starting my iphone after restarting
i need your help to re start my iphone 4s, after i did a reset, and erasing all content, because now it keep asking me to provid my apple ID which i use to get into the shop and the icloud, but then it gives a messege that this ID cant open the device, what can i do , and i already removed it from find my Iphone,
thank you in advance
iPhone 4S, iOS 7.1.1