Unlocked ATIV S (I8750) on AT&T - How To Activate?

[winutils]

I just received my ATIV S from Negri (took 2 days - no issues) and I have an AT&T Micro-SIM, however now I am stuck trying to activate it on AT&T. I had no problem before with other unlocked phones but AT&T claims the Ativ S (Samsung I8750) phone does not exist in their database so they cannot activate it on their network. I would appreciate anyone giving me an idea of how to proceed!

 

[Jnbs]

Since you are on contract you should register your previous phone and then insert the SIM card into the ATIV S then the system will recognize the phone automatically.. After that your service should work without problems (AT&T Rep here)..

 

[winutils]

That would be a great idea, however the old phone has a normal SIM and the ATIV S has a Micro SIM. I was hoping that there was an activation sequence (##...#) that would work. I was surprised that AT&T did not have the model in their DB considering it is already in Canada, eh.

 

[crystal_planet]

Actually I had the same problem with an unlocked HTC 8S on a carrier here in Canada. I tried to get it to work on line and no go, then I called tech support and said the 8S is not supported and there is nothing they could do. This was Telus, and I came from a Lumia 800, which uses the same sim card type.

Ironically, I had to go with the Ativ.

 

[Podunks]

Actually I had the same problem with an unlocked HTC 8S on a carrier here in Canada. I tried to get it to work on line and no go, then I called tech support and said the 8S is not supported and there is nothing they could do. This was Telus, and I came from a Lumia 800, which uses the same sim card type.

Ironically, I had to go with the Ativ.

How "unfortunate" for you...
If only that was a dilemma here in the states...

 

[crystal_planet]

How "unfortunate" for you...
If only that was a dilemma here in the states...

It was the only WinPhone 8 available on my carrier. Samsung is odd. The Ativ S is available on every nation wide carrier in Canada, but is absent in the entire US. I don't understand the reasoning.

 

[saket87]

Since you are on contract you should register your previous phone and then insert the SIM card into the ATIV S then the system will recognize the phone automatically.. After that your service should work without problems (AT&T Rep here)..

Hi
I am on the same boat too but I use a Lumia920 and have the same problem.
but I don't understand what registering is. I could try that.
I removed the sim today from 920 to ativ s, so don't know what to do
thanks

 

[Jourdansway]

My micro SIM card was actually punched out of a regular SIM card. The seller gave me the remaining piece. My samsung tablet does not show the balance so I was able to put the micro SIM back into the original, slide it into my phone and check the balance. A store that sells micro SIM cards probably has something you could use to do this.

 

[Coolknight1968]

You could let AT&T define your phone as a HTC 8X, might work.

 

[noelito]

I got my ativ s to work on at&t message me if you still need help

 

[Coolknight1968]

I got my ativ s to work on at&t message me if you still need help

Could you post how, so all users can read the procedure.

 

[noelito]

ok ill make a separate post