1/ if icloud imei done, then you have to log in with your apple id, otherwise in the future you will be face problem relock issue imei .
2/after this icloud imei done we will wait 72h for your complain
3/after 72h we can't take any complain
4/ if you want to your own safety you have to must be log in apple id
5/ the naughty people won't be able to play any games with you