Is it possible to get my data from unavailable iPhone?

Dear All in community,

I’m here for seeking some help…

I’ve used my iPhone 7 Plus for 7 years happily until couple days ago…I passed out after I changed my screen passcode. After I was awake, I couldn’t remember my passcode at all.

I had tried several times but still not work. I didn’t know I could only try 10 times, so in the end, my phone turned to unavailable to use…

I have so many so many important data and memories in my phone that I couldn’t back up in time. But I was told I could only erase it to unlock my screen.

Is there any solution to unlock my phone without losing my data?

Or I can take out my date even the screen is locked?

Really need help…

I can totally prove this is my phone coz I still keep the box and the receipt, the log-in Apple ID is mine too.

I really need my data, contacts, pictures…But so far the answers I got are all directing to ‘They can’t help’.

My device has been updated to iOS 15.7.8.

Hope anyone can help me.

Thank you.