Karbonn has introduced the all new Quattro L55 HD smartphone in India. The handset was listed on the company’s site without any price and availability details. But since the phone is already unveiled, we are expecting the device will go on sale soon. The Karbonn Quattro L55 HD features  a 5.5-inch HD (720×1280 pixels) resolution IPS display. It is powered by 1.3GHz quad-core SoC …