If your PC with Windows will not see your SD card when you plug in your N7 or 4. Make sure you have MTP turned on in storage & you have turned off USB debugging under Developer options(this assumes you turned it on previously).
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If your PC with Windows will not see your SD card when you plug in your N7 or 4. Make sure you have MTP turned on in storage & you have turned off USB debugging under Developer options(this assumes you turned it on previously).