I have SM-N9005 variant and recently I updated to the latest android 4.4.2 leaked version with Odin, and then rooted with CF-Auto-Root.
After that, I lost the permission to write to external sdcard.
I searched and found this: http://forum.xda-developers.com/show...php?p=49603814
I backed up /system/etc/permissions/platform.xml and then I followed the instructions there.
After restart, a lot of app stopping messages showed and I had no access to file system or network anymore.
I used adb shell to restore the original platform.xml but it didn't helped in any way.
It seems that all mounts and networks are working, but none of the applications has permission to use any of them.
How do I resolve this, without wiping all my data?