Part 5/10:
- Remember the anti-phishing words (e.g., "Arch" and "Feel") which serve as a checksum to verify your device hasn't been tampered with during setup.
6. Firmware Update via SD Card
Download the latest firmware from Cold Card’s site.
Copy the firmware file onto your SD card.
Insert the SD into the device, navigate to Advanced SL tools > Upgrade firmware, select the SD card, verify, and install.
The device reboots with the latest firmware, ensuring security and functionality enhancements.
Securing Your Seed & Backup Strategies
Steel Backup
Use products like Sore steel seed plates or etching tools to engrave your seed phrase into durable steel.
Store backups in separate, fireproof, waterproof locations to future-proof your holdings against disasters.