In-app L2 to L1

Withdraw funds from Loopring Layer 2 to Ethereum Layer 1 in-app

A. Open the Loopring Smart Wallet app

With the app open:

1. Tap Loopring L2

2. Tap Send

3. Tap To My Ethereum L1 Account

B. Set the withdrawal token and amount

While on the L2 Send screen:

1. Enter the token to withdraw to your L1 account. Tap to select from a list of available tokens in your L2 balance.
2. Enter the amount of tokens to withdraw to your L1 account. To withdraw all of the tokens, simply tap All.

3. Confirm the details one more time. When you are ready to proceed, tap Next.

C. Submit a Token Approval (token’s first-time only)

You will only see this next screen if it is the first time depositing or withdrawing the token from your L2 to L1. If it appears, tap Confirm to submit a Token Approval transaction.

The Token Approval requires a gas fee; this fee will be shown on the screen.

After submitting, you can check the status of the Token Approval by opening your Transaction History, tapping the transaction, and then tapping the TxID link. Once the process is complete, the Etherscan status will show as Success. You can then restart the steps to withdraw.

D. Verify the gas fee payment preferences

The Loopring Wallet will use your token order located in Settings > Fee Preference when determining the token used for paying fees. You have the option to change the token on the Confirmation screen.

Ensure you have more than enough tokens in your balance to pay the fee or the remainder needed may be taken from the other layer’s balance.

1. Tap Change

2. If needed, change the Layer the token will be paid from

3. Tap the token used to pay the gas fee

4. If needed, change the transaction speed (this will also change the amount needed for the gas fee)

   • Slower is usually cheaper, while faster is usually more expensive

5. Tap Confirm when you are ready to proceed

E. Confirm the Move

While on the Confirm the Move screen, please review the following:

1. The token and amount withdrawn

2. The From and To fields

   • From should contain My Loopring Account

   • To should contain My Ethereum Account

3. Fee preference and amount

As a reminder, transactions on the blockchain are final. After reviewing the information above, tap Confirm to submit the transaction.

Congratulations! You’ve successfully completed and submitted a Loopring Layer 2 withdrawal back to your own Loopring Layer 1 wallet.