Grove Bluetooth problem

Hello everyone,

im working on some Bluetooth Grove device. Im working with seeedstudio mega shield. Im sending commands to the grove bluetooth and echoing in my arduino terminal. All seems ok, device starts (as a slave) inq and waiting for connections. On pc im using some bluetooth dongle (non uart bee) it found my device connects and pairing, but do not found any comm port service so i can’t get connection or do some terminal connection. what can i do? i tryed many many times. There is more commands? (ej. \r\n+INQ\r\n) this device can support AT commmands? this bluetooth device firmware can be changed? thanks for help!!