Do you experience any error sign in of your Yahoo mail account on your Old Version Smartphone like V2.0.2 or V4.2.2 Mail app
and all your input details including Username and Password are correct but still don’t sign in
, this error is cause because the app you use in signing in your account thus not meet modern security standard (ex. Older versions of mail and calendar apps such s Outlook). As a result for this Yahoo mail administrator prevent your account from signing in to keep it secure.
Do you still need to sign in your yahoo account using your Old Smartphone; there is still a solution to the problem, Kindly check below to view the solution.


Simple & Ease Solution
1. Switch to genuine Yahoo’s app such as Yahoo mail on desktop and Smartphone and Remove your account from all other less secure apps.
2. if you still want to use an app with less secure  sign in, go to https://login.yahoo.com/account/security # other-apps and turn on “Allow apps that use less secure sign in.{Note: This process is not recommended to be use and it may leave your account more Vulnerable to compromise.

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