Android Question Newland N910 + N910 Base

[Saitama]

Hi experts,

Does anyone here have experience working with Newland based POS devices. Currently building android app to connect to N910 Base via Bluetooth and I'm able start a connection but when I try to send data to it, it does not show up on my laptop. For your information N910 also have a serial port in my case I used it to connect it to my laptop.

Just want to know the communication flow between N910 base build in Bluetooth module and its serial port.

Thanks