I updated my Galaxy Note N7000 with Jelly Bean 4.1.2 on 21st March, 2013.
My Memory card is Sandisk 32GB Class 4.

After my update I found my memory card continuously unmounting and mounting due to which my battery is draining away very fast.
If my phone is been charged or if I m using it, then nothing happens, but if it gets into idle mode then after very 2-3 mins memory card will unmount and mount.
This problem was not there before updating.

I tried removing memory card and re-inserted the same and restarted several times, but didn't worked.

Plz help me solve this problem.
Is it update issue or card issue or some app issue ??