My ZTE z982 won't allow me log in my gmail

[tfarohun]

My ZTE z982 won't allow me log in my Gmail on the phone and remove the previous one

 

[rgd1101]

MERGED QUESTION
Question from tfarohun : "My ZTE z982 won't allow me log in my gmail"

I want to remove the formal Gmail account. On my ZTE z982 and put another but it not going it will tell me to put the previous account

 

[rgd1101]

Put in the previous account
or read this http://www.tomsguide.com/forum/id-2317969/read-passwords-lock-codes-pin-numbers.html