I ordered my new S5 online and after following the steps outlined in exact order, my old phone no longer works and the S5 will not authenticate. Now I have no phone and I am becoming frustrating.
It downloaded all my contacts, photo's with no problem. I called the number they gave me from my old phone and then turned it off. I then put the sim card in and charged the phone. I followed all the setup steps and no I cannot send any text or make any phone calls. I get a message that they cannot authenticate my phone to dial #8899 but get the same message.
