I get it whenever I reboot. It always takes about a minute for the '3G' display to appear and it is during that time I get the message. I assume the phone is trying to make its data calls but doesn't know it has no data connection yet?
i had that going for a while. Updated profile but kept getting the error. Called sprint and asked to be jumped straight to advanced because i called before with the same issue. They had me punch in the code (## whatever whatever #) and we reset the profile from there.
havent had the code since.
not sure if something had to be done on their end or not. if u know the code to open that menu from the dialer pad, i can tell u what i did. no phone data loss, only a lengthy reboot, but good to go.
I have the same problem ALL THE TIME at my office. But at home I never get the error message. So I decided to keep an eye on my phone for an enire day next to my desk. The error 67 only comes up when my 3G turns off and all i have is one or two bars. Almost every time my phone comes out of 3G, error 67 pops up, and never goes away until i go into airplane mode and then bring it back to life with 3G signal.
When I get home i have bot 3 bars of 4G and all 3G bars...i have NEVER gotton the error message at my house. Not sure if it has anythign to do with it or not. Just found it interesting. I also have "sprint only" for network usage in the settings and networks. No roaming.