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Mid 2012 model, A1278 / 2.5 GHz i5 or 2.9 GHz i7 processor.

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No Battery, X over Battery and slowness?

Hi, so I have a Mid 2012 MacBook Pro. It’s a friends to whom I’ve been asked to look at it. It will turn on completely fine plugged into the MagSafe charger. But it doesn’t even detect a battery even with the side battery indicator button. It has a green light on the MagSafe but the battery indicator is a battery with an x in the middle. I tried resetting the SMC to which I’m not sure I was 100% successful at. I also opened up the laptop, disconnected and reconnected the battery , and it din’t do anythhinnf.

But I reinstalled the os and wiped the Hard drive. If the battery itself is the problem I have no issue replacing it myself, I’d just not rather spend the money on the battery and it not be a problem. Let me know what you guys think!

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Also the laptop is a little slow, would it be better to replace the Hard drive with an SSD or the Ram or both?

Update (05/27/2019)

Okay awesome! I will do that. So I did run coconut battery before I just forgot to add that in. It just says N/A or 0 for everything. See picture.

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Answered! View the answer I have this problem too

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Your battery logic is not communicating to SMC. Likely have a bad battery.

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Let’s take a look at that battery with a better tool. Please run Coconut Battery and post your results.

https://www.coconut-flavour.com/coconutb...

On your upgrade, take it to 8 GB of RAM. Installing an SSD in addition will give you dramatic speed results.

Also replace the hard drive I/R cable as it gets damaged. To protect the cable from future damage, I use 3M Extreme Mounting Tape (red tape in photo), on either side of the cable to prevent the bottom on the case coming into contact with the cable and damaging it:

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I added an answer to reply I’m not familiar with how this forum works with replies or anything.

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usually means you have to replace the battery

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Logan Davis will be eternally grateful.
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