There should also be a file called KN7000mn.bak on your SD Card, which contains a copy of the KN7000mn.INF data.
I seem to remember that a long time ago, when the .inf file got corrupted on one of my SD cards, I just used Windows Explorer to delete the .inf file and renamed the .bak file to .inf - That fixed the problem.

However, before I did the operation, I used Windows Explorer to copy the 'PRIVATE' folder on the SD Card, to a folder on my PC hard drive, as a back-up - just in case
Might be worth a try............
_________________________
Willum

After silence, that which comes nearest to expressing the inexpressible is Music.
Aldous Huxley
( especially when the music is played on a KN7000....)