HT4623 i download and install ios 7.0.4 on my iphone 4 , after restart phone , it show me an error about activation failed , what can i do?

i download and install ios 7.0.4 on my iphone 4 , after restart phone , it show me an error about activation failed , what can i do?

Hi forbiddenboy!
Here is an article for you that will help you troubleshoot iPhone activation issues:
iPhone: Troubleshooting activation issues
http://support.apple.com/kb/ts3424
Thanks for coming to the Apple Support Communities!
Regards,
Braden

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