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Error 21

Posted: Tue Dec 09, 2014 9:46 pm
by roundhillmark
Does anyone know what an error 21 means?
I start a restore image to a micro sd card, and it fails with an error code of 21, after that USBIT does not see the card anymore.
This has happened too two cards now.
I tried it with 1.66 and 1.70.

Could not write to usb device (code : 21)!
Please close all open explore windows for this device.
The device is not ready!