iPhone Locked to Owner

Hi everyone,

My name is Dominic and this morning i updated my iPhone 7 to the latest version 15.3. I have being using this phone for a couple of months now and started to have some connectivity issues. A friend of mine suggested me to update the phone to resolve the issues. I did that with 3utools and everything went on very well.

The problem is that after the update, i was prompted to the activation page to insert my apple id, thing that i did but it keeps saying i can't use my apple id to activate the phone. Moreover, i see "iPhone locked to owner". When i check my apple id from web i can see my device in my account with my serial number... I still even have all the pictures of credentials and phone details in my google drive...

I am freaking out because i have to access my documents and they are only in the phone. Please someone help meee... Help pleeease