Keychain

Hello there, Kbrs2406.

It sounds like you are trying to setup iCloud Keychain on your iOS device. The following Knowledge Base article offers up some recommendations to review for troubleshooting:

Get help using iCloud Keychain

First, check the System Status page for outages, then see if iCloud Keychain is available in your country.

If you didn't receive the verification code via SMS

1. Make sure that you have a strong cellular network connection on your phone.
2. Make sure that your phone number can get SMS messages. To check, ask someone to send you a text message.
3. Make sure that the correct phone number is associated with your account:
   • On your iPhone, iPad, or iPod touch, tap Settings > iCloud > Keychain > Advanced. (In iOS 7, tap Settings > iCloud > Account > Keychain.) Make sure the phone number under Verification Number is correct. If not, enter another phone number.
   • On your Mac, choose Apple menu > System Preferences. Click iCloud, then click Options next to Keychain. (In OS X Mavericks or earlier, click iCloud, then click Account Details.) Make sure the phone number under Verification number is correct. If not, enter another phone number.

If you can't access a device that has iCloud Keychain enabled, contact Apple Support and verify your identity to get help setting up iCloud Keychain.

Thanks for reaching out to Apple Support Communities.

Kind Regards.