Here are some quotes I found from people with same issue:
The only thing I can say is that usually when this error occurs it's because the SIM isn't 64k or above which is required for GSM 3G operationI was curious has anoyne tried changing there prefered network list and or adding one????Here is another thread that people are having same issue: http://www.blackberryos.com/forums/9...available.htmlTmobile is calling it hardware and RIM is calling it a network issue
Some people suggest taking battery out for a few minutes, then let it reboot and it should work. Based on my research from today...I believe it to be a RIM issue with phones not being compatible with networks???? This is sad. I hope they resolve it soon.
Just curious is there any updates for BBM yet for the 5.0 OS? I kept getting an update needed for my bbm earlier today that there was a newer version but when I tried to it kept giving me errors so I was just wondering.
same "No Circuit/ Channel available" ive tried everything!!!