MacBook Pro Will Not Power On!

Yesterday, a friend at work and I were talking about his MacBook pro. He inquired about a few things including Windows 7 on it. I said I'd be happy to set up BootCamp for him. While at it, he said that he had purchased a Lion USB drive and asked if he should upgrade. I've done thousands of Windows installs and a few OSX ones so I said I'd do it for him.

Today, I received his MacBook Pro (Late 2008) 2.4 Intel Dual Core CPU / 2GB RAM, his software, and the Lion USB key. I booted into OSX and copied his "profile" over the network to a SMB share. I tried upgrading directly with Lion, but it wouldn't let me as I found out it had to be upgraded from 10.6.X - not 10.5.X. Therefore, I decided to do a clean install.

I booted to the 10.7 Lion USB drive and went into Disk Utility where I erased the hard drive. I only erased it - didn't repartition or change drive's format. Before proceeding, I thought I'd be nice and go one step further for this guy and install new RAM into his computer. It was 2x 2GB SO-DIMM 667MHZ RAM which I read would work with it and double his RAM to bring it to 4gb. I installed it.

The Problem

I turned the computer back on with the Lion USB in and only got a white screen. The cursor appeared, but nothing else. I thought that since there wasn't an OS on the HDD, that it would default to the next boot device as PCs do, but it didn't. I turned it off, then back on again - except - it didn't come back on!

So that's where I am. I have a friend's computer which won't turn on.

Note: The battery is bad I've been told and will always show only 1 light of power. The power cord is good, though.

Here's what I've tried so far:

- Removed the battery / power cord for 5 minutes

- Tried with just the power inserted (Get green light on power cord)

- Reinserted original RAM (actually did that first and it has stayed that way during all T/S)

- Swapped RAM into other's socket

- Removed battery & Power - held the power button down for 10 seconds - reinserted and tried to power back on

- Got Stressed!!!

Any suggestions would be great - Thanks!!!

Answered! View the answer I have this problem too

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I've only been able to install to 10.6.8 and had to upgrade even 10.6.6. I have yet to do a clean straight install on 10.7. So you may have to do it from a 10.6.8 installation.

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Thanks - but the issue is that I can't even get it to power on let alone display anything on the screen or boot to an OS.

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My experience has shown that this machine will not boot till the battery has about a 15% charge. If it won't charge to that, replace it.

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Ben Kellermann will be eternally grateful.
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