Looking for logging into the Usando site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Usando site. After that you can login as usual with your login credentials.
https://support.google.com/accounts/answer/185833?hl=pt-BR
https://support.google.com/a/answer/6341409?hl=pt-BR
https://support.google.com/accounts/answer/1187538?co=GENIE.Platform%3DDesktop&hl=pt-BR
https://www.oficinadanet.com.br/artigo/678/sistema_de_login_usando_sessions_e_mysql
http://www.guj.com.br/t/como-verificar-usuario-e-senha-em-uma-tela-de-login-usando-hibernate/274476
http://forum.techtudo.com.br/perguntas/226370/como-resolver-faca-o-login-usando-uma-das-contas-do-dono-desse-dispositivo-no-celular-android-que-nao-liga
https://pt.stackoverflow.com/questions/104797/login-usando-pdo
http://blog.thiagobelem.net/login-automatico-em-php-usando-curl
https://www.bayada.com/EmpowerIDWebIdPForms/Login/EmpowerIDWebSite?lang=pt-BR
https://groups.google.com/d/topic/androidbrasil/oi1fLROROkU
https://getbootstrap.com.br/docs/4.1/examples/sign-in/
https://www.devmedia.com.br/sistema-de-autenticacao-de-usuarios-em-php-usando-sessoes-e-mysql/37258
https://groups.google.com/d/topic/androidbrasil/vxiZL4nxpt0