Mountain Lion only boots into Recovery mode after using iCould lock

I tried them several times.

Booting with holding the option key gives me a blank box to type in my PIN (still!), and it looks like a normal password box, not the iCould Lock style.

The Reinstall OS X function in Recovery HD gives me the error message: "This copy of Install Mountain Lion application is damaged, and can't be used to install OS X."

Did it, completed and says:

The volume Macintosh HD appears to be OK.(in green)

Volume repair complete.

Updating boot support partitions for the volume as requested.

Still can't boot into anything (normal, Safe Boot, verbose mode), but Recovery.

EDIT:

What I don't understand is, why it never asked me to enter my PIN the way like this: photos.appleinsider.com/lockscreen-110803.jpg

So I guess it never got unlocked, hence it still doesn't let me boot, and asks the PIN as a password after the option key boot.

What do you mean where did I find the iCould app?

The first time I installed Mountain Lion after puchasing it, the iCluld app came with it. Then it got locked, and it is ever since.

I do not have anybackup. I have every data I needed, but the operating system I installed now and can't boot was just a clean install.

I tried "resetpassword", did it and still can't boot into my Macintosh HD, pops me back into Recovery mode.

My Mountain Lion came with it. I just had to set it up with my AppleID.

Any ideas how to unlock it?

Yes, I locked it on icloud.com, with the Find my Phone application.

I know my PIN and as I said I entered it several times after booting with option key held down. The only problem it wasn't the unlock screen, just a simple password box, which accepted my PIN, but didn't unlock my computer, nor does it boot.

I already wiped my whole drive with disk utility and reinstalled but as soon as I update Snow Leopard to Mountain Lion it happens again.

Yes! Snow Leopard works fine.

I don't know why I can't download Lion either. Appstore just doesn't let me to.

I believe the hard drive is still locked by iCloud even if I wiped it completely and installed Snow Leopard on it. How is that? How can I remove it?

Do you have any idea about my random kernel panics though?

Visiting an Apple Store is not really an option since my city doesn't have one and right now I can't travel 2 hours for it.

Based on your previous post, I was under the impression you could download Mountain Lion, but when you installed it, it locked up again. Not true?

Yes. More precisely, now I am able to download it, but when I install it, either a kernel panic occurs or if it finishes it reboots only into Recovery.

Right now I wiped it clean and now I'm running Snow Leopard. If I boot with the option key held the lock comes back again and asks the PIN, but still not in the regular unlocking screen, but in a password box-like screen.

If I try to install Mountain Lion again, it installs it, and when it'd boot into the system it boots only into Recovery and I can't go anywhere from there.

I'll try contacting Apple Support.

Kernel panics started roughly three week ago. They because more and more frequent (4-5 times a day, sometimes more). They occur usually when I move the computer, or I lift it. I'm guessing the cable going to the screen is injured. They came so much, that my HDD couldn't take it anymore and the whole system crashed. I couldn't boot my Lion. Then I saved my data via the Recovery mode and installed Snow Leopard from my DVD. When I wanted to download vie the Appstore the OSX Lion, it said it's no longer available. So I purchased Mountain Lion. I installed it and tried out the iCloud lock and you know the rest.

If more happens I'll post them.