Q: my old iphone 3gs is not activating, says the server is unavailable

Contact your Carrier.

However...

This usually happens if the phone has been Hacked / Jailbroken / Modified...

Unauthorized modification of iOS

http://support.apple.com/kb/HT3743

If this is the case... Then... Sorry... But...

The discussion of Jailbroken Devices is against the Terms of Use of this Forum.

Your phone was hacked or jailbroken to unlock it. You're out of luck.  You can not get help here.

just had the same problem and I fixed my 3gs. You will need to reinstall 6.0. Just boot. This site is an Apple support and should let you talk about how to get back you original setting even if your device was jailbroken. It's not right.

<Email Edited by Host>

Apple is not responsible for the damage that the jailbreak does to

your iPhone nor can it offer a failsafe way to recover from the many

versions of jailbreak. Your beef is with the jailbreak developers, not

with Apple.