I have not had any problem with mine and I have the sprint con mngr the only problem i encounter is when i pull the cable out before i disconnect and all you do is power off the device and turn it back on. that may be a solution for your prob. now does anyone have a prob with using it as a modem and using the bluetooth to talk at the same time? this seems to lock up everything: computer 7130 and headset. I was told that there were probs with the 7130 modem features that may be encountered by a rep at sprint.