Power & Login
Scramble Keypad (optional)
This feature helps protect from cameras and other observers by randomizing the numbers for entering the PIN on the display.
Steps:
Go to Settings
Select Scramble Keypad
Press OK
Your keypad will now be scrambled!
Disable USB (optional)
This is to operate your device in a complete airgapped manner in case you do not have a power-only USB cable, since the data communication from the Coldcard will be deactivated as soon as this function is enabled.
Steps:
Go to Settings
Select Disable USB
Idle Timeout (optional)
Once activated, this feature will turn off the Coldcard after a predefined amount of time has elapsed.
You can set it to different values between two minutes and eight hours, or disable the idle auto-logout function completely.
Steps:
Go to Settings
Select Idle Timeout
Select time
Default timeout period is 4 hours
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