Hey guys I wanted to reach out to the forums and see if I could get some answers. I am receiving a error code when sending out sms messages sometimes example: CAUSE CODE: 64 ERROR CLASS:2 I also unlock my Evo at times and I will see a error code 104. Ecample: Data call failure unable to connect error code 104. I called Sprint they made me pull my battery and update my profile. I haven't seen the error message for sms but, I am still noticing the error code 104 at times when I unlock the screen. Any ideas?