I have just installed IOS7 and it says your iPhone could not be activated because the activation server cannot be reached. Please help me

FINALLY IT WENT THROUGH, I AM HAPPY...........

JUST KEEP TRYING PEOPLE

Stop spamming that useless info everywhere.

I found a solution for this issue. You need to have a backup of your phone with versino 6.1.4.

1- Download 6.1.4 IPSW (you can google for it, it's easy to find)

2- Enter restore mode on your iPhone (Hold home button and plug in the thunderbolt connector)

3- Press the Restore software button while pressing Alt on your keyboard

4- Choose the IPSW that you downloaded before and let it restore

5- Restore your phone (after being on 6.1.4) to your backup in order to recover all of your settings/apps

6- Update to iOS7

This of course is only a solution for those who reset/had problems installing iOS. It also requires you to have a backup of your phone (if you don't, you really should have).

Hope this helps!

Millions of people are trying to get it, just it will take time ℹ

My phone was doing the same thing, so i turned it off and then turned it back on and tried it again. Then i plugged it back up to itunes and it worked.

That indeed *****! had the same issue and after an hour of retries and after mooving from my living room to my bedroom it solved... my suggestion: move to your bedroom ;/

I finally got it to work after the 100th attempt. The servers are just being slammed with everyone updating simulatenously. Just keep trying, and it will work sooner or later.