Factory reset, cannot reload Google paly
You have to remove two step verification of your gmail account.
to do so,

In “Signing in &amp; security” section of My Account, select 2-Step Verification. Sign in with your username, password, and verification code if asked.
Select Turn off 2-Step Verification.
A pop-up window will appear to confirm that you want to turn off 2-Step Verification. Select Ok.