How to solve error on updating ios 5.1.1 to ios 7.1.1 using iphone 4
Hi guys! I would like to ask if someone is having the same problem as mine, i was trying to update my iphone 4 ios 5.1.1 to 7.1.1 but when i tried to update it first using itunes on my computer it won't go through! I've tried every troubleshooting steps to solve a certain error and if i did another error will come up. By the way i am an I.T and working as a Technical Support LEVEL 2 so yes i know exactly what i'm doing. Then i tried to update my iphone 4 in its settings but still the error " ios 7.1.1 verification failed because you are no longer connected to the internet" and this just ****** me off. I realized that there are no possible option left for me to have my iphone 4 updated. Can somebody please help me on how i can update my ios to 7.1.1 without me bringing it to the apple service center?
PS. My phone is not jailbroken. Thank to you in advance!
iPhone 4, iOS 5.1.1