> For the complete documentation index, see [llms.txt](https://celopg.gitbook.io/tokenmanager/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://celopg.gitbook.io/tokenmanager/guides/l2-to-l1-migration.md).

# Flow 3: Migrate L2 Token to L1

Gives an existing Celo Native token an L1 counterpart on Ethereum, enabling bridging both ways.

## Steps

| Step | Action                                                                         | Chain    | Who signs    |
| ---- | ------------------------------------------------------------------------------ | -------- | ------------ |
| 1    | `L1TokenFactory.createToken()` — same name/symbol/decimals, `initialSupply: 0` | Ethereum | Anyone       |
| 2    | `L2SuperChainToken.setBridge(L2_BRIDGE)`                                       | Celo     | Token owner  |
| 3    | `L2SuperChainToken.setRemoteToken(L1_ADDRESS)`                                 | Celo     | Token owner  |
| 4    | (Optional) `L2StandardBridge.bridgeERC20To()` — burns on L2, mints on L1       | Celo     | Token holder |

## Contract calls

```solidity
function setBridge(address bridge_) external onlyOwner;          // Step 2
function setRemoteToken(address remoteToken_) external onlyOwner; // Step 3
```

{% hint style="warning" %}
**Irreversible**: once configured, bridge settings cannot be changed.
{% endhint %}

Notes: supply stays on L2 (L1 starts at 0); after migration, tokens bridge both L1→L2 and L2→L1.


---

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