Why is my backlight not working?
MacBook core 2 Duo 2.0GHz.(Late 2008 edition)
Just recently, I put my MacBook to sleep by closing it. When I opened it, nothing was showing on my screen. So I kept opening and closing it, only to notice that the light would flicker up for a split second then go out soon after. So I tilted my screen toward the light and noticed that I could see my desktop and everything. What I also noticed was that the light from the apple symbol at the back of the screen wasn't lit like usual. After a while, I started to play with the brightness adjustment and noticed that when I'd put it to the lowest setting and up one, the light would flicker on. I did this faster and faster [going from the lowest setting to the next]. Eventually, the light would go on but only stay for a couple of minutes before it gives out. Now I have to rely on that little trick to get my backlight to work.
Does anyone know what's wrong and what I can do to fix it?
Your inverter has gone bad or the inverter cable has been damaged. Here's how I fix it: Repairing MacBook Core 2 Duo Installing LCD & Inverter (fast method) A1181
There is a longer guide for doing this but it involves going into the main body and takes three times as long.
I could not find a 2.0 late 2008 macbook, please give us the last three letters of your serial number. My answer may be for the wrong machine.
after months of using the macbook with a dimm and fanishing backlight I now changed the backlight ccfl. It is a bit of a tricky operation, where i had to peel of lots of aluminium tape(bottom of the lcd screen) and un-clip some metal parts, i had to brake( it broke) the plastic edge part, to make the lightbulb sled come out. A lot of patience and "fingerspitzeng
if you can solder well, it will not be difficult to solder the cables onto the new bulb. i orderd a bulb with the new cables already soldered. the part cost me 12 euro´s and came out the us.
i am now having a perfect backlight again.
the problem wasn´t the inverter, or the inverter cable it was a bad light bulb. it seems it is possible for the cffl to produce some light now and then, but still means it is broken.
Thanx for all the responses.
1. Set your brightness
Sometimes it’s the basic things – your brightness might be set to minimum. Use Fn+F2 to turn up the brightness (you may not need to hold down the Fn key depending on your Mac’s settings).
2. Zap your PRAM
One trick to deal with minor hardware problems is to reset your PRAM and NVRAM. To do this, power down your Mac, then, turn it on and hold down Command+Option+
3. Reset your Energy Saver settings
You may need to use an external monitor or VNC for this. While you Mac is booted, open System Preferences and choose Energy Saver. Under ‘Put the displays to sleep’, set the timer to 1 minute, and then wait 1 minute for your machine to go to sleep. Wake it up, and hopefully your screen will spring back to life.
4. Take out the battery
If your Mac is a portable, turn the computer off, unplug the AC power cord, and take the battery out. Next, hold down the power button for 5 seconds, and the re-insert the battery. Then boot up again. In my case, this is what worked.
5. Turn off any Energy Saver settings
My screen only began working again after I went to Energy Saver settings and turned off ALL of them. Which means I'll waste a lot more energy, but at least my screen will be working. (not a bad problem at all)
(also, yes, I have noticed that I am two years late to answering you, but I guess my answer would be useful to other people that might come across this page, such as myself)