There are several reasons why you might see a “Password incorrect” error when signing in to Google using third-party apps like iPhone’s Mail app. In some cases even if you type your password correctly.
Here are the most common reasons you may see this error, and steps to take to access your account:
Still having trouble signing in?
If you’ve tried all the options above but are still unable to sign in to your account on the app, try the following:
Go to https://accounts.google.com/DisplayUnlockCaptcha on your device's browser.Enter your username and password, then type the letters on the screen.Go back to the app and try signing in again.