The iPhone 6S will include a screen-based front flash mode, 9to5Mac reports. The article also bolsters claims of a report from last month that the camera will be upgraded to 12MP and support 4K video recording. Apple is expected to move from its current 8-megapixel sensor design to a custom 12-megapixel image sensor in both the iPhone 6S and iPhone 6S Plus, along with an upgraded image signal processor that will be built into the new A9 system-on-a-chip.…
