Modern life wouldn’t be quite so modern without NAND Flash memory. It is used everywhere - from USB sticks and smart phones to security cameras and the Internet of Things (IoT). I’ve spent some time reverse engineering the NAND flash memory used in popular POS (Point of Sale) devices. (Figure 1) Aside from sharing my findings from the evaluation of these devices, I wanted to share the process I followed to acquire the right firmware and to perform the reverse engineering
more here.............http://h30499.www3.hp.com/t5/HP-Security-Research-Blog/Reverse-Engineering-NAND-Flash-Memory-POS-device-case-study-part/ba-p/6581528#.U_ZZ4Pm-01g
more here.............http://h30499.www3.hp.com/t5/HP-Security-Research-Blog/Reverse-Engineering-NAND-Flash-Memory-POS-device-case-study-part/ba-p/6581528#.U_ZZ4Pm-01g