Using Outlook for Android for personal email and calendar management
Don't give up. You must be doing something wrong. I have a Google Pixel 8. All you need to do when you are on settings is open your browser at the same time and login into your Microsoft account. Click on Security and then click or tap on Security dashboard and go way below where it says: "Create a password app". Copy and paste it and that's all. For old BlackBerries whether are OS 10 or Android I recommend IMAP. All the other Androids whatever you wish but keep your 2FA off just in case even though there was an update and it won't be necessary. THE MATTER IS RESOLVE. It wasn't BlackBerry but Microsoft new authentication system. Microsoft has contacted BlackBerry and that's the solution. P.S. For every App or device you must refresh or log into Microsoft account to create the password. The password you used one time for a device or app won't be the same for next one. Good luck