Can't open mobile storage

[maspai]

PointLinux in my netbook is already updated using Wheezy, Wheezy Updates and Backports repos as well. Recently I installed kernel 3.16.
I have also Lubuntu 14.04 in another partition (dual boot).
In PointLinux, I can't browse files in my mobile storage plugged in using USB cable. I can in Lubuntu.
I googled and found people talk about mtp, and both PointLinux and Lubuntu have same packages installed (libmtp9, etc).
I also installed gvfs and gvfs-backend, no avail.
Any help appreciated. Thanks.