error 0xe800004 iphone 4

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Two days ago I restore 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 wifi connection because asks me directly connect to iTunes and after displaying the error is not active and does not let me do anything.
I have restored my iPhone 4 from several PCs and always I get the same error when trying to activate it.
Can anyone help me please?