I had my phone rooted for about a month but when I heard news of Lollipop I decided to unroot, I googled how to do it and all ways of unrooting said I needed a rom for my phone, carrier, and android version but I couldn't find it anywhere (until after brick) so I saw an option in SuperSU that said "unroot" so I tapped that and it was "done". I still had to remove CWM and re-lock the bootloader so I found another tutorial and it turned out to just download TWRP. When I left recovery mode TWRP said I wasn't rooted so I hit the option "Root device" because I figured if I didn't do so something bad would happen to my phone, after that I redownloaded supersu and some other root app. After I downloaded the other root app it asked to reboot, I did and my phone got stuck on booting up. I looked up another tutorial that said I should do a restore before I went on with fixing it because what I downloaded could've been something bad and I ended up accidentally wiping out the OS. Now I'm here, I've tried using adb push in recovery mode to download and install the ROM I eventually found but when I hit "install" on the file in TWRP it says, "error couldn't unzip file". Can someone help me please?