> For the complete documentation index, see [llms.txt](https://help.keyring.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.keyring.app/jp/keyring-smart-decard/rescue-your-decard.md).

# DeCardの復旧方法

パスキーを変更した場合や紛失した場合、またはAndroidとiOSデバイス間で切り替えた場合、通常通りKEYRING DeCardウォレットにアクセスできなくなることがあります。

ウォレットへのアクセスを取り戻すには、以下の手順を実行してください：

1. **お問い合わせ**\
   <info@bacoor.co> へメールを送信してください。
2. **詳細な指示を受け取る**\
   ウォレットへのアクセス回復方法についての詳細な指示をお送りします。

これで、ウォレットへのアクセスを再取得することができます！

<figure><img src="/files/RZHQb0gV5m87DCNSfmCd" alt=""><figcaption></figcaption></figure>


---

# 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 dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://help.keyring.app/jp/keyring-smart-decard/rescue-your-decard.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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.
