Lumi Support
How can we help?
Whether you need help installing the extension, loading subtitles, using AI, or syncing your account, start here or contact us directly.
Quick checks
Common questions and quick checks
Most temporary page-loading and network issues can be fixed with these quick checks.
01Reload the video page
After installing or updating Lumi, reload the current YouTube or Bilibili video page.
02Make sure Lumi is enabled
Open Chrome’s extensions page, confirm Lumi is enabled, and pin it to the browser toolbar.
03Check feature settings
For AI or translation issues, check that your model, API key, or Lumi AI token balance is available.
04Update to the latest version
Confirm you have the latest Lumi version from the Chrome Web Store, then try the video again.
Still stuck?
Open our WeChat support QR code and send us a clear description of the issue. We’ll use the details you provide to help investigate.
Please include
- Your browser name and version, plus the Lumi version
- The affected video URL and steps that trigger the issue
- The error message or a screenshot showing the problem
- Never send passwords, API keys, or other sensitive information