WIFI shield (S2W-M02) "wifi shield not present"

Unfortunately I can’t buy the arduino wifi shield, in local market there are two wifi shields avaliable this one (S2W-M02) I have its manual and second option was CC3000 wifi shield.
I purchased this one (Pics attached) and now I am unable to interface it with arduino Mega 2560 R3, on uploading “ScanNetworks” or Connection example it simply prints “Wifi shield not present”.

Any suggestions ???

That is not the wifi shield or the IC that is compatible with the wifi library. It appears to require a RS232 or serial interface and uses AT commands rather than the SPI bus like the wifi library requires.

By using AT commands still unable to operate this module. Anyways thanks for the hint.