Hi guys. I've just unlocked my pearl 8100. I had at&t and then i switched to t-mobile. The phone works once in a while but when I lose a signal, my phone searches for the at&t network and I get a SOS error and i have to take the battery out and put it back in and wait. I've went to the mobile network settings and delted all the at&t networks from my preferred network list and set the detection method to manual. But i'm still getting SOS errors and when i go back to the mobile network settings it is back at at&t. How do i keep this from happening? I've already reset my blackberry, hard and soft, but the only thing that fix was showing my number in the phone screen.
Thanks in advance.
Thanks in advance.