I reset the Sitecore Admin password from SQL using the below query:
UPDATE [aspnet_Membership] SET [Password]='qOvF8m8F2IcWMvfOBjJYHmfLABc=', [PasswordSalt]='OM5gu45RQuJ76itRvkSPFw==', [IsApproved] = '1', [IsLockedOut] = '0' WHERE UserId IN ( SELECT UserId FROM dbo.aspnet_Users WHERE UserName = 'sitecore\Admin' )
But now I'm geting this
error: invalid length for a base-64 char array or string, when I am trying to login.
This is Sitecore 9.