There are times when users can’t sign into Yahoo mail and seek out for the solutions to fix can’t sign into Yahoo mail on Android device. This issue majorly occurs because of invalid settings. If you can’t sign in then follow some of the troubleshooting methods. Start by checking whether you can log into Yahoo mail account by using another web browser or device. Make sure to use an updated operating system as an outdated OS might lead to the issue. After that, remove and add Yahoo mail to iOS. Lastly, users can smoothly add Yahoo mail to iOS mail with IMAP.