Abstract: The disclosure relates to a method, device and system for detecting a crack in a display of an electronic device. The method comprises: locating the electronic device in front of a reflective surface; aligning the electronic device to an alignment position relative to the reflective surface; generating an image on the display through instructions executed on a processor operating on the device; capturing a reflected image shown in the reflective surface of the image with a camera; processing the reflected image to identify a line in the image through instructions executed on the processor; and determining whether the line represents a crack in the display through instructions executed on the processor.

Abstract: The disclosure relates to a method, device and system for detecting a crack in a display of an electronic device. The method comprises: locating the electronic device in front of a reflective surface; aligning the electronic device to an alignment position relative to the reflective surface; generating an image on the display through instructions executed on a processor operating on the device; capturing a reflected image shown in the reflective surface of the image with a camera; processing the reflected image to identify a line in the image through instructions executed on the processor; and determining whether the line represents a crack in the display through instructions executed on the processor.

Abstract: System and method to enable access restriction to a recorded electronic conversation among a plurality of users, the method including: establishing an electronic conversation among at least a first subset of the plurality of users, the first subset comprising an initial membership of the electronic conversation; recording in a conversation history a change in membership of the electronic conversation; transmitting a notification to at least a portion of a current membership of the electronic conversation; associating the notification with membership of the electronic conversation existent at the time the notification is transmitted; recording the notification in the conversation history; relaying a message to at least a portion of a current membership of the electronic conversation; associating the message with membership of the electronic conversation existent at the time the message is relayed; and recording the message in the conversation history.