An error occurred when logging in to teams on a mobile device

Question

I encountered an error when I logged in to teams on my Phone. This is the error message that appeared when I logged in to mobile TEAMS:

Correlation Id: h6a8b925-2772-44bd-8357-4afbda581728

Timestamp: 2025-02-27T09:57:52.000Z

DPTI: b54efbb7hvv61d3e

Error Tag: 5nlhg

Error Code: 1388187389

Answer 1

Hi @Altria

According to your case description, you encountered an error when using Teams on your mobile device, which is usually related to user account settings or system configuration. To better help you, we need more information about the following content to systematically diagnose the problem.

• What version of the Microsoft Teams application are you using on your mobile device? Have you checked for Teams updates?
• What type of mobile device are you using (such as Android, iOS)?
• Have you tried to log in to Microsoft Teams on any other device? If so, did you encounter the same error?
• Have you tried to clear the cache of the Teams application or reinstall the application?

The following are feasible solutions for your reference:

1. Update or reinstall the Teams application in the App Store. And try to clear the cache and user data when uninstalling.
2. If possible, please use Microsoft Authenticator to verify the login and keep it in the background. Try to log in to other Microsoft applications: such as Teams, Outlook, OneDrive, etc.
3. Follow the same steps as above. If you have Microsoft Office 365, try to log in again and then use Microsoft Teams.

---

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

---