사용자가 전자적으로 노트를 캡처, 구성하고 다시 사용할 수 있도록 하는 Microsoft 제품군입니다.
Hi 재은 이,
Thank you for reaching out. My name is Leo, a user just like you. I'd be happy to help you with your concern.
May I know if you are able to log in using another device? Does the issue only occur on your mobile phone? Have you tried reinstalling the OneNote application? Kindly try signing in using a browser via www.onenote.com, then sign in to your account and check if you can sign in without any issues from there. If yes, it might be a problem with the application. For this, kindly try signing in using another account alias, such as a phone number. We will wait for your response to assist you further.
Your understanding and patience will be highly appreciated. I hope I provided a helpful information regarding your concern! Let me know if you have any further questions. Be safe always!
Best Regards,
Leo