: Always store the 12-word backup password and the MicroSD card containing the .7z file in different physical locations.

: To use this file, you must have a new or wiped COLDCARD. Insert the MicroSD card containing the .7z file and navigate to Advanced > Backup > Restore Backup .

: During the initial backup creation, the device generates a unique 12-word backup password . This is not your 24-word seed phrase; it is a separate password required specifically to decrypt the .7z archive.

: You can use the Verify Backup option in the COLDCARD menu to perform a CRC32 check and ensure the file is not corrupted.

: If you need to view the contents on a computer, you can open it with standard tools like 7-Zip . Once decrypted using your 12-word backup password, it contains a simple text file with your wallet details. Critical Security Rules