Why does a watch face dial appear totally black without displaying anything?
A9
Display of the phone battery level requires information from your phone, so the dial displaying it may go blank if communication with the phone is not possible. Also note that the CASIO MOMENT SETTER+ phone app must be installed on your phone to support this capability.
A compass dial will become blank if the watch has been exposed to strong magnetism. Calories burned information will not be displayed unless the "Save daily activity records" setting is enabled.
* Use of the CASIO MOMENT SETTER+ phone app is not supported with an iPhone.
