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

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While working(between 10min-5 hours) shuts down automatically

Hello dears,

Hope you are doing well and safe.

Could you please help me to fix?

Recently my Macbook Pro 2012 wasn’t turn on then I have been changed battery then shown me folder inside quotation mark(?) then I changed cable for Sata HDD then another issue came.

Issue

Macbook Pro 2012(A1278) while working sometimes 10min to 1-5 hours then automatically shuts down before shuts down gives some noice like a beep(very quick less than second) then I am turning on working as usual but it is repeating again again. It is not sleeping just shuts down.

I tried reset NVRAM, PRAM, and SMC unfortunately it does not worked

Before I changed battery and cable wasn’t like this.

There are new snaps.

Mac charged over 8 hours with MegaSafe charger

This photo I took in the morning which 100% battery

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This is after 4 hours

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This is after 6 hours

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This is after shuts down

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Additional photo when you click the battery icon showing exclamation mark(!) and written “service battery“ u can see in the photo I highlighted with red and showing 88% all the time

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Отвечено! Посмотреть ответ У меня та же проблема

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Lets take a look at your battery and charger, install this gem of an app CoconutBattery take a snapshot of the apps main window and post it here for us to see Adding images to an existing question

из

@danj here it is

из

Better, now use your system with the MagSafe plugged in all of the time. Is the system stable?

из

@danj Yes I have been using MageSafe plug, regarding system currently High sierra, I would like to update it after fix this problem

из

Let's not jump the gun! Is the system stable now?

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So far your system battery is low and the charger appears to be working, the battery still looks OK.

Given how low the battery is I’m suspecting your system is shutting down do to the that. I would let the system charge the battery fully and then monitor things.

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Updated photo could you please check again? If the result is still the same please clarify more what needs to do(Change hdd to ssd or Ram so on). Thank you so much

из

Its the same!

Why change the RAM or the drive? Thats not related to your symptoms.

At this point you need to let the system tell you whats needed. Note the Yellow bar it needs to be green and grow to the right as it charges. Until you get it to the far right we can't deduce whats wrong if anything is even wrong.

Post a new snapshot when you get to that point (about 8 hours). Then we can see where we are.

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Azeez будет вечно благодарен.
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