South Korean tech firm Samsung has put plans for an in-glass sensor on hold, according to industry leaks.New images purportedly of the Galaxy S9 show the sensor returning to the rear of the device.The same report indicates that pilot production for the Galaxy S9 and S9 Plus kicked off in October. Mass production for the smartphones is tipped for December. One industry source said, “Samsung won't get rid of fingerprint sensors in its handsets, as there many services and platforms run based on the technology.”The Apple iPhone X was widely expected to be the first smartphone to adopt that sort of fingerprint scanner, but felt that it had a more secure solution with Face ID. The company is now planning to move away from fingerprint scanners altogether.The elimination of fingerprint scanners and move to facial scanning is a key selling point for Apple according to reports. Apple sees Face ID tech as being well ahead of what Android has to offer and helping to lure customers to its smartphones rather than the competition.