Part 3/8:
For example, your device might display version 1.3.1, while the latest available firmware (as per coldcard.com documentation) could be 1.3.4. If your version is outdated, proceed with the update.
Preparing for the Firmware Update
To ensure a smooth upgrade, gather the following:
A micro SD card formatted appropriately.
A USB cable to connect your device to a computer.
Access to the official Cold Card firmware update page at coldcard.com.
Downloading the Firmware
Visit coldcard.com and navigate to Docs > Upgrading Firmware.
Find and download the latest firmware file (often with a
.dfuextension) matching your device model.Save this file to your micro SD card.