Thank you VERY much for sharing this! I really appreciate you taking the time to detail this info. Were you able to make a connection with a carrier? May I ask how and where you taped the pins? A photo or two, if possible, would be even better! Thanks again, and I hope I can call on you if I need to. My EP-06 has been collecting dust, and the EC20 I am using cannot leverage LTE-A speeds.