Released June 2012 / Core i7 processor with Turbo Boost / Up to 1 GB DDR5 Video RAM

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MacBook can't complete installation of El Capitan without battery?

I have a 15" MacBook Pro Core i7 A1286 (mid 2012)

I'm unable to complete the installation of El Capitan. I only have the HD & RAM memory installed (no battery).

Other Mac OS-X Versions are installing OK (even Windows). But, when I try to upgrade to El Capitan it never finishes the update. Also, it will not install via USB thumb drive.

I have tried everything!

I wonder is the problem I don't have the battery installed?

Answered! View the answer I have this problem too

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Lets be careful here! ALL CAPITAL LETTERS IMPLIES ONE IS YELLING !!

We talk with indoor voices here ;-} Please use mix/lower case.

It also makes it hard to understand what you're trying to say. Hopefully my edits to your question reflect what you want to say.

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Excuse me, I am using the translator!

My MacBook does not finish the installation of El Capitan.

The equipment is no battery, this may be causing the problem?

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Where do you live? Its always fun to find out. No problems! Translators can sometimes mess things up.

I don't think the battery is the issue here. Did you follow my steps in my answer below? I think you encountered a needed firmware update and just didn't give it enough time to update.

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I doubt any one has done any testing doing an OS upgrade to El Capitan without a battery installed. With that said I don't see why the installer would care.

So lets see if we can isolate the possible issues here:

  • The next thing I would do is check the HD, do you have enough space on it? You may want to run this program to clear out the old cache & log files: Disk Doctor.
  • I would then boot up under an external drive and run from it Disk Utility to check & repair the drives permissions & disk structure if needed (make sure the drive is setup correctly GUID & Journaled file system). Next, I would delete as much as I could so the systems drive had 1/4 to 1/3 of free space. The last thing here is defrag the drive using an app like this one: Drive Genius. Before restarting the system I would also make sure the internal drive is set as the boot drive.

Now I would do the upgrade!

I should point out El Capitan does do a firmware update so it will appear to shutdown and take awhile to restart. You should hear a long beep tone different than you normally hear. Don't touch the system! Let it do its thing. In some cases it has to go though the process twice.

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There been lot of chatter about El Capitan and the battery. (none of it good)

It may do something to the battery and have to have it in to do a complete update.

https://discussions.apple.com/thread/725...

http://forums.macrumors.com/threads/batt...

http://forums.imore.com/os-x-el-capitan-...

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@Mayer - We haven't seen any issues here with our 300 + systems we work on which are all running El Capitan.

We have seen a rise in swelled batteries and shorted out SMC logic! Which we have tied to bad MagSafe adapters (the cable being bad).

Looking briefly though the posts you linked here, I suspect people have processes running that their unaware of (P to P file sharing bing one of the worst!). We control out systems quite tightly which could explain the reason we haven't seen the problems these folks have.

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Can some one say if terminal you can "battery off" (if your battery is dead, but u don't want to buy new one) so one can install a new OS X or...macOS ???

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