jumping in:

Step 1: Set Up Your Roku 4K

Setup isn’t just plugging in and praying — well, kinda, but do these first:

  1. Plug the Roku into an HDMI port on your TV.
  2. Connect the Roku to power using the included brick (because of course, Windows has to make this harder than needed).
  3. Power on your TV and select the right HDMI input.
  4. Follow the on-screen prompts to connect the Roku to Wi-Fi. It’s pretty straightforward — select your Wi-Fi, enter password.
  5. Check for updates in Settings > System > System Update and run those. Old firmware can cause issues.

Step 2: Enable Screen Mirroring on Roku

This part is kinda the key. If it’s not enabled, your iPhone won’t see the Roku as an option:

  1. Go to Settings on the Roku home screen.
  2. Navigate to System.
  3. Select Screen Mirroring.
  4. Set Screen Mirroring Mode to Prompt or Always Allow. If you pick Prompt, you’ll get asked before anything shows up — good for testing, but annoying long-term.

Sometimes on some setups, this step doesn’t save right away or requires a reboot. Just restart your Roku if it’s not behaving.

Step 3: Access Screen Mirroring on Your iPhone

This is where it gets kinda hidden. The feature’s in the Control Center, so:

  1. Swipe down from the top-right corner of the iPhone to open Control Center.
  2. Tap the Screen Mirroring icon (looks like two overlapping rectangles).

Step 4: Connect Your iPhone to Roku

Now that you’re in, you should see your Roku listed:

  1. Select your Roku device from the list. If you don’t see it, double-check your device is on and connected to Wi-Fi.
  2. If a passcode pops up on your TV, enter that code on your iPhone. Not sure why it sometimes works or not, but worth trying.

On some setups, the device only shows up after opening the app again or restarting Wi-Fi on your iPhone. Sometimes a reboot of both devices is the only fix.

Step 5: Start Mirroring Your iPhone Screen

Once connected, your iPhone screen should be on the TV. To share stuff like videos or photos:

  1. Open an app like Photos or YouTube.
  2. Tap the AirPlay icon, which looks like a rectangle with a triangle at the bottom, usually in the share options.
  3. Select your Roku device from the list, and voilà — content is on the big screen.

Note that some apps have their own cast button, and sometimes you need to enable AirPlay sharing in the app’s settings — not always obvious.

Step 6: Stop Mirroring

Want your TV back? Just do the reverse:

  1. Open Control Center again.
  2. Tap Screen Mirroring.
  3. Pick Stop Mirroring.

Sometimes, if things get weird or the connection drops, turning off Wi-Fi and turning it back on, or rebooting the Roku, can help clear it up.

Step 7: Optional – Extending Display with a Mac

Bit of a rabbit hole, but technically, extending displays via Roku needs some workarounds — like streaming your Mac screen to Roku via Miracast or third-party apps. iPhones don’t support true display extension without extra hardware or software, so usually sticking to mirroring is easier. If you really need an extended display, exploring tools like Winhance might help, but it’s kinda overkill for most people.

Extra Tips & Common Issues

– Double-check both devices are on the same Wi-Fi and say “yes” to prompts on Roku. If not, it’s probably not gonna work.
– Restart your iPhone and Roku if the device isn’t appearing or the connection acts flaky. Nothing fancy, just simpler that way.
– If stuff keeps disconnecting, resetting your router can clear up weird network hiccups—because of course, Wi-Fi has to make it harder than necessary.

Conclusion

Following these steps, getting your iPhone 14/15/16 on a Roku 4K TV isn’t as impossible as it looks — just a bit fiddly sometimes. Once it’s set up, it makes sharing media way easier than plugging in HDMI or fussing with cables. Sometimes, Wi-Fi just decides to be annoying, but with patience, it works.

Frequently Asked Questions

Can I mirror my iPhone to other brands of Smart TVs?

Yep, many TVs from LG, Samsung, Sony, and others now support AirPlay, so you can mirror directly without a Roku. If your TV supports it, just turn on AirPlay in settings and notify your iPhone to connect.

What do I do if my Roku doesn’t show up in Screen Mirroring?

Make sure Screen Mirroring mode is enabled, and both devices are on the same Wi-Fi. Sometimes, a quick reboot of the Roku or Wi-Fi router helps re-scan.

Can I use my Roku for screen mirroring with Android devices?

Yeah, but the process varies. Android usually uses a feature called Google Cast or Miracast, so check if your device supports it and enable accordingly. But don’t expect a seamless experience every time.

Summary

Hopefully this shaves off a few hours for someone. Good luck, and may your screen stay mirrored without fuss. Worked for me — hope it works for you.

2025