استخدامُ Outlook لنظام iOS لإدارةِ البريدِ الإلكترونيِّ الشخصيِّ والتقويم
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In these situations where you have formatted your cell phone or replaced it with a new one, you will have to Verify Your Identity using the alternate recovery methods like Phone number or email address.
That is, if you have backed up all of your authenticator credentials to Recovery email address, enter the recovery email and sign in.
On the Screen when you see "Use the Authenticator app to Sign in", select " I can't use authenticator app right now" and use the recovery phone number or email address to verify your identity.
Sometimes you may be prompted to reset your password. After the reset, select "Start Recovery" again and add your account to the Authenticator app.
All of your previously added accounts will be linked to your Microsoft Authenticator app again, and you'll need to verify each account next.