Why is it it saying my SIM card is non provisional and that I’m logged into another device
I’m not receiving some texts and no verification codes it’s says my service is not connected with AT&T well my SIM card for some reason
iPhone XS Max, 15
See this Apple articles below:
How to unlock your iPhone for use with a different carrier
https://support.apple.com/en-us/HT201328
Manually update your carrier settings on your iPhone or iPad
https://support.apple.com/en-us/HT201270
Set up cellular service on iPhone
https://support.apple.com/en-gb/guide/iphone/iph3f11fba92/ios
If it still doesn't work, read the article:
If you see 'invalid SIM' or 'no SIM' on your iPhone or iPad