De batterij van de macbook was zelf ook al niet helemaal goed meer, gaf een service melding en viel bij ongeveer 35% zo af en toe uit.

Wat kan hier de oorzaak van zijn, wat valt er aan te doen om hem weer aan de praat te krijgen en is dit überhaupt nog mogelijk?

Buiten de problemen met de batterij werkte hij namelijk nog goed en nu doet hij helemaal niks meer.

Alvast bedankt voor mogelijke suggesties.

⟐ Answer accepted november 28, 2020 at 9:15 MST

Kan iemand me helpen zoals jullie zien werkt het scherm van mijn Macbook niet meer . Kan iemand me uitleggen wat de oorzaak is en hoe ik dit zou kunnen oplossen.

⟐ Answered juni 24, 2021 at 4:31 MST

⟐ Commented oktober 22, 2023 at 5:31 MST

Only thing is working - reboot laptop with headphones on it.

But, after system goes to sleep it again it doesn’t see the headphones.

So finally I have found a replacement and ordered it:

http://www.ebay.com/itm/181122080684?ssP...

After installation I will inform you if this fixed problem.

UPDATE: Just want to share with you that replacement of headphone port hasn’t helped at all. Dont know what to do now, so disappointed. I think this is something with motherboard then.

UPDATE 2: Today i will clean install whole OS. If that is software problem - that should fix it.

UPDATE 3: Clean install doesn't make any difference. Big still exists

⟐ Commented december 28, 2024 at 7:17 MST

I've been able to reboot using my magsafe charger, and then unplug and run off battery power. However, this only works for about 10 minutes before the computer acts as if the battery is suddenly disconnected and shuts down again.

Things I've already tried:

• SMC reset
• PRAM reset

Anyone have suggestions? Thanks in advance!

⟐ Commented oktober 31, 2022 at 5:24 MST

I was wondering if I can replace my 256 GB SSD in 2012 retina MBP with a Samsung 840 Pro Series MZ-7PD512?

http://www.samsung.com/us/computer/memor...

Regards,

Dax

⟐ Answered maart 22, 2021 at 11:22 MST

⟐ Commented mei 13, 2020 at 14:41 MST

"Calibrate your battery before using it: allow it to drain overnight, then charge it to 100% and drain it again until your MacBook Pro shuts down automatically. Charge it again and use it normally."

When I turned on my macbook after the replacement it showed a charge of 59%, then I used the the macbook until it turned off automatically, but the problem was it didn't go to hibernation on about 5% as usually, but it suddenly turned off on about 18% and all work in progress was lost. I tried everything including SMC and PRAM reset but the macbook stopped going into hibernation mode. I explained all of this in detail (including coconut battery screenshots) to the customer service and they send me a new battery saying the one I received was damaged.

Now I installed the 2nd new battery and turned the macbook for the first time on and it showed ca. 57% of charge and I continued discharging the battery by using the macbook and then I thought maybe I'm following the instructions wrongly.

The calibration instructions aren't entirely clear to me. For example the first part says "allow it to drain overnight". Does that mean I'm not supposed to turn on the macbook for the first time at all and the battery is going to discharge by itself to 0%? I don't believe the battery can drain to 0% after one night sitting in a turned off macbook, right? The second part of the instructions "then charge it to 100% and drain it again until your MacBook Pro shuts down automatically. Charge it again and use it normally" is pretty clear to me since it indicates you are supposed to use the macbook until it shuts down automatically.

So now I have a turned off macbook on ca. 40% of charge (initial delivered battery charge, 0 cycles) and I have no idea what to do since I'm afraid I could run into the same problems as first time. Could someone provide a clear step by step guide what to do after replacing the battery. Is it necessary to reset SMC again. If yes in which step? Thanks.

TL;DR: How to correctly calibrate the battery after replacement, step by step guide. What does "allow it to drain overnight" mean? To drain it by using the macbook or to let it drain in a turned off device (which would take way longer then only 1 night)? Is it necessary to reset SMC?.If yes in what step?

⟐ Commented augustus 19, 2023 at 5:18 MST

I've tried a micro fibre cloth, and special bought lcd cleaner, but its not worked, the smudges are all there still.

What is the best way to get rid of them if it is caused by some kind of soap? OR am i looking a paying for a costly replacement?

Please help!

⟐ Commented juli 07, 2023 at 14:18 MST

I just received my new MBP (8GB RAM & 256GB SSD) Retina yesterday, and I'm really crazy about it. It's a really awesome computer, but I hoped that it would run cooler than it has been.

I normally have the following things running at once:

Chrome (Canary - because, it's the only chrome which actually is supporting retina display)

Safari (same reason)

Skype v2 (just opened, not calling),

Diablo 3 installing

Teamviewer (opened, not using)

5-6 tabs in my browsers

I actually use SMC Fan Control for Fan control and iStat Menu to watch the temperature and the temperature is around 80C with the fan rotating at 2800 rpm

I don't understand why the MBP (which should easily run video encoding, gaming, and others...) runs so hot.

Can you explain this to me please ? I'm getting worried about my MBP.

Thanks

:S

⟐ Commented november 10, 2021 at 23:39 MST

I don't know what I have to do, I need my macbook on the go. I'm a repairing guy, but I need tips on where to start looking.

Than again I started looking online, and found out that there is a graphics card return program. Could my macbook be considered under this program with the problems i'm having?

This is how it looks right now after my first discharge and charge

@danj I've done another discharge, and this is the result after.

Maybe i should indeed take the battery off and try that to give the reset.

What tutorial should i follow to do this?

⟐ Commented maart 25, 2025 at 3:54 MST

Additionally, I cannot connect to external monitors and, occasionally, a white screen appears prompting a reboot while watching VLC or youtube.

Does anyone have an idea which part is causing the issue? I am thinking the dedicated GPU or maybe the entire logic board? I am hoping to fix this at home.

⟐ Answered april 08, 2021 at 11:52 MST

Sure enough, I'm home and I'm using it once again and the rattling has begun. When I close it and shake it, I can hear it knocking around inside. What's strange is that as I let the laptop cool down, the rattling minimizes or goes away.

Is there a chance that the battery glue is weak on this particular unit and is coming loose when the laptop is hot? If so, what should I do? The Apple Store geniuses are consistently unhelpful when I visit the store.

Edit: I might also add that the object seems LARGE, like what I believe to be the battery cells or a board within the unit. I've worked on laptops for 15 years and this is the first laptop I'm literally locked out of (pentalobe screwdriver on the way). Just wanted to do some research in the meantime. Not sure what to expect when I open this thing.

⟐ Answered mei 19, 2020 at 10:41 MST

Apple MacBook Pro "Core i7" 2.7 15" Retina 2012 Specs

Identifiers: Retina Mid-2012 - MD831LL/A

16GB RAM 750GB SSD card ( It was a $500 option on this model).

Machine came in "Out of Africa", with the trackpad not working. Running 10.11. It will move the curser a little bit and erratically. A wireless mouse was being used to navigate. I replaced the trackpad with a new one, also the battery at the customers request, ( he had me order these parts before I had a chance to see the machine). Problems persists. Ran virus check and caught a couple of minor Trojans and removed them. Problem persists. Booted from an external hard drive to see if it was a software issue 10.10.5. Problem persists. Safe Mode, persists. Works well with both wired and wireless mice.

I'm stuck. Machine was very dusty on the interior but I blew all of that out. Any ideas on where to look next?

UPDATE

Looks like there was a EFI Trackpad update for the 2012 MBP. A version 1.2 & 1.3. But they require 10.8 & 10.9 respectively. So i'm trying to install a 10.8 system on an external, download the update, boot from it and see if I can run it and fix the issue.

UPDATE 10/13 none of the updates will run on 10.11 system. Put in Target Mode, wiped the drive, did an internet restore to 10.8.5. Updates will not run nor will the trackpad work. I'm stumped. Senior Apple Tech is telling me to replace the logic board.

UPDATE 10/16 I have no idea of where to go on this one, without some help I'll have to send it in to Apple for a depot repair later today.

⟐ Commented januari 25, 2016 at 13:13 MST

I´ve poured some coffee over my MacBook Pro 15" Retina Mid 2012 and now some keys of the Keyboard are not working anymore. The rest still works fine.

I just wanted to ask, if it is possible to replace just the Keyboard itself without replacing the whole TopCase ?

Best regards and thanks in advance.

Tom

⟐ Commented mei 10, 2018 at 1:02 MST

⟐ Answer edited augustus 31, 2016 at 15:22 MST

The wierd thing was that i could keep using it for a couple of hours even though the percentage was slowly dropping. It stayed at 7% for a really long time. I watched 45 minutes of live football, did a little bit of web browsing, watched some youtube and worked in photoshop a little while. All of this from 7% down to 2% when it entered sleep mode.

Is this due to bad battery calibration or is it a faulty replacement battery? What do you think? It feels like i got a good amount of uptime from one charge but the percentage was way off.

Edit:

Here is a screenshot from Coconut when it’s fully charged.

Update:

Ok so i just reached 7% again after playing a youtube-clip for a couple of hours and playing in photoshop meanwhile.

This is what Coconut reports at the moment. The percentage dropped in two steps really. It dropped normally down to 41% and then it dropped rapidly to 29% and a few moments later down to 7%.

Can bad calibration cause this type of behaviour or should i suspect the battery?

⟐ Answered augustus 12, 2023 at 6:34 MST

Battery Information:

Model Information:

Serial Number: D86241131JYDNMGAH

Manufacturer: SMP

Device Name: bq20z451

Pack Lot Code: 0

PCB Lot Code: 0

Firmware Version: 511

Hardware Revision: 000a

Cell Revision: 1150

Charge Information:

Charge Remaining (mAh): 4974

Fully Charged: No

Charging: No

Full Charge Capacity (mAh): 8414

Health Information:

Cycle Count: 6

Condition: Replace Now

Battery Installed: Yes

Amperage (mA): 0

Voltage (mV): 11490

System Power Settings:

AC Power:

System Sleep Timer (Minutes): 0

Disk Sleep Timer (Minutes): 10

Display Sleep Timer (Minutes): 0

Wake on AC Change: No

Wake on Clamshell Open: Yes

Wake on LAN: Yes

AutoPowerOff Delay: 14400

AutoPowerOff Enabled: 1

Current Power Source: Yes

DarkWakeBackgroundTasks: 1

Display Sleep Uses Dim: Yes

GPUSwitch: 2

PrioritizeNetworkReachabilityOverSleep: 0

Standby Delay: 4200

Standby Enabled: 1

Battery Power:

System Sleep Timer (Minutes): 10

Disk Sleep Timer (Minutes): 10

Display Sleep Timer (Minutes): 2

Wake on AC Change: No

Wake on Clamshell Open: Yes

AutoPowerOff Delay: 14400

AutoPowerOff Enabled: 1

DarkWakeBackgroundTasks: 0

Display Sleep Uses Dim: Yes

GPUSwitch: 2

Reduce Brightness: Yes

Standby Delay: 4200

Standby Enabled: 1

Hardware Configuration:

UPS Installed: No

AC Charger Information:

Connected: Yes

ID: 0x0aa1

Wattage (W): 85

Family: 0x0085

Serial Number: 0x00425911

Charging: No

⟐ Answer edited april 05, 2019 at 1:22 MST

Since the lines are steady, I don't think it's the gpu fault...

Thanks in advance!

⟐ Answer accepted september 28, 2017 at 4:20 MST

Concerns about iFixit: Posts from around the Web

• “Be wary of ifixit batteries,” (Reddit.com, August 1, 2018.)
• OWC or Apple Replacement Battery? (Forums.MacRumors.com, March 3, 2018.) LarryJoe33’s post (July 17, 2017) says his iFixit battery drops from 65% to 7% consistently. He said iFixit was unresponsive, and accused iFixit of sending him a battery that which today sells on Amazon for $37.99. He says the battery was a replacement not OEM.

Concerns about OWC

• OWC, you've lost me. This is a long thread in 2014. The gist is that somebody who used to be happy with OWC had a bad experience with a replacement battery.

Concerns about iFixit and OWC

• '''User''' '''JPack''' in the March 3, 2018 MacRumors.com post above, says that the only place you can buy an OEM battery outside of Apple is from Rewa. He says, “You're wasting your time (and money) with iFixit, OWC, and B&H. They're often selling B-grade batteries that have been rejected. Hence your 65% -> 7% experience. You might as well buy from AliExpress as the sellers source the same B-grade batteries.”

Positive Posts about OWC

• Newertech NuPower Mac Laptop Batteries – Review. OWC sells Newertech batteries, hence the review. This guy gave them 9/10 for a rating.

⟐ Commented augustus 12, 2025 at 13:36 MST