security lockup

Unfortunately, it’s already too late. 😕

Your only option is to reset and restore from a backup as described here:

If you see an iPhone or iPad unavailable message or Security Lockout screen – Apple Support (AU)

Note: If your old phone is running an iOS earlier than15.2, follow the additional instructions linked near the bottom of the article.

Sorry no. No backup = No recovery.

See this tutorial video about that:

https://www.youtube.com/watch?v=7s8-zLG9ySQ

Regards

Giulio