scammer alert，told me i scam him for selling him bypass model ipad，i used this for half，icloud sign in，after sell to this guy he said the pad is bypass for no evidence ，the ipad i sold have the sticker outside，i used that ipad for more than 6month with my apple id login and playing pubg mb with it after selling this guy for one week the ipad that i used for long time become a problem model？？？？