How to Wipe the Seed, and Restore SD Backup on ColdCard
World Crypto Network
World Crypto Network demonstrates ColdCard's complete offline seed recovery: destroy the master seed via Danger Zone, restore from encrypted 12-word SD backup never exposed to internet devices, then sign and broadcast transactions through Electrum without touching private keys to hot hardware. The design separates PIN encryption (device) from seed storage, keeps backups air-gapped even if stored o

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May 13, 2019