Buy a screen replacement from here:
http://www.ownta.com/original-lg-u900-cell-phone-lcd.html
Then, buy a universal opening tool:
http://www.ownta.com/wholesale-dropship-repairing-tools/phone-opening-tools-dropshipping-wholesaler/universal-opening-tool/
You can replace the lcd screen by yourself, good luck !
stuck, August 2009