Start with the most common causes before resetting the wallet, restoring from a recovery phrase, or trusting a support message.
The user is confusing Envoy access, device PIN, passphrase, and recovery phrase
A restore used the wrong phrase, word order, language, passphrase context, or Bitcoin account path
Passport or Envoy was reset before backup readiness and pairing context were confirmed
A fake support page claims the wallet can be validated, synchronized, or recovered by entering seed words
Missing balances after restore are caused by account, address type, passphrase, firmware, or sync context
The recovery phrase may have been exposed through a website, chat, photo, or remote-access session