The mnemonic is an important backup method for your Hardware Wallet account. The mnemonic can be used to restore your account even if your Hardware Wallet is lost.
If you feel that your current mnemonic is not secure and want to replace it, please make sure to:
1. Make sure all digital assets in your wallet have been transferred out.
2. Reset your hardware wallet.
3. Reset your hardware wallet and write down the new mnemonic.