What is the compatibility of the the CM-530 controller with the BT-410 slave module? I’m having the same exact connection issue whether I try with Windows PC, iPad or Samsung Galaxy Tab.
In order to connect BT-410 slave to PC, you need a BT-410 Dongle.
Other than that, BT-410 is compatible with iOS / Android devices.
Please make sure that your device is set as slave.
When reset, if you see "BTWIN MASTER MODE" it is set as Master, otherwise, it is a slave.