Your iPhone could not be activated because the activation server is temporarily unavailable, Your iPhone could not be activated because the activation server is temporarily unavailable

That's almost always caused by a phone that was hacked to unlock it from the original carrier.

Contact the carrier it is locked to and find out if it qualifies for a legitimate unlock.

emma2492 wrote:

Help what do I do ?

Possible causes:

1. Your antivirus is blocking access to gs.apple.com.

2. Your phone is jailbroken.

3. Your computer has been used at some time in the past to jaibreak some iOS device (not necessarily the phone with the problem), and its network database was corrupted by the hacking software that was used.

4. Apple's activation servers are down (very rare, and never for more than an hour or so).

For 1. try disabling your antivirus.

For 2. & 3. you need to go somewhere other than an apple forum for help. Although for 3. you can try deleting lines containing gs.apple.com from your "hosts" file on your computer.

Could you say more clearly about how to

deleting lines containing gs.apple.com from your "hosts" file on your computer

The hosts file contains overrides for IP address lookups when you go to a web site. To edit it you need Administrator privileges. For Windows you can use notepad (but not wordpad). For a Mac the best editor is nano, or vi if you know how to use it. You can use textedit, but that's trickier as you must change the default format to "unformatted". It's a hidden file, so you need to set up Windows Explorer or Mac Finder to show hidden files, or use the full pathname.

Windows: c:\windows\system32\drivers\etc\hosts

Mac: /etc/hosts

You need to use the sudo command to get admin privileges on a Mac:

sudo nano /etc/hosts

Once you have the file open you must delete any lines that contain gs.apple.com

Thanks. I have already deleted all related to gsp.apple.com but still fail activating. Do I miss anything?

Was your phone jailbroken or "unlocked" by someone other than the carrier it was originally locked to? If so, then all you missed was the fact that you can't get help here.