I replaced the lcd screen on my Dell Inspiron 1525 because it was broken while downloading a service pack update when my dog knocked it off the table, cracking the screen and interupting the download. After that it would not boot so I had to format my hard drive. I could still see some of the screen after formatting my hard drive on broken screen. I then ordered a new screen and now I have a black screen. External output works fine. I also tested the screen in another Inspiron and the new screen is good. I am getting the error code 2000-0321 unable to access edid eeprom. Flashed the latest BIOS but that did not help. In the BIOS in reads- unknown screen type. I then put the cracked screen back in and now I am not able to see anything at all on that screen, either. But a smaller screen from a different Dell Laptop works. Any ideas how to resolve this??