Questions by Ally2018-08-27
SD error no. 8020 on ND2901
Wouldn't read any of my SD or CF card all of a sudden. Already updated to latest version and ran a self test. Problem persists.
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Answer by NextoDI2018-08-27
The error code 8020 means directory structure of memory card or internal hard drive contains strange entry.
If that error happens for multiple cards, that means the internal hard drive is the problem.
Format the internal drive after backup the data to other drive.
Or try 'chkdsk' command if you using windows OS.
Please check below.
https://www.howtogeek.com/howto/windows-vista/guide-to-using-check-disk-in-windows-vista/

This can happen unsafe drive removal during PC connection, or virus.
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