gnome-bluetooth does not send or receive files

I tried to connect a Samsung Galaxy Trend GT-S7560, Android 4.0.4, kernel 3.0.8-1224927, to my laptop with gnome-bluetooth, it seems that it does not pair correctly.

It's not possible to send or receive files from the smartphone. When i try to send a file, i got this error in the send window:

GDBus.Error:org.openobex.Error.Failed: Unable to request session

With the bluetooth-sendto command:

** (bluetooth-sendto:7253): WARNING **: Couldn't register with accessibility bus: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.

** (bluetooth-sendto:7253): WARNING **: Obex Agent already setup on '/org/bluez/agent/sendto'

I don't know if the problem is with gnome-bluetooth or some obex librarie/package.

If I use Blueman, the bluetooth is out-of-box, it's easy to pair and send and receive files.

My device:

ID 13d3:3249 IMC Networks Internal Bluetooth

full hardware: http://pastebin.com/UEcx3ufE

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: gnome-bluetooth 3.8.2.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.12.0-7.15-generic 3.12.4
Uname: Linux 3.12.0-7-generic x86_64
ApportVersion: 2.12.7-0ubuntu3
Architecture: amd64
CasperVersion: 1.336ubuntu1
Date: Sun Dec 22 02:07:47 2013
LiveMediaBuild: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20131221)
ProcEnviron:
 LANGUAGE=en_US
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-bluetooth
UpgradeStatus: No upgrade log present (probably fresh install)