> For the complete documentation index, see [llms.txt](https://docs.fiammalabs.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.fiammalabs.io/our-product-suite/pragmatically-trustless-bitvm-bitcoin-bridge/user-guides/testnet-beta/copy-of-how-to-deposit-and-withdraw-on-fiamma-bridge.md).

# Copy of How to Deposit and Withdraw on Fiamma Bridge?

**Prerequisite**

To begin, you'll need two wallets that support EVM-compatible and BTC addresses, along with the corresponding test tokens.

* Bitcoin Signet
  * Wallet: [Unisat](https://unisat.io/), [OKX](https://web3.okx.com/), [Bitget](https://web3.bitget.com/en), [Xverse](https://www.xverse.app/)
  * Faucet: <https://signetfaucet.bublina.eu.org/>
* Ethereum Holesky Testnet
  * Wallet: [Metamask](https://metamask.io/) and others
  * Faucet: <https://www.holeskyfaucet.io/>

### How to Deposit

> Transfer sBTC from Signet to another chain (e.g., Ethereum Holesky).

1. Connect Bitcoin Wallet

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FFKTrH61OmXKu0qTFkgtp%2Fimage.png?alt=media&amp;token=633f2c9c-91ff-4a64-a1cb-b48b5222bf2f" alt=""><figcaption></figcaption></figure>

Please note that we only support Native Segwit and Taproot address types in beta-testnet.&#x20;

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FT0YmEvacZvhROZY8K9qj%2Fimg_v3_02gs_af43b911-befc-4d65-bcef-4367cc16f4hu.png?alt=media&amp;token=ce2c45bd-320e-4479-a814-768a5bff9892" alt=""><figcaption></figcaption></figure>

2. Connect EVM Wallet (Optional)

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FZyZWYxPC70BXh7jLi1Wd%2Fimage.png?alt=media&amp;token=a1bc402a-4578-4e5b-aa91-bb1b579ebae9" alt=""><figcaption></figcaption></figure>

3. Enter the recipient's address in the designated field.

> If you have connected to an EVM wallet, an autofill option will appear below the text field

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FDTJLbW0hfjUkn11EQ9st%2F%E6%88%AA%E5%B1%8F2025-05-21%2022.07.49.png?alt=media&amp;token=3c7c0a7f-84f1-4d18-a5b5-9c86957d4c83" alt=""><figcaption></figcaption></figure>

4. Enter deposit amount from `0.001` to `3 sBTC`&#x20;

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FMPtw6daymGWrjyDszWUu%2Fimage.png?alt=media&amp;token=a2093e4f-b209-4cb9-b472-d3c5599bbdfa" alt=""><figcaption></figcaption></figure>

5. Check the Deposit Summary pop up. Once confirmed, hit deposit to submit this transaction.

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FqMVUUcYAZtU939Oz18t9%2F%E6%88%AA%E5%B1%8F2025-05-21%2022.32.43.png?alt=media&amp;token=c51e7a46-d53e-4962-91b5-bf819df439bc" alt=""><figcaption></figcaption></figure>

6. Sign Deposit Transaction in your BTC wallet. You will also sign pre-sign Take Transactions simultaneously, which will be used to pay back to Operator when they finish Withdraw operation.

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2Ff34RYMwYM2FqZzGvi2Y6%2Fimage.png?alt=media&amp;token=5fe08f93-4937-4e85-b2f9-479c0b4c6435" alt=""><figcaption></figcaption></figure>

7. Your deposit has been submitted. You can then see the deposit progress in the new page.

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FUyAfHpi0uIJEt62NyZ2m%2F%E6%88%AA%E5%B1%8F2025-05-21%2022.40.01.png?alt=media&amp;token=bd60f363-4c27-45bc-90e0-a800dff0a420" alt=""><figcaption></figcaption></figure>

8. To see all transaction history, click on the account icon on the top right of the screen, and select bridge in the sub-menu.

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FpTgjEDBkSdje1WdHMT3L%2Fimage.png?alt=media&amp;token=6a2dbea6-a73a-42e5-9819-5aecd8aa7713" alt=""><figcaption></figcaption></figure>

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FVxcdBy0x9ETYSdUfuxi6%2Fimage.png?alt=media&amp;token=863893a2-defa-410e-b0ea-c7ddfe093f67" alt=""><figcaption></figcaption></figure>

8. Once the deposit is complete, check your bridged BTC (FiaBTC) on destination chain wallet.
   1. Import FiaBTC token for each destination chain. Enter the token contract address for each chain:

      1. Ethereum Holesky: `0xD32B4fB574a3cCEB3576350D8A0e9011507F79d2`
      2. BSC Testnet: `0x44F28b1dF5dE81D934272229498959A95d6a6264`
      3. Monad Testnet: `0x859fb36f3Fe7e22b37dd99b501f891377DdC9c33`
      4. Pharos Testnet: `0x40e75eF8Ea38A1e1362edD88234D327e14533992`
      5. Plume Testnet: `0xd922BB00C0f7F555655e7c9e38D70E5636e6C615`

      &#x20;

      <figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FlZwvGy802Qpm9B0Z0KIq%2Fimage.png?alt=media&amp;token=50dbf9c9-f5a0-481c-9988-64faa8a36868" alt=""><figcaption></figcaption></figure>
   2. Check the amount in your wallet.

<div data-full-width="false"><figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FaoCE4y3rSJESHEdePs9Q%2Fimage.png?alt=media&amp;token=685e486d-c799-44bd-9879-0803d14a75c3" alt="" width="375"><figcaption></figcaption></figure></div>

## How to Withdraw

1. Connect EVM-compatible wallets (e.g., Metamask)

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FZyZWYxPC70BXh7jLi1Wd%2Fimage.png?alt=media&amp;token=a1bc402a-4578-4e5b-aa91-bb1b579ebae9" alt=""><figcaption></figcaption></figure>

2. Fill out the recipient address on Bitcoin.

> If you have connected to a BTC wallet, an autofill option will appear below the text field

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2F9zcKwalcO0FIYbNHAo6t%2Fimage.png?alt=media&amp;token=91f2e94b-e132-429b-a2c5-393cb41dcbd0" alt="" width="375"><figcaption></figcaption></figure>

2. Enter Withdraw amount

* The bridge supports two modes: Express mode and Custom mode.
  * Express mode: Faster but with limited amount options. Pick the closest amount you entered to withdraw.
  * Custom mode: Withdraw any amount you entered.

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FUE8rh3uDcbYr2riISClz%2Fimage.png?alt=media&amp;token=dc466e23-62ad-4ff3-baf9-819d379fc5cd" alt="" width="375"><figcaption></figcaption></figure>

3. Check the Withdraw Summary pop up. Once confirmed, hit withdraw to submit this transaction.

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2F9D9KWM2oergtyMzYv7L0%2F%E6%88%AA%E5%B1%8F2025-05-21%2023.20.40.png?alt=media&amp;token=9ebf350a-214e-4ae4-8888-038b3aceaee2" alt=""><figcaption></figcaption></figure>

4. Sign Burn Transaction in your EVM wallet.

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FVqB1Es6OyDI1bx40Aquv%2F%E6%88%AA%E5%B1%8F2025-05-21%2023.22.31.png?alt=media&amp;token=8115f187-2b8f-4d4a-9d66-752d4a0d98e3" alt=""><figcaption></figcaption></figure>

5. You can also check the Withdraw status under bridge history.

> This process may take 10-20 minutes to be confirmed on the Signet.

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FuSMYfvphakhAtmIpcmu1%2F%E6%88%AA%E5%B1%8F2025-05-21%2023.25.12.png?alt=media&amp;token=70f9576a-5352-4cb7-a3af-6a8b91e41099" alt=""><figcaption></figcaption></figure>

* Click on one of the transactions to see detailed progress.

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FWTghSR0L8pjklxoSRUBy%2F%E6%88%AA%E5%B1%8F2025-05-21%2023.26.06.png?alt=media&amp;token=5bc86a77-e108-4dd5-acaf-cb2159be4153" alt=""><figcaption></figcaption></figure>