Iphone 3/3GS after restore no service or searching solution

Iphone 3/3GS after restore no service or searching solution

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i had 3-4 iphones 3GS and after i upgrade them to 5.1.1 i had no service or Searching... i do this and now phones work now very nice

1st option for 3GS :

1000% Unlock 3gs iPhone On iOS 5.1.1

or

2nd

1. Downgrade to 4.1 version
2. Jailbrake whit redsn0w_win_0.9.14b1
3. Add repo666.ultrasn0w.com
4. Run Ultrasn0w
5. Restart ur iphone once ( turn it OFF and ON )
6. Enjoy ur iphone jailbroken and unlocked