HT202033: Get started with iPhone, iPad, and iPod touch
Learn about Get started with iPhone, iPad, and iPod touch
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Helpful answers
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Jan 7, 2016 4:09 PM in response to sor-jpgby ChitlinsCC,...
When trying to activate your iPhone, a message might say that your iPhone cannot be activated because the activation server is unavailable, the SIM card is unsupported, or activation couldn't be completed. Follow these steps.
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If you can't activate your iPhone - Apple Support
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Jan 7, 2016 5:42 PM in response to sor-jpgby Lawrence Finch,That message means one of the following:
- It really is unavailable. Rare, but it happens. You can check its status here: http://www.apple.com/support/systemstatus/
- Your antivirus or firewall is blocking access to gs.apple.com. Try disabling it.
- Your router's firewall is blocking access to gs.apple.com or to a port that it requires (443).
- Your phone is jailbroken, or it was at some time in the past.
- Your computer was used to hack or jailbreak some iOS device in the past (not necessarily the device with the current problem), and its network database was corrupted. Hacking includes using some questionable apps such as recboot, reiboot, Tinyumbrella, redsn0w, etc.
For the last possibility inspect your computer's hosts file. If there are any lines in the file that reference gs.apple.com that is the explanation. You will need to rebuild the hosts file.