A waterproof case for an electronic device includes a case portion configured to house an electronic device including a touch panel display, and an operation mechanism provided to the case portion and configured to operate the touch panel display of the electronic device, which is housed in the case portion, from an outside of the case portion. A method includes writing an indication of a first error rate of a first set of bits to the non-volatile memory. In another embodiment according to the invention, there is disclosed a method for applying a personalized image to a financial account access means corresponding to a financial account of a customer.