| Problem | Likely Cause | Solution | |---|---|---| | "Failed to load wallet" | Corrupted wallet.dat | Restore from latest backup | | Wallet loads but balance missing | Outdated backup | Rescan: -rescan or -reindex | | "Keypool exhausted" | Too many unused addresses generated | Backup after generating new addresses | | Cannot unlock (wrong password) | Typo or lost passphrase | – funds lost permanently | | wallet.dat is zero bytes | Disk full or crash during write | Recover from backup |
There is no "forgot password" feature; if an encrypted wallet's passphrase is lost, the funds are permanently inaccessible. Bitcoin Core Wallet.dat
To create a descriptor wallet:
To understand wallet.dat , you must first understand the difference between a "wallet" and a "wallet file." | Problem | Likely Cause | Solution |