Iphone 4. version 7.1.2

Question

I have had my I-phone 4 for 4 years.
last week after the upgrade for IOS-7 i noticed that my WIFI button is grey and stopped working, so i decided to go to the Apple store, to check for solution.
I was there for approximately 10 minutes,then the employee decided it needs to be restored.
He restored it, then, while trying to activate it,I-tunes showed a 0xE8000004 Error, and we could not activate it.
The employee was sure its not Apple's fault and insisted that i must go to the phone carrier company, to activate my sim-card.
I did not believe that at first, but he was so convinced of his rightfulness that i decided to give it a chance.
So i drove from the apple store to my phone carrier location which is 25 minutes drive, just to tell me what i already knew.
it was not the sim-card issue, it was a software issue.
So i came back to the apple store,had to speak to several different people,they were nice, offered me the same iphone-4 for half price,but still... i was not happy, I walked in there with a well functioning phone, and there is no reason that I should pay for a new device when I dont even want a new device.
Long story short, I walked in apple with a grey button Wifi issue, and walked out without activated phone, and now i have no phone.
shame on apples policy.

Answer 1

Hello ahujasunil_01,
It sounds like you are trying to update your iPhone 4 over the air, rather than through iTunes but the connection is timing out when it tries to download. I would use the troubleshooting information in the following article to help you get that resolved, named:
Resolve issues with an over-the-air iOS update
If you get a message that "an error occurred downloading iOS," try again later. If the issue persists, try updating your device in another network or use iTunes to update your device. Learn more about iOS updates.
Thank you for using Apple Support Communities.
Regards,
Sterling