Memory card not deteced by mobile or computer.

Memory Cards Mobile memory, professional cards and all other st
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Hi there, I solved this problem by buying a card reader that has it’s own power supply. Now I never have this problem. The power supply from a laptop or other mobile devices just isn’t sufficient and eventually my computer would stop detecting all of my CF cards. It is a drag to carry around more cables and devices, but not as much as waiting for the computer to recognize the CF or the external hard drive.