Cannot recognize my hard drive after upgrading SMC firmware to 1.6

I have a MacBook Pro mid 2010. The battery is not charging so I've tried to update the SMC to 1.6 to fix the issue. I rebooted after the upgrade and the disk is marked inaccessible.
Any way to revert to the old SMC firmware?

Hey jpgurrea!
I have an article here that can tell you about reverting firmware on your Mac:
About the Firmware Restoration CD (Intel-based Macs)
http://support.apple.com/kb/ht2213
Thanks for coming to the Apple Support Communities!
Regards,
Braden

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tempest68 wrote:
The Combo Update worked. But I need to know why.
Although I have no proof or authoritative source that confirms this, using the Combo seems to account for anything missed by or changed since earlier updates.
This originally started after check for updates, and the 10.6.4 update is when the problem started. What is different about the Combo Update, ...
Pragmatically, the difference is that it just works for me. Mathematically:
Combo http://support.apple.com/kb/DL1048 is File Size: 887.37 MB
Incremental http://support.apple.com/kb/DL1049 is File Size: 607.21 MB
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Someone else (Thanks, Defcom! ) told me about Combos years ago while I was still running 10.3.x.
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You seem to be an experienced user. If you have been using Macs trouble-free for a long time without updating via the Combos, you may decide not to bother with the Combo except in specific cases where you have a problem that isn't corrected by other fixes.
Is there somewhere on the website I need to check regularly in addition to the normal updates?
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http://support.apple.com/downloads/
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• I then run SU again to install any other updates that are available on the same date.
Message was edited by: EZ Jim
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