White screen, keyboard/touchpad both unresponsive.

Today I replaced the battery in my macbook pro, whilst doing so, i slit a cable which is have found to be the ribbon cable coming from the trackpad. Now, when I turn on the laptop I see a white screen, the keys are unresponsive and nothing happens. I have ordered a ribbon cable to replace the old one but I am not convinced this is the problem. It appears that the trackpad AND the keyboard are not working, the screen is just white and doesn't load. Does anyone have any idea what may be causing this?

the reason i believe it can't be the trackpad causing the white screen is there are many other people with faulty track pads but they are able to boot up laptop as usual.

Any help would be greatly appreciated.

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I don't know if you solved this problem, but I too slit the trackpad cable and I have the white screen... So this is a symptom when the trackpad cable is damaged.

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Hate to bump a dead thread, but I noticed that no-one responded saying that they fixed it. . .

I can confirm that after accidentally slicing my trackpad cable when removing the motherboard from my 2009 Macbook Pro 15 and receiving the white only screen with wide open fans, that replacing the trackpad cable resolved my issue.

Have a great day.

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You might have a short. Try disconnecting it from the logic board and plug in a USB keyboard & mouse.

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Generally a white screen indicates an inability to access the hard drive. Since the power button works and you only get a white screen, I don't see how you can test out the trackpad or keyboard. The most common problem on this particular machine that I've found is a failed hard drive/IR cable. Try everything that Dan says first, then think about that cable. Do not replace it with a used one.

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