I have been having constant loss of service after updating my turbo with the advance calling update. the only way I get it back is by restarting, as soon as it goes to sleep it loses service again. Anyone else have this. All I got from the tech line was "when this happened on my iphone I had to do a factory reset, you should do that and sorry for your problems, happy holidays. I would prefer not doing this and spending hours reloading apps and setting etc. just to remove the update.