The device, Samsung Tab S, can totally recognize the new SD card.
Various file managers can recognize the SD card, and report correct file
names and file sizes.
The PC Clone, using USB cable with correct Samsung USB drivers, can read
and write the SD Card.
The PC Clone, using WiFi, can read and write the SD Card with exception
of the large map files (mostly greater than 2 GB).
BCNAV can read and write the SD Card as I can create new map files.
BCVAV can read the SD Card for a display of old map files; sometimes the
map displays for as long as 20 seconds, but his is very rare.
Then some entity renames the old map file with .BACK or as .CORRUPT.
Rare, but sometimes I also have a problem with the files in the folder
Any other problems are well hidden.
Other users may have similar problems.
So the problem is: how to keep some entity from renaming the old map files.
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