Hey everyone!
All users who Update or Restore their iPhone 4 are facing same problem.
Recently Apple is busy with iPhone 6 and 6 Plus and iOS 8's bug,
It seems like Apple is ignoring these issues or bug and not helping their customers.
So lets try these...to request Apple to fix this bug and release 7.1.3
Evreyone having this problem Please go to this link,
https://www.apple.com/feedback/iphone.html
Enter your Name and email address,
Sub: After restoring 7.1.2 Celluler and Wi-Fi disabled and iTunes can't activate the iPhone 4
Feedback type: Bug Report
Select your iOS Version and Computer's OS
then in the Comments box
tell the problem you are facing...
I write these.
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(1 week ago I update my iPhone 4 GSM from iTunes and when trying to activate it, I get the message (Error 0xE80000004).
I can not activate my iPhone 4 using cellular or wifi connection because iPhone asks me directly connect to iTunes.
I have restored my iPhone 4 from several PCs and always I get the same error when trying to activate it.
For several days many many iPhone 4 users are having this error when trying to update or restore to 7.1.2 .
I think iOS 7.1.2 disabled the Cellular ann wifi, and its a bug, and you must have to fix it.
Cause if the phone is not activated then its nothing but a peper weight.
Please, fix this bug and release iOS 7.1.3)
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Then Click "Submit Feedback" Button to send feedback.
Hope and wait for the iOS 7.1.3