> For the complete documentation index, see [llms.txt](https://docs.creditcoin.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.creditcoin.org/wallets/ledger-hardware-wallet/polkadot.js.org-substrate-portal.md).
# Polkadot.js.org Substrate Portal
After successfully completing the prerequisite setup phase, you can start using Polkadot.js.org Substrate Portal through Ledger
### Connect & Import
1. **Quit Ledger Live**.
2. **Plug Ledger** → **Unlock** → **Open the Polkadot app**
3. Navigate to the Polkadot.js In **Accounts** → click **From Ledger** (or **Import via Ledger**).
4. Upon clicking the **From Ledger** button, you will see the following screen
In the modal, set:
* **Account type** (top-level derivation; usually **0**)
* **Address index** (child index; usually **0**)
* **Name** your account → **Save**.
5. Upon clicking the **Save** button, the Device Selector will appear. Select your Ledger device and press **the Connect button.**
6. Allow the connection on your Ledger Device.
> **Notes on derivation:**
>
> * Ledger on Substrate = **ed25519** keys.
> * **Account type** groups (0..N). **The address index** enumerates addresses within that group.
> * The **address string changes by network** (SS58 format), but the underlying public key is the same.
### How to Transfer on Creditcoin network
1. **Unlock Ledger** → open the **Polkadot** app
2. In the portal, go to **Accounts → My accounts** → click the **paper-plane “Send”** icon next to your Ledger account
3. **From:** your Ledger account → **To:** paste/choose recipient.
4. **Amount:** enter value.
5. Click **Make Transfer** → **Sign and Submit** → review on the Ledger → **Approve**.
6. Track status in the UI or your block explorer.
The transfer has now been successfully completed.
