Can someone please help, I have a Blackberry Torch 9800 and have had it for four months. Yesterday afternoon it stopped picking up mobile network and now I have the little SOS symbol where mobile network should be. I know the network isn't down as my partner is on Tesco and still has full signal. I have tried to turning connections on and off again and I regain signal for a minute and then it goes back to SOS mode. I have also rebooted and removed sim and battery and putting them back in but nothing is working. I would be very grateful if anyone could help me! Claire
Try resending your service books. From your homescreen, go to Options>Device>Advanced System Settings>Host Routing Table OR Options>Advanced Options>Host Routing Table, depending on what OS your phone uses. Once there, press the menu key and select Register Now.
I hope that helps you.
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