Hey, I did an SMC reset but did not resolve the issue. Then I just reseat the cable from Trackpad to Motherboard. Then it works perfectly now. Power on using power button as normal. I found that there is a small dirt particle at the cable connector at Trackpad. Blow that particle off then issue resolved. Poor Apple Technicians. The owner told me that Technicians did try out a new battery, new Megasafe board and concluded that motherboard needs to be replaced. The original owner decided to sell it to me quite cheap.
I have same problem. My Macbook A1342 Late 2009 turned on but the screen is black. I can see everything on desktop with a flash light. My story are following: The old screen is freezing at some point when starting up. I have to fold/move the screen a bit to get it fully started up. So i thought it is LVDS cable I tried to replace LVDS but nothing changed. It still turned on, took installer disc and made sound like it reading the disc. I still can see things on desktop with a flash light Now it ordered a brand new lcd screen panel. It turned on but black screen. I can see everything on desktop with a flashlight. I did not see apple logo on back of screen light up. Do you know how to fix it?
I have same problem. My Macbook A1342 Late 2009 turned on but the screen is black. I can see everything on desktop with a flash light. My story are following: The old screen is freezing at some point when starting up. I have to fold/move the screen a bit to get it fully started up. So i thought it is LVDS cable I tried to replace LVDS but nothing changed. My bad when i tried to connect wrong end of LVDS. Then my old screen is gone. Nothing show up on screen even with a flash light. It still turned on, took installer disc and made sound like it reading the disc. Now it ordered a brand new lcd screen panel. It turned on but black screen. I can see everything on desktop with a flashlight. I did not see apple logo on back of screen light up. Do you know how to fix it?