Originally Posted by rvinny
That's good to know. I tried .266 and had some hissing on voice calls. Maybe AT&T's version will be better?
It doesn't work like that. Carriers only approve an OS release, so the .266 you tried earlier would be the same one that AT&T could approve. Therefore, nothing would be different.
I just checked the AT&T page on blackberry.com, but the old OS (.167) is the only one listed. Doesn't appear that a new one is available.