> For the complete documentation index, see [llms.txt](https://docs.kerberus.com/kerberus/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.kerberus.com/kerberus/frequently-asked-questions/lifetime-license-nft-faq/how-do-i-activate-it.md).

# How do I activate it?

1. [**Install Sentinel3 in your browser**](/kerberus/sentinel3/installation.md)
2. Click on the Sentinel3 extension
3. Click on the Settings icon
4. Click on “App Info”
5. Click on “Migrate from Legacy”
6. Click on "Migrate Using Sentinel3 NFT"
7. Connect the wallet holding the lifetime NFT and perform an authentication PersonalSign signature to verify ownership

*(click* [***here***](https://i.ibb.co/NWF2xbk/Clean-Shot-2024-11-19-at-16-39-42.gif) *for video instructions)*

<figure><img src="https://i.ibb.co/NWF2xbk/Clean-Shot-2024-11-19-at-16-39-42.gif" alt=""><figcaption></figcaption></figure>