Any time a checksum is invalid, alert the consumer that the phrase isn't some thing created by your application, and inquire when they wish to use it in any case. This way, your app only should keep the wordlists to your supported languages, however , you can recover phrases created https://thesocialvibes.com/story5116514/the-fact-about-bip39-seed-phrase-word-list-that-no-one-is-suggesting