Netflix error UI-800-3: what it means and how to fix it
UI-800-3 is Netflix saying the copy of Netflix data stored on your device has gone bad. Netflix's own description is that information stored on the device needs to be refreshed or has become corrupted, so the app cannot proceed. It often appears with a longer number in brackets afterwards, which identifies the specific device or failure variant. Unlike the NW errors, this one is not about your network; it is about the app's local state, which is why the fixes all involve clearing, refreshing, or rebuilding that state.
What causes it
- Corrupted or stale data in the Netflix app's cache or storage on the device.
- A sign-in token or device registration that no longer matches what Netflix expects.
- An app that updated while its stored data stayed in an older shape.
- On some TVs and boxes, a device firmware issue interfering with the app's storage.
Fix it, in order
- Sign out of Netflix and sign back in. On the error screen there is usually a sign-out option; in the app it is under the profile or help menu. This refreshes the registration data behind many UI-800-3s and takes a minute.
- Restart the device fully. Power it completely off, unplug it for 30 seconds if it is a TV or box, then start it again and reopen Netflix.
- Clear the Netflix app's data or cache in the device's app settings. This removes the corrupted local state the error is complaining about. You will sign in again afterwards.
- Uninstall and reinstall the Netflix app if clearing data is not an option on your device or did not work. A fresh install rebuilds all local state from zero.
- Update the device's firmware or software. On smart TVs especially, Netflix's help points to system updates as the follow-up when the app-level fixes fail.
- Note the full code, including the bracketed number, before contacting Netflix support. That suffix tells them which variant you have.
Work from the least destructive fix upward. Signing out, restarting, clearing data, then reinstalling all attack the same corrupted state with increasing force. Jumping straight to a device factory reset is using a sledgehammer where Netflix's own steps usually suffice.
Common questions
What does the number in brackets after UI-800-3 mean? It is a subtype identifier that tells Netflix which device or which specific failure you hit. Support uses it to route you to the right fix. For your own troubleshooting it changes little: the refresh, restart, clear, and reinstall sequence covers the family.
Will clearing the app data delete my profile or watch history? No. Your profiles, lists, and viewing history live on your Netflix account, not in the app's local storage. Clearing data removes the device's cached state and signs you out; everything returns when you sign back in.
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