Unable to sign into google account

[AC Question]

I am using htc one v. At first when I got mobile, I had setup my primary google account. Few days back due to phone issues I had to factory reset. Then i am unable to sign into my primary account, I am 100% sure that i'm giving right password/username. Please let me know if there is a problem, or any setting changes I need to do.

 

[Rukbat]

Try Google Account Recovery