Chosen Solution
I have an iphone4s jailbroken with ios 5.1.1 but i want to remove jailbreaking and update to ios 8 but when i heard the wifi grey issue then i choose to install ios 7.1.2 but some website of ipsw files show that apple no longer signing ios 7.1.2 but i want to install that ios
Not possible, just go to iOS 8 or give up.
