Ios 15.7.1
I can’t log into mine apple account because i need to be on iOS 16, mine iPhone is on iOS 15.7.1
Earlier iPhone models
I can’t log into mine apple account because i need to be on iOS 16, mine iPhone is on iOS 15.7.1
Earlier iPhone models
Hello LukasArslan,
Thank you for reaching out to Apple Support Communities.
If you are referring to your Apple ID, your current iOS version shouldn't be a restriction.
These steps can walk you through the process:
"Sign in on your iPhone, iPad, or iPod touch

If you're already signed in to iCloud on the iPhone paired with your Apple Watch, you will automatically be signed in to that Apple ID. Learn more about how to set up and sign in to your Apple Watch. "
More details can be found here: Sign in with your Apple ID
If the issue persists, can you provide a few more details? What exactly happens when you attempt to sign in? Also, which iPhone are you currently using?
Cheers!
Ios 15.7.1