After Factory Reset, In order to use Play store and Gmail I want to setup Google account on Samsung GT-S6802. When I tries to setup Google Account, In-spite of right user-name and password, following window appearers:
When I open gmail form browser, I've mail from google subject:
Sign-in attempt prevented and says:
Someone just tried to sign in to your Google Account
firstname.lastname@example.org from an app that doesn't meet modern security standards.
When I review, it shows unknown device but on browser it detects my device.
So, How do I face this issue and setup google account?