I use NOTE4 N910C with Android 6.0.1 PDA N910CXXU2DPE6, CSC N910COXA2DPE1 + TWRP + root, dated Wed, 11 May 2016. All works perfectly but in this version of firmware, root filesystem is mounted as read-only. Developer mode is turn on. I try to remount /system from console, from ES Explorer, from Root Explorer and so on. Nothing helps. Can anybody advice me how to make root filesys as R/W. Just for a while, to make some changes.

  • 1
    Have you tried from a shell (e.g. adb shell) with root access (su) to run mount -o remount,rw /system? Does it work, or give an error? In the latter case, which error exactly? "Nothing helps" is not very specific, as we don't know what happens unless you edit your question and include the errors you're seeing :)
    – Izzy
    Jun 20, 2016 at 15:46
  • Yes,. Of course I used mount -o remount,rw /system as su. The command was executed without any error but root filesys was still read only.
    – mackowiakp
    Jun 21, 2016 at 15:34
  • "No error but no effect" sounds strange. Not sure if that's some SELinux enforcement (or something comparable), but I'd expect an error if something doesn't work.
    – Izzy
    Jun 21, 2016 at 16:40
  • It was possible to access as R/W root files in ver 5.1.1 and in first version of in 6.0.1. After upgrade to new verion of 6.0.1 - R/W access is not possible. Terrible...
    – mackowiakp
    Jun 22, 2016 at 8:44

1 Answer 1


Finally I remount /system as R/W. The proper syntax of command is:

mount -o rw,remount /system


mount -o remount,rw /system

I really dont know why, but second syntax is executed without errors but /system is still read only. The first command works on NOTE 4 N910C correctly. Thats all, topic closed.

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