Hi guys i have a k300 and i wanted to communicate with it through AT commands serailly, now the problem is that the responce is isnt working for me, i used puts, printf uart method to send the AT commands which works PERFECTLY, then i used the get statement to get the response OK, i even checked it on Proteus in which it sent AT and i wrote OK and if OK is received an LED is turned ON. But when i use it with my cell phone AT is sending and responce OK is comming back to microcontroller too but it doesnt read it or something and the LED doesnt turn ON. PLEASE guys help me out.