To begin, log in to Fireblocks. Launch the 'Fireblocks Recovery Utility' application and choose 'Use the Recovery Tool.'
In the 'Recovery Workspace,' select 'Recover Private Keys' to continue. On the 'Recover' tab, drag the downloaded ZIP file into the 'Recovery Kit' area, then place the PEM file (fb-private-key.pem) into the 'Recovery Private Key' section.
Input your Mobile App Recovery Passphrase and click 'Recover' to finish the process. Check the box that says 'I want to recover my private key,' then confirm to move forward. Next, go to the 'Extended Keys' tab, where you can see both the public and private keys.