Early 2008 MacBook Pro won't boot after Lion 10.7.1 update

My 2.4 GHz 4GB RAM Early 2008 MacBook Pro wont boot after downloaded the Lion 10.7.1 upate. Upon restarting the screen went dead and now the system does not boot, as if the bootloader has been wiped out. Screen appears dead but was known to be working before hand. The hard drive spins up but doesn't sound like it is searching for data.
Can anyone help me?

Okay, I tried everything I can think of last night. I removed every startup process and every tool or programm that goes deeper into the system (GlimmerBlocker, LittleSnitch, Parallels). Cleaned Up every Cache I could find and refreshed every necessary Cache or Database possible. Took me a couple of hours. But still no luck - the machine doesn't boot, just in safe mode. Right now I copy all my personal stuff to a new external harddrive because TimeMachine doesn't work, after this I will do a clean install of Lion.
It's not hardware related, it's the 10.7.1 update that doesn't work properly. By the way, the only errors remaining are:
WindowServer - kCGErrorFailure
ManagedClient - kCGErrorFailure: CGSPackageGetWorkspaceType: couldn't get workspace type
SecurityAgent - kCGErrorFailure: CGSPackageGetWorkspaceType: couldn't get workspace type
and a lot of:
com.Apple.SecurityAgent.00000000-0000-0000-0000-0000000186A7: CoreAnimation: rendering error 506
that's also the last one I get before the system hangs…

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My Early 2008 MacBook Pro won't boot correctly

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The startup drive is failing, or there is some other internal hardware fault.
Back up all data on the drive immediately if you don't already have a current backup. There are ways to back up a computer that isn't fully functional—ask if you need guidance.
Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.
If privacy is a concern, erase the data partition(s) with the option to write zeros* (do this only if you have at least two complete, independent backups, and you know how to restore to an empty drive from any of them.) Don’t erase the recovery partition, if present.
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Macbook pro won't boot after installing update 10.9.3

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Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.
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MacBook Pro won't boot after trying to install 10.7.3 update. Start up stalls at Apple logo and spinning gear. Computer won't even start in safe mode.

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Early 2008 macbook pro will not boot

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http://support.apple.com/kb/ht3964
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https://discussions.apple.com/docs/DOC-1015
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OS X 10.8.4
Serial: W88450LR1XR
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Micajah10,
rather than a hard drive problem, you might have a faulty internal SATA cable. Do you have an external disk enclosure, or a SATA-to-USB or SATA-to-FireWire adapter? If you can boot from your hard drive without problems when it’s external, but it remains problematic internally, then that could point to the internal SATA cable as the culprit.

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Early 2008 MacBook Pro won't start up

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http://support.apple.com/kb/ht1564
Dimaxum

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-- Update --
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Might be time to replace the PRAM battery. That's not the normally accessible battery, but it is one that often fails after 4 years.

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Regards, Espen Noreger

enoreger wrote:
Hi.
Hi, and welcome to the forums.
My MacBook Pro was running snow leopard with all the latest updates, when the hard drive crashed. I booted from the dvd that came with the macbook, osx 10.5.4, restored the latest Time Machine backup. Everything seemed fine until I try to reboot. I get the grey screen and the message:"You need to press the powerbutton for several seconds". I've reset the pram, powermanager and ran a hardware check that turned out ok. Does anyone have any clues as to what's wrong?
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Early 2008 MacBook Pro won't boot after Lion 10.7.1 update

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