> For the complete documentation index, see [llms.txt](https://docs.sia.tech/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sia.tech/legacy/forks/so-you-didnt-update-in-time.md). # So, you didn't update in time for the fork ...and now you have to resync your Sia wallet. ![](https://1359353245-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FV2BVjqEgmmTvw2IQruD8%2Fuploads%2Fgit-blob-7213ac9e841c056ddd4b9547191f711245ef14ab%2Fcap.jpg?alt=media) On February 3rd, 2021 at block 298,000, [the Sia network hardforked](/legacy/forks/navigating-the-2021-sia-hardfork.md) to implement the Sia Foundation: a new non-profit entity that builds and supports distributed cloud storage infrastructure, with a specific focus on the Sia storage platform. It's a great thing! But here you are, and you didn't update in time. Maybe you never even updated from the 2018 fork! You can't rent storage space, host, or send SC to friends or exchanges. For most people who updated ahead of time, it was a simple matter of [downloading the latest version and installing it](/legacy/your-sia-wallet/sia-ui-faqs/how-to-download-and-install-sia-ui.md). Not you though, something went (or is going) wrong. It might be that: * Sia is not syncing * Sia is not forming contracts * Your transactions are not broadcasting * Your transactions are broadcasting, but are not being received at your destination * Sia says you are not up to date * Sia says you are up to date, but you know you're not (sometimes happens with very old versions when checking via the siac `update` command) Many of these issues can manifest when you're [on the wrong chain](/legacy/forks/using-the-wrong-chain-after-a-fork.md). ## How to resync You're on the wrong Sia chain if you're not on 1.5.4 or later. Type `./siac version` in your CLI, or use the ⓘ in the top nav bar of Sia-UI to check. The most effective way to resync is to perform a clean install. The process requires: * your Sia seed * deleting the Sia data folders * deleting and re-downloading Sia * setting Sia up again with your Sia seed {% hint style="info" %} After restoring Sia from your seed and resyncing, it might take your balance up to an hour to re-appear in the wallet as Sia performs more actions in the background. {% endhint %} It's a bit of a long process, mostly because Sia will re-download the consensus blockchain file. But resyncing is something you'll need to do anyway, and a clean install works 100% of the time. Use [this guide](/legacy/your-sia-wallet/sia-ui-faqs/how-to-perform-a-clean-install-in-sia-ui.md) for a detailed walkthrough of these steps. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation by asking a question. Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters: ``` GET https://docs.sia.tech/legacy/forks/so-you-didnt-update-in-time.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.