CTMS checks are software updates for your Castle’s credit card reader. They are
required for FoodSpot and the Payment processor, Apriva, to initialize your reader.
You only have to manually do this once, after which updates will automatically be
pushed every night.
How to perform a CTMS Check
Rapidly tap the bottom third of the credit card reader screen 5 times.
A “Basic Information” screen should appear. Tap anywhere on the screen.
Type "1234" and tap “OK”
Tap “CTMS”
Tap "CTMS Check”
Tap “Yes"
Your device will perform the check and may reboot. Do not unplug your microstore during this process.