ONDA MW503HSA 3g usb modem not working, with "open blocked by driver for more than 7 seconds" warning

[Francesco Castellana]

The same 3g key worked in Natty and Maverick.
Only appearent difference in the syslog in Oneiric is the "open blocked by driver for more than 7 seconds!" warning.
Judging from a Fedora users' forum discussion it seems like it's the latest version of modemmanager causing this issue on similar hardware:
http://www.fedoraonline.it/modules/newbb/viewtopic.php?viewmode=flat&topic_id=16200&forum=41

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: modemmanager 0.5-1ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic i686
ApportVersion: 1.23-0ubuntu3
Architecture: i386
Date: Thu Oct 27 01:02:22 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
ProcEnviron:
 PATH=(custom, no user)
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
SourcePackage: modemmanager
UpgradeStatus: No upgrade log present (probably fresh install)

[Francesco Castellana (xfranky)]

Adding the syslog on natty for comparison

[madbiologist (me-again)]

Is this fixed in Ubuntu 14.04 "Trusty Tahr?

[Launchpad Janitor (janitor)]

[Expired for modemmanager (Ubuntu) because there has been no activity for 60 days.]