Hi! I see you’re getting the Tubi app error RO-3-201-5 on your iPhone with iOS 18.5, and you’ve already tried logging off, restarting, uninstalling, and reinstalling without success. Let’s dig a bit deeper to get this fixed.

This error often relates to streaming or content loading issues, sometimes linked to network, app permissions, or device caching.

Here’s what I suggest next:

1. Check Your Network Connection:
Make sure your iPhone is on a stable Wi-Fi or cellular data connection. Try switching between Wi-Fi and cellular to see if the issue persists.

2. Clear App Cache (via iPhone):
While iOS doesn’t have a direct cache clearing option, you can force quit the Tubi app and restart:
- Swipe up from the bottom then pause (or double press the Home button).
- Find the Tubi app and swipe it away to close it.
- Relaunch the app.

3. Check for iOS and App Updates:
- Go to the App Store, tap your profile icon, and check if there’s an update for Tubi.
- Also, check Settings > General > Software Update to ensure your iOS is fully updated beyond 18.5 if available.

4. Check Date & Time Settings:
Sometimes incorrect date/time settings can cause errors with streaming apps:
- Go to Settings > General > Date & Time and ensure “Set Automatically” is enabled.

5. Try Streaming Content via Browser:
If the app still errors out, open Safari and visit tubitv.com. Try playing the same content through the browser to see if it works without error. This can confirm whether the problem is app-specific.

6. Reauthorize DRM (Digital Rights Management):
RO-3-201-5 can sometimes be DRM related, blocking content playback due to licensing checks. While we can’t manually reauthorize DRM on iPhone, reinstalling app (which you’ve done) is the typical step.

7. Check for System Restrictions:
Ensure no VPN, proxy, or content restrictions are interfering:
- In Settings, check VPN under General > VPN & Device Management. Disable if active, then retry.
- Also, check Screen Time settings for content restrictions disabling streaming apps.

If all these steps don’t resolve it, there may be a server-side or account issue affecting your device specifically. I recommend contacting Tubi support directly at [email protected] with details including your device, OS, app version, and error code so they can investigate further.

Would you like me to help you walk through any of these steps in detail now? Are you able to test streaming via the browser yet?