Coldcard User Documentation
Hardware features including keypad and connectors.
Understanding the settings for your Coldcard.
Advanced Menu commands.
Upgrade to the latest firmware.
How Encrypted Backups work on the Coldcard.
How to install and use the command line (CLI) tools.
- Your can view and download the source code on Github.
- Long and detailed discussion of PIN codes and the security element that holds the real secrets.
- Details of our encrypted backup files.
- Documented limitations, policy choices, and TODO items.
- Importing seed words into Electrum for funds recovery and other tips.
- How to use with Bitcoin Core.
- How developers can modify Coldcard to extend it.
- Memory map highlights