Dear all, I have a 3GS running 4.2.1, I'm running Windows XP SP3 I've restored the unit. I've also cheacked fallowing things:
I've used RC5 and the phone gets jailbroken and boot the first time. When the device reboot and start up there it is still on Itune screen. I've tried to put in a SIM and connect to Itune, but with out luck.
I've done the process several times with same result. Also tried an other XP computer.
Any one got an idea?
Ah... if you upgraded your 3GS to 4.2.1 at this point, you have had your baseband (aka "modem firmware") upgraded to 05.15.04 and you have lost your unlock.
You now have two choices:
WARNING!!! There are currently risks to updating to the 06.15.00 baseband:
If you really need your phone unlocked and okay with taking the above risks, you can follow one of the guides below:
i've found the solution.....
you have 2 activate your 4n......please refer this tutorial....
after doing this if u have a "network" problem plz refer this tutorial...
(this is 100% work)