Hi, I had been using a Tmobile compatible phone with my Straight Talk account and do not use autofill. In December I bought a Straight Talk Nokia E5 bundled with a 45 dollar card and transferred the Sim from the Tmobile phone to this Nokia E5 and it worked well,
Now I bought a Samsung T 5280G phone bundled with a 45 dollar card and took out the Sim from my Noka F5 and put it in this Samsung T 5280G phone but now the phone does not work and the message I get is Sim Lock Code 1
Why does the Sim not work with this Straigt Talk phone and works with the Tmobile compatible and the Nokia E5 Straight Talk phones.
Spoke with the tech dept but they had no satisfactory answer