Default I777 has broken power button and stuck at white AT&T screen.

Hi everyone!

I finally decided to root my (old) Galaxy S2.

Sadly, just when I turn it on, it's stuck at the white AT&T screen with the AT&T logo in the center. I've tried everything with taking battery out and whatnot.

I also tried recovery mode with the Vol + and - buttons.

I believe the power button is jammed as my phone automatically turns on when the battery is placed in it. Because of this, I can't even use it in recovery mode. I also searched on the forums that many people have issues with the power button not functioning correctly, but for some reason, I can only take apart half the phone-- as in the plastic piece that covers up all the circuitry underneath, half of it stays on, stuck to it.

Could someone please me out here? I'd definitely like to be able to use my S2 as more of an iPod as I'm using an LG G2.

Thanks in advance to anyone who can help me out here!