MFA i cannot connect

I understand you've lost your MFA (Multi-Factor Authentication) device and are unable to connect to your AWS account. This can be a frustrating situation, but there are steps you can take to regain access:

1. If you're trying to access the root account and still have access to the email and primary contact phone number associated with your account, you can use alternative authentication factors to sign in. Look for options like "Sign in using MFA," "Troubleshoot your authentication device," or "Troubleshoot MFA" on the sign-in page.

2. For IAM users, contact your AWS account administrator. They can disable the MFA for your user, allowing you to log in and set up a new MFA device.

3. If you're using Amazon Cognito and have access to the AWS CLI, an administrator can disable MFA for your user, optionally reset your password, and then re-enable MFA. You'll then be prompted to set up MFA again with a new QR code on your next login.

4. For AWS Skill Builder accounts, it's important to note that if you've lost access to all registered MFA devices, recovery might not be possible. This emphasizes the importance of registering multiple MFA devices as a precaution.

5. If none of the above options work, you may need to contact AWS Support. They have a specific form for MFA-related issues and can assist with deactivating your MFA device if you can verify your identity through other means.

Remember, for future security, it's recommended to register multiple MFA devices to prevent this situation from recurring. This way, if you lose one device, you'll still have access through another.
Sources
Recover an MFA protected identity in IAM - AWS Identity and Access Management
Cognito_MFA_Reset_or_reconfigure_for_user | AWS re:Post
Unable to Login to Skill Builder Due to Lost MFA Code | AWS re:Post
MFA device reset for root user | AWS re:Post
I lost my phone associated with 2FA | AWS re:Post