Hello
On my tablet Samsung Tab 2 10.1, I have a 32GB external sdcard
It is partitioned into 2 parts
Part 8GB and 24GB Part II
I use File Explorer ES3
I see the 16GB internal sdcard called O, which I can read and write
I see the external sdcard, the first sdcard1 part, which I can read and write
and the second part sdext2, on which I can read but not write.
Why? on sdext2, there are directories and files that have been created, I think, by the system (eg the app directory with all the apk.
Best regards