ITEAD BLE Shield won't respond

I’m trying to establish a serial connection between the ITEAD BLE Shield (http://wiki.iteadstudio.com/ITEAD_BLE_SHIELD) and my Arduino. I have the jumpers on the board set for rx=3, tx=4, and am using the following code:

#include <SoftwareSerial.h>

SoftwareSerial BLE_Shield = SoftwareSerial(3,4); //(rx, tx)

void setup() // Called only once per setup
{
  Serial.begin(9600);
  BLE_Shield.begin(9600);
}

void loop() // Continuous loop
{
  BLE_Shield.write("AT");
  
  delay(50);
  
  while(BLE_Shield.available() > 0)
  {
     Serial.write(BLE_Shield.read()); 
  }
  
  delay(500);
  
}

I get nothing back in the serial monitor at 9600. Anyone know what I’m missing?

I am having the same issue with no luck. Not much documentation online for the itead shield.