Sierra Wireless HL78 dev kit hardware not responding

I am new in using the HL78 developmet kit and when i connect to test the AT commands via m-center tool getting as Hardware not responding.Not sure what is problem.

Will be great if someone could help on this.


How about enabling hardware flow control?
How about using other baud rate?

Is there anything on uart0?

I tried for different baud rates same behavior,Nothing on UartCapture1

+CGREG are unsolicited message from module, right?

yes it is from module,but still the status is not responding for any commands

probably the metal case is not properly covered?

Anything specifically to be triggered for any of the PIN??

UART1 TX RX CTX RTS should be related