Hello users, My iPhone is factory unlocked. I have been using it for two years. Suddenly, it there service is gone, and I take my SIM card of and put it on again but still doesn't work. I got my brother's SIM card and tried it but it did not work either. After that, I got a message from apple...

Hello all, I'm a new member her, and I would like to be welcomed. Two days ago, my iPhone was running 5.0.1. However, I installed Timezone from Cydia. After that, it started to turn on and off by itself. I really could not do anything, so I had to restore it and update it. Now, after I update it...