Thread: Windows cannot detect internal and SD memory for Zumo 390LM

Originally Posted by FRCASTRO

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Did you hard-reset it (or better still, clear its nonvol memory)? ........... ====> Yes, using RMPrepUSM

RMPRepUSB is solely a re-formatting tool. It erases the visible file system but cannot "reset" the user data where some corruption might be present. Only a hard-reset or clear nonvol can do that. Many weird behaviors can be corrected by resetting. Read: [Only registered and activated users can see links. ] and [Only registered and activated users can see links. ]