how do i get verification on old mac os 10.9.5?
MacBook
You upgrade it. Or you use an alternative path such as texts or calls. Or you don’t get verification codes.
Get a verification code and sign in with two-factor authentication - Apple Support
Check the computer requirements shown in each link to see if your computer is capable of running that OS version.
How to upgrade to macOS Mojave - Apple Support
Check to make sure your applications are compatible. .
El Capitan 10.11 Compatibility information
macOS Sierra 10.12: Compatible Apps
Also check to make sure there is a compatible driver for your printer.
Do a backup before installing, preferable 2 backups on 2 different drives.
how do i get verification code on mac os 10.9.5
