A. 1. Ensure that your phone's Bluetooth is turned on and that no other devices are connected that might interfere. 2. Move closer to the OMRON device to ensure a strong signal. 3. Check for any physical obstructions between the device and your phone that could affect connectivity.

B. 1. Try resetting the Bluetooth connection by turning Bluetooth off and on again on your phone. 2. If the problem continues, consider removing any other Bluetooth devices that may be connected to your phone to reduce interference.