The instructed reset may delete all your necessary data. You can update your phone or make a hard reset by entering into DFU mode.
This mode allows you to update firmware and i OS without entering your Apple ID.
Follow the below instructions steps by steps to enter into DFU mode and reset your i Phone to Factory defaults without Apple ID.
Step 4: Then you need to press the Power button and Home button and hold them for 10 seconds.Step 5: You can now release the Power button when Apple logo disappears. You can now update your phone or make a simple reset from the following interface.Step 6: Release the Home button when i Tunes detects the i Phone in Recovery mode. Now you will be notified after the reset and your i Phone will take a restart.You will need to reset your i Phone without your Apple ID for different purposes like your forget your Apple ID, or you bought an i Phone outside the Apple store.But the bad news is that Apple links your i Phone, i Pad or i Pod touch with your Apple ID.
So that when someone steal your phone, the thief should not know your login details to turn off Find My i Phone feature or reset the phone to factory defaults.
Find My i Phone is a very important feature of i OS 7 but a bug in i OS 7 let you disable Find My i Phone feature. Still a user of i Phone finds another bug in i OS 7.1 that allow you to disable Find My i Phone in lot easier way.
But the i OS version lower that 7 are easily controlled for Find My i Phone feature.
They are more susceptible to jailbroken and have no complexity in resetting without an Apple ID.
You just need to follow the below instructions to reset your i Phone without an Apple ID.
One more thing that you need to remember is that make sure to keep a backup for your storage of your precious i Phone.