That's a common Ledger hiccup! First, make sure your Ledger Live app is completely closed, as it can sometimes interfere with browser connections. Then, try these steps: Ensure your Ledger device is unlocked and the Sui app is opened on it before you try to send funds. Try a different USB port or cable. Sometimes Brave's built-in shields or other extensions can block Ledger connections, so try temporarily disabling Brave shields for the site, or even try using a different browser like Chrome or Edge to rule out a browser-specific issue. Also, make sure your Ledger device's firmware, the Sui app on your Ledger, and your Sui wallet extension are all updated to their latest versions. You absolutely do not need your seed recovery phrase to reconnect your Ledger device. The seed phrase is only for restoring your wallet's private keys if you lose or reset your Ledger, or want to import them into another wallet. For connection issues, you only need the device itself, your PIN, and the correct app open on the Ledger.

You can try removing the Ledger from the Sui wallet app and then re-importing it. To do so, go to the Manage page in the Sui wallet app, select the Ledger account, click 'remove', and then reconnect by hitting the 'Add Account' button and selecting the Ledger option. You do not need the seed recovery phrase for this process. You will only require your Ledger device to reconnect it.

If you are unsure about removing the Ledger from the app, another option could be to reinstall the Sui wallet and follow the reconnection steps.