i cant actviton my iphone 4s after restor

Read here: If you can't activate your iPhone, iPad, or iPod touch after installing iOS 9.3 - Apple Support

Seems like Apple has temporary troubles with their activation servers. Lots of users report similar issue on older devices.

https://support.apple.com/en-us/HT206203

If you are the original owner and you are sure it is correct id take your device and documents confirming the ownership to the Apple Store or contact Apple.

You may also try troubleshooting steps here: If you can't activate your iPhone, iPad, or iPod touch after installing iOS 9.3 - Apple Support

Recent info : If you can't activate your iPhone, iPad, or iPod touch after installing iOS 9.3 - Apple Support

http://www.imore.com/apple-working-ios-93-fix-older-iphone-ipad?utm_medium=slide r&utm_campaign=navigation&utm_source=im

Hoppefully Apple will shed the light on it soon.