hello there,

I purchase a Samsung GT-S5660 phone in China but, due to the limitation on the OS, I flashed my phone with firmware S5660DXKP6. After this flashing, my phone cannot connect to the mobile network. when I checked my phone, I can see that the menu "Mobile netowrks (Setting->Wireless and networks->Mobile networks) grayed out so that I cannot use this menu at all.

Is there any way I can fix this problem?

Baseband version: S5660DXKP6
Kernal version:
Android version: 2.3.4

I attach a screen capture from my phone for better explanation

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