Help !!! LG O2x Brick

[madn28]

I did my first root (Unlockroot.com) on LG O2x GB (V20c) successfully .
Then instaled Titanium-Pro and Rom Manager did flash,everything was fine.
Then i tried(Titanium) to freeze or uninstall some like yahoo mail-gmail and car home,at this one and some other i tried ,the freeze was stay still-working.Restarted few times with no problems.
Last restart and any from now on is like before, the phone it starts normally,can see the wallpaper through slide .... but,when the slide is up the screen is black , can't do anything, nothing to touch.
The only things i can do are :
Can i answer the call,it appears normaly,but can't dial.
Pluging the usb it cames the message to turn on or not,so i can connect to PC but can't do the debbuging mode.
And I can enter with Down+Power keys ,i tried everything there,did the backup recovery-not working , probably was not did good.
Clockwork mode Recovery V5020 it says :MD5 mismatch

So,please if anyone could help fix this or go back the way it was for warranty-service , PLEASE HELP !!! (step by step for begginers)
Thanks
Paul

 

[madn28]

any help ??? plz!!!
Did yesterday the factory reset (Down key+Home+Power),nothing's happend,start the same way above.
Then ... today dead , nothing starts
Did NVFlash
How to Root LG Optimus 2X Android 2.3.4 Gingerbread - LG Cell Phones Blog
Nothing , still dead
thx

 

[madn28]

Strange things happened,
after a lot of turn it on and not a chance,i pluged the usb and it turns the white LG and then in CWM,,tried to continue to install from sd ,but... the sd was not there,lol
and now again again can't turn to CWM , so it's there but can't acces

 

[madn28]

i figured it out,some was drain the battery over the night,wait to charge and try again...

 

[madn28]

Done !!!
Did the procedure below,point 4.5.6. and put the MoDaCo Rom Froyo and it's alive ...!!!
Android 2.2 Froyo Custom Roms for LG Optimus 2X - LG Cell Phones Blog