CabCard Go cannot be used when your device has Developer Options enabled. This is a security feature which protects cardholder data.

If this feature is highlighted, please navigate to the following from the home screen:

Settings → System → Developer Options → Toggle 'use developer options' to OFF

If 'Developer options' does not appear (usually at the bottom of the System menu), please search for it in the ‘Search’ bar of your devices' settings menu.