I've discovered where the problem comes from: some devices are unable to respond to open request in rapid succession after the SDP scanning. You need to close SDP session and wait 2 seconds before connecting to rfcomm, like the attached patch.
** Patch added: "sdp.diff" https://bugs.launchpad.net/ubuntu/+source/gnome-bluetooth/+bug/872044/+attachment/2606675/+files/sdp.diff -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/872044 Title: Bluetooth 'Send files' returns permission denied error To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-bluetooth/+bug/872044/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
