Chosen Solution
Everything is working perfectly fine but I just can’t see anything. Apple said it had water damage and to buy a new one. I just can’t see buying a new one if it works fine with the exception of viewing it. Can I just replace a light?
You will need to replace the LCD by following the guide. That should fix the problem for you.
Be careful. We just replaced the screen on our Ipod Gen 4 to try to address the backlight problem, and the new screen had the same problem. It seems like this is a problem with the Gen 4’s, but it is unrelated to the screen. We have tried adjusting the brightness and turning off the energy saver, etc. Nothing works.
I agree with Melissa and Oldturkey, I have a few logic boards that do the same thing. I’m wondering if the powering circut for the backlight goes bad easily. Most of the ones that have this issue have some signs of water damage, so I assume the power circut goes bad on the logicboard or there is a bad connection to the LCD screen.
I do wholeheartedly agree with Melissa, Just had the same experience on 3 different Nano’s. All three had the same problems and on further examination upon disassembling the Nano’s I found corroded cables on the LCD ribbon. What is noteworthy here is that none of them had any known previous water damage. The ribbon is attached to one of the inner layers of the main circuit board. It’s not possible to replace just the cable.I did replace the screens and cleaned the corrosion as good as I could and got one working but had to replace the other main boards. I would still go ahead and try it :) The cost for the display really wasn’t that bad and it might just be a good challenge. Good Luck…
Hello Friends, change the coil below the display-ribbon. It works fine. I´ve got this problem a serval times. Greetings ! Joy
