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Mid 2009 Model A1278 / 2.26 or 2.53 GHz Core 2 Duo processor EMC 2326

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Installed new battery and new magsafe charger but still not charging?

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Hi All,

I don't know what to do anymore.

My old battery now has 1210 cycles! and shows it needs to be replaced now.

I bought new OEM battery and new OEM MagSafe charger but still the battery not charging .

I tried to reset the SMC but still not charging!

The weird thing that when I put may old battery back the MagSafe start charging (orange and green light) but once I put the new battery in nothing happens! No charge, no light, no nothing!

Please can any one help or explain how come the old battery charges and the new one is not.

Thank You

Update (04/05/2019)

Thanks all,

Finally by chance i tried something and now it is working.

I unplugged the battery, plugged in the MagSafe (charging with green color) and while its giving power without battery I plugged the battery back in and suddenly the green light changed to orange and started to charge till Full with green color.

Thanks all for your help.

Still need some help!

I had another issue though, hope you can advise me about it.

I have the original OS (OS-X Snow Leopard ) and was upgraded to OS-X Yosemite  long time ago, while I'm preparing the system for my daughter I thought to upgrade to the latest OS-X thats compatible with my Macbookpro5.5 Mid 2009-13”

What I found is OS-X El Capitan so i started to upgrade it through Apple website and while downloading/installing I got an error message that cant be complete with a screen (log file) with a lot of codes, I tried to do it again and again with no luck. and I couldn't go back the previous one (Yosemite), Gladly i have the original CD so I started installing the original one which is “Snow Leopard”

What shall I do to upgrade? What would  be the best upgraded OS-X for this system?

I read that some apps are not compatible with El Capitan, I don't know much about this, just want to prepare the system with latest compatible and stable OS

Thank you and sorry for the long message.

Hope to hear from you soon!

thx

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Comentarios:

What does the MagSafe LED show you Amber or Green?

Also install this gem of an app CoconutBattery Take a snapshot and post it here for us to see Adding images to an existing question

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I couldn't install the CoconutBattery as I have the older version of the OS.

for the LED,there is not light at all with the new battery.

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Post a note on the web site to get the older version.

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So what I did..i plugged the charger without a battery and the MacBook was working perfectly. I inserted the battery and it was charging. Once I put the screws back (specifically the long top-right one) it stops. I noticed that the screw is pushing the cable of the power board (as I replaced it recently) I was able to solve the cable issue, I returned everything and the battery charged again and everything was ok.

but after the battery reached to 0% the charger wouldn't charge again..im totally frustrated ,but I noticed if I removed the charger for a few minutes and then plugged it again the battery start to charge again.

its happening continue sly now. The battery is charging but sometimes the charger doesn't..i wait few minutes ,plug it again and its charging ( nothing wrong with the charger).

I'm confused. Would this be from the battery ( I bought OEM new from ebay with warranty on it) or it might be from the power board? can any one advise ..sorry for the long msg and thank you.

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@elagha - There are no real OEM batteries!

Apple does not permit their part suppliers from selling parts independently. Thats not to say OEM parts aren't available by someone taking a new system apart for the parts!

But lets be real here batteries is not one of the parts one is likely to find being resold. What you bought was an aftermarket replacement battery!

So you could have gotten a bad one its also possible your system has other issues as well.

One of the more common issues is a fake MagSafe chargers damaging the charging logic! OEM MagSafe Chargers vs Cheap Imposters: Teardown for Truth. You should also check a real one too! Apple Portables: Troubleshooting MagSafe adapters as a damaged cable or MagSafe connector can damage your system too!

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To install the updated OS you’ll need to prep up an OS installer drive following this guide How to make a bootable OS X 10.11 El Capitan installer drive You’ll need to use a FireWire drive, Once you have it setup you’ll need to also back date the system as the installer won’t run with todays date. Manually alter your systems date to 2015 and reboot using the OS installer.

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Thanks a lot..do you advice to install the El captain on the macbookpro5.5 mid 2009?

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and one more thing plz..i will read the link when I go home today..but as a quick information..does the link shows how to download the original OS X El Capitan..as I don't have it (I should download it first and then burn it on a dvd right?) I'm a windows user :)

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While you can setup a Mac OS disk from a Windows system it's a bit tricky! It's a lot easier setting it up off of a Mac System. As for a DVD disk That too can be done as well but again it adds a layer.

And lastly, yes you need the OS installer file. Maybe its best to visit an Apple Store or authorized service center to get some help in setting up the disk or even your system.

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If your old battery is being charged but the replacement is not charging it is likely that your replacement battery is defective. I have run into situations like this and I finally got a good replacement battery after my 3rd try.

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Thanks for your reply,it seems that its defective although it brand new.

as when I removed it the MacBook were working perfectly without battery (just the charger plugged in).

I bought the battery from ebay and its showing that its 100% original and I contacted the seller and confirmed that and asked to return it for refund.

I still don't know what to do shall I buy another one the same from another seller ? or try one of the replacement batteries available on Amazon?

Can you please tell me from where did you buy yours?

thank you

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I get mine from a place called Protech Restore. i Have been using them for about 6 months with no issues.

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