In my Galaxy SII there was everything ok for three years. All this time I used an external 64Gb SanDisk card.
Now after some uptime the card is remounted as RO. All the modifying operations on the card seem to be succeed but after reboot I see all the directories and files still there in an old state.
I didn't notice when this is happening exactly, but suspect that this behaviour appears after I run newly updated version of OsmAnd+.
Any thoughts?