Hi,
If you suspect that your phone is not genuine, you can try to perform a software repair on the phone via PC Companion (this will only work for a genuine phone).
In PC Companion you press start on Support Zone > Start on Update the phone/tablet software > Repair phone/tablet (the blue clickable link in the message) > Follow these steps without having your device connected to the PC.
Follow the instruction that appears in the program and do not connect your device until this guide tells you how to connect it.
