If I use this app to disable LTE and use only 3G by selecting "EVDO only", I can receive text messages but I can't send them. If I try to send one, I immediately get a "message not sent" error. When I reenable LTE, I can send messages fine. Is this a known problem? On HashCode's CM9 port I can send/receive SMS messages just fine on 3G. Is there a workaround for this?