i m trying to active imessage in iphone 4 but it is not activate..
Try change your WiFi DNS to 184.108.40.206 and do the activation again.
So why would changing DNS to 220.127.116.11 help?
Helps if the iOS device cannot activate iMessage for some reason.
I've had difficulty updating 5.1 sometime ago and it'd helped not by using Google but by using OpenDNS.
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