my iphone couldn't be activated because the activation server can't be reached .... how can i solve this problem ??

Some things you can try. Do you have access to another WiFi network where you can try? That has worked for several people.

Try a restart.

Restart your iPhone   *

Restart your iPad.   *

Try a forced restart. See the section towards the end of the article.

Reset Device. -

If necessary

Hard reset.     -

soaadfawaz wrote:

i can't solve this problem from the phone or itunes

If you can't activate your iPhone or iPad (Wi-Fi + Cellular) - Apple Support