Unable to log into Microsoft Account after iPhone 16 upgrade - Authenticator not displaying codes

Question

Unable to log into Microsoft Account after iPhone 16 upgrade - Authenticator not displaying codes

RJ 65

After upgrading to iPhone 16, I’m unable to log into my Microsoft work account. When I try to access the Outlook app, it prompts me for a code from the Authenticator app, but no code is displayed. Unfortunately, the Authenticator app is the only authentication method I have set up, so I’m locked out of my account.

I’m also the administrator of this work account, which means I can’t make any changes to settings or reset authentication methods without logging in. I’ve already contacted Microsoft support and completed basic troubleshooting steps, but nothing has worked so far.

To make things worse, I can’t submit a ticket online because it requires me to log in, which, again, I can’t do without the Authenticator code. I’m stuck in a loop. Is there any solution to regain access to my account and fix this issue?

Any help would be greatly appreciated!

Christopher Haskett 0 Reputation points

2024-10-16T01:07:34.3133333+00:00

I have the exact same problem after upgrading to iPhone 16, currently locked out of accounts with Authenticator providing a code in the app itself but no way to input the code.
Erica Hartley 0 Reputation points

2025-03-11T05:20:29.65+00:00

I know this issue is months old, but soon enough someone will come searching for answers and I hope this helps.

If you still have your old phone you can use your old Authenticator as a work around. This is critical.

On your old phone, login to your Microsoft 365 account and authenticate with your old phone. Then, click on Security Info, then the + Add sign-in Method. Next click Microsoft Authenticator.

Jump over to your new phone. Remove the account from your Authenticator if you haven’t already done so. Then click the + to add a new account. Choose Scan QR Code.

Return to your old phone. Follow the prompts and click Next. Then look for the Show QR Code link. Once it appears, scan it with your new phone and your new device should now be registered to your Microsoft account properly. That should solve the issue! Good luck!
Bobbie n Wayne Lutz 0 Reputation points

2026-04-29T13:21:25.52+00:00

I’ve been locked out of my Outlook acct on my iPhone 16 Pro. My husband can open this same acct. on his iPhone 16. The Apple Store Genius Bar told me it was a Microsoft issue.

Your answer

Christopher Haskett 0 Reputation points

2024-10-16T01:07:34.3133333+00:00

I have the exact same problem after upgrading to iPhone 16, currently locked out of accounts with Authenticator providing a code in the app itself but no way to input the code.
Erica Hartley 0 Reputation points

2025-03-11T05:20:29.65+00:00

I know this issue is months old, but soon enough someone will come searching for answers and I hope this helps.

If you still have your old phone you can use your old Authenticator as a work around. This is critical.

On your old phone, login to your Microsoft 365 account and authenticate with your old phone. Then, click on Security Info, then the + Add sign-in Method. Next click Microsoft Authenticator.

Jump over to your new phone. Remove the account from your Authenticator if you haven’t already done so. Then click the + to add a new account. Choose Scan QR Code.

Return to your old phone. Follow the prompts and click Next. Then look for the Show QR Code link. Once it appears, scan it with your new phone and your new device should now be registered to your Microsoft account properly. That should solve the issue! Good luck!
Bobbie n Wayne Lutz 0 Reputation points

2026-04-29T13:21:25.52+00:00

I’ve been locked out of my Outlook acct on my iPhone 16 Pro. My husband can open this same acct. on his iPhone 16. The Apple Store Genius Bar told me it was a Microsoft issue.