# Page Not Found

The URL `faq/firmware-update/upgrading-original-isg-display-to-support-ha-to-the-latest-version` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [Upgrading Original iSG Display to Support HA to the Latest Version](https://kb.linknlink.com/isg/faq/updating-related/upgrading-original-isg-display-to-support-ha-to-the-latest-version.md)
- [How to upgrade iSG to support HA to the latest version? 【update 05/08/2025】](https://kb.linknlink.com/isg/faq/updating-related/how-to-upgrade-isg-to-support-ha-to-the-latest-version-update-05-08-2025.md)
- [How to use Opera to Update firmware?](https://kb.linknlink.com/isg/faq/updating-related/how-to-use-opera-to-update-firmware.md)
- [How to use USB drive to Update iSG firmware?](https://kb.linknlink.com/isg/faq/updating-related/how-to-use-usb-drive-to-update-isg-firmware.md)
- [iSG MAX with the error message "Failed to get device license information"?](https://kb.linknlink.com/isg/faq/updating-related/isg-max-with-the-error-message-failed-to-get-device-license-information.md)

## How to find the correct page

If the exact page cannot be found, you can still retrieve the information using the documentation query interface.

### Option 1 — Ask a question (recommended)

Perform an HTTP GET request on the documentation index with the `ask` parameter:

```
GET https://kb.linknlink.com/isg/faq/updating-related/upgrading-original-isg-display-to-support-ha-to-the-latest-version.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

### Option 2 — Browse the documentation index

Full index: https://kb.linknlink.com/isg/sitemap.md

Use this to discover valid page paths or navigate the documentation structure.

### Option 3 — Retrieve the full documentation corpus

Full export: https://kb.linknlink.com/isg/llms-full.txt

Use this to access all content at once and perform your own parsing or retrieval. It will be more expensive.

## Tips for requesting documentation

Prefer `.md` URLs for structured content, append `.md` to URLs (e.g., `/isg/faq/updating-related/upgrading-original-isg-display-to-support-ha-to-the-latest-version.md`).

You may also use `Accept: text/markdown` header for content negotiation.