Download Firmware Update

First download this apps

https://onedrive.live.com/?authkey=%...&action=locate

Or 

MediaFire Link 

Here

then transpar this apps internal memory on the phone

go samsung galaxy apps store

download ES File Explorer with your samsung store id use
install it
then click open
find this apps on internal memory u was transpar from pc
install it
then open it
u will see all account
search google
u will see here Google Account Manager
click this Google Account Manager

now u will find Google Account Manager under write like type email & password
click here
u have to see here up arrow mark Try
click here
u will see here retype password

click right top connar
see here have a option like Browser sin-in option
click here & type your won google id & complete sin-in
if u have sucsessfuly sin-in here

u have don bypass

u can now back from all option form phone & restart now

now u can done it