Ledger Bip39 Passphrase Default quantity of iterations used in wallets is 2048. Growing this range should make it more secure towards brute drive assaults, nevertheless you'll have to store this value. To access your wallet with personalized PBKDF2 you must use this script (or similar) to work out your BIP39 https://digibookmarks.com/story18703201/bip39-ian-coleman-indicators-on-seed-phrase-generator-you-should-know