By default the USB port (Type B) is disabled on this model. To enable the USB port on the Sharp BP-50C26, you enter simulation (service) mode and switch it on. Here are the exact steps.
How to enable the USB port on the Sharp BP-50C26
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By default the USB port (Type B) is disabled on these models. To enable the USB port on the Sharp BP-20M22, BP-20M24, BP-20M28 and BP-20M31, you enter simulation (service) mode and switch it on. Here are the exact steps.
How to enable the USB port...