My iPhone has connected perfectly until today, when it started doing the same thing as the iPad. All other USB devices work fine, and my iPad and iPhone both connect with the windows computers at work just fine. I've tested with both USB ports on my MacBook, and with several known working cords, both Apple branded and not.

I've done a lot of searching, and haven't found any definitive answers or solutions, but today I thought I would try something.

I use Windows 10 in VMWare on my laptop for work (and yes I made sure it wasn't running before trying to sync to make sure that wasn't causing the connectivity issues). But today I opened Windows on my MacBook, and when I plugged in my iPad I told it to open in Windows, and voila it connected to iTunes in windows fine and stayed connected.

This leads me to believe it is some sort of software issue on the MacBook side of things. I even tried closing itunes and just plugging my phone in to charge, and it again acted as though I was continuously plugging it in and unplugging it, but stayed connected in Windows.

Is there something I can do to correct this? I thought it might be an iTunes issue, but since it wouldn't even keep my phone connected enough to charge without iTunes open, I'm assuming it's an OSX issue.

Any suggestions would be greatly appreciated!!

⟐ Commented October 14, 2025 at 22:45 MST

Here's what's going on:

I have an A1226 15" MacBook Pro (mid 2007) with serial number: W872218YX92. I can't get it to turn on; whether it's plugged into the AC adapter or on a battery, I get no visible or audible response from the machine when I push the power button--none of the lights turn on, none of the fans spin, etc.

I've read about the nVIDIA 8600GT issue, but I don't get any response from the machine at all, so I'm not sure if that's what the problem is. The other thing I've read could be at fault is the 'Left I/O' board', but this thing won't turn on when using AC or a battery. One thing I haven't tried yet is to open it up and check the top cover power switch; is the power switch something that frequently breaks?

Lastly, when the MagSafe adapter is plugged into the machine, the LED on it always glows green--whether or not the battery is plugged in. When the battery is plugged in, the 'charging' LEDs on it do not light up or blink and thus the battery does not charge.

⟐ Answered July 10, 2025 at 23:42 MST

⟐ Commented December 19, 2024 at 14:30 MST

So, when I put my MacBook in the charger and click the on button it went on for 5 sec and then turned off. I pushed the button again and now I could login I looked at the battery it was still 80% so I thought that's odd.

Then when I logged in it shuts off again. I've tried for several times to turn it back on sometimes it didn't even turn on and sometimes it turns on and then it shuts off again after seconds.

I went to a computer store but they didn't know what was going on the guy said that he couldn't find anything weird in my MacBook (software) yes of course when the guy looked at it it worked. Until it suddenly shuts down and I was like: 'Yes that's the problem!' But he had no clue. All he said was: 'send it back to apple'

So another thing: I'm traveling and need my MacBook for my work (I'm a colorist and work in the film industry) I need it everyday.

Maybe something important: last June I Accidentally closed my MacBook with the charger between so my display broke. I replaced it, cost me lots of money, and then after 2 months it was loose (I haven't fixed it yet, been more than one month now)

I can move my display up and down for at least 1cm. I can also detach the black bar underneath the display from the display, think this used to be glued together.

I don't know if this might be the problem from the MacBook shutting down randomly.

Ps. Sometimes my MacBook doesn't shut off completely and the fans start making extreme noises. It's like my MacBook is frozen.

Mid 2015 with Retina display

• 2,5 years old
• Used daily
• MacOS Sierra

I've turned it on again and clicked the D that brought me to some sort of check. It said: nothing is wrong.

Now it just restarts randomly. It's better but still not 100%

⟐ Commented December 11, 2025 at 14:49 MST

Looking at the pictures below it looks possible....

Macbook Pro 2011 logic board:

http://guide-images.ifixit.net/igi/QWKKP...

Macbook Pro 2012 logic board:

http://guide-images.ifixit.net/igi/11bHZ...

Has anyone attempted it?

⟐ Commented October 06, 2023 at 6:48 MST

For what it's worth, I was just able to fix mine with the help of this list.

For me, the key was trying to start the computer with no RAM installed. After that succeeded, I went ahead and put a single RAM chip back in, and it started up.

What started the problem was the main battery getting too depleted, which seems to have an impact on other parts of the system.

Thanks, everyone!

⟐ Answer deleted March 05, 2022 at 15:10 MST

I purchased my Macbook pro 1.5 years ago in Aug 2010 (did not purchase Apple care for extended warranty) . Started getting kernel panics recently and after every panic attack the machine would beep 3 times repeatedly. However, after not bothering with it for many hours (busy with work) I would be able to turn the machine on and use it for 5-15mins and would experience another kernel panic. I recently took it to Genius Bar in UK and was advised it was a 3rd party conflict (Sophos anti-virus) issue. I was advised to delete Sophos and everything would be fine. But it wasn't the case and I had to travel to go again. This time I was advised that the technicians would run a detailed diagnostic test and they suspected that it was a Logic Board or RAM issue. Today I was advised by a store personnel that it was a "Logic Board " fault and had to be replaced (costs approx 400GBP). I wanted the technical details of the fault emailed to me so I could get a second opinion. Instead, I get an email advising me that I have to physically go to the store to get the technical details of the fault.This is so disappointing. It has lasted just 1.5 years and as a student I just don't have the funds to get this fixed (could probably get a decent PC for that money).

On Monday the Apple store informed me it was my Logic Board. I wanted to find out the exact details of what's wrong with the Logic Board and waited to hear from them for two days. Initially they said that I could not get this by email. Yesterday when I rang them again, I was advised that they were running more tests to make sure it was the Logic Board.

Today I get a call advising me that their diagnostic test LO AND BEHOLD highlighted that their "GRAPHICS CARD" ( Nvidea ) had failed. When I pointed out the whole "NVIDEA-MACBOOK PRO SAGA" genius bar member ( she was nice and empathetic) said to me that the problem with my GRAPHICS CARD was not the same problem. So, I asked her to specify what the problem was with " my graphics card". Apparently, they do not have the techinical knowhow (even it went to their factory or some sort of centre) to find out what was wrong with the GPU and all they do is plug in a gadget to test it. This seems like a party line that they have to tow. All in all, I will have to fork out 400pounds to get this fixed.

However, I am not going to accept this and am going back to witness the diagnostic test. I would like to arm myself with as much info as possible about this whole NVIDEA saga. Spoke to Apple Centre and they were very helpful. However, the ultimate decision to put in a new Logic Board FoC depends on the store manager.

People with new Macbook pro's (Nvidia GT330M) and not just the old GeForce 8600M GT seem to experience this as well. Help and suggestions are much appreciated.

Thanks

⟐ Commented May 13, 2020 at 15:01 MST

Was trying to instal el capitan on my macbook , the installation starts and after a few minutes stops and a messaging saying the os x could'nt be install on the computer, please contact the software editor to get help.

I called apple and they said they can't give me any tech support, i guess cause my computer is too "old"..

I tried a few times, can't go back with my old os and i'm stuck on the installation program.

I made sure before trying that my computer had all it needs to install it.

Is there a way to complete the installation or go back to my old os without loosing all my data? I did a back up but a month ago..

Thank you for your help!!

⟐ Commented November 13, 2025 at 7:48 MST

Error: 8000000000000003, Cannot load 'EFI/Drivers/TestSupport.efi'

Status: 0x00000003

Which sits there for about five minutes, then it restarts into MacOS.

Same result when I try to run AHT from a USB stick, except this time it shows the above message twice – flashing by so quickly I had to get a video of it to see what it said – then immediately restarts into MacOS.

The OS version of Apple Service Diagnostic works okay (it has an OS on it, and shows in the Startup Disk preference Pane), but the EFI version gives the same result as above.

I've reset the SMC and NVRAM, and reinstalled the OS (Sierra) numerous times, to no avail.

I ran both AHT (Internet & USB) and ASD/EFI successfully a couple times only a few months ago; something's changed, but I can't figure out what.

However, MemTest86 (which also starts up from an EFI driver from a USB stick) still works fine with the MacBook Pro. So it seems this MBP is now somehow allergic to Apple's own EFI driver?

The same hardware (USB stick for AHT, external HD or USB stick for ASD) works fine with four other Mac portables, and two of them can access Apple Diagnostic (the 2014 & later version of AHT) from the Internet as they're supposed to (the others are too old to do so). So the problem is definitely something in this MacBook Pro.

The MBP was showing other problems as well; I sent it to a repair service, who said the GPU needed fixing (apparently common in this model), which they did, and said the logic board now tested all good. But it still "Cannot load 'EFI/Drivers/TestSupport.efi'".

I spoke with somebody at Apple Support, who was mystified, suggested maybe it had something to do with the SSD? The SSD seems to work fine otherwise, starts up okay etc., and DriveDx (which gives detailed readout of SMART parameters) says it is good.

Anybody have any idea what the problem might be? I plan to sell this MBP, but can't do so in good conscience as it is, even if it seems to be working okay otherwise.

Thanks for your response, Dan.

Yes! This is an issue with in Apples newer MacOS EFI/SMC updates.

When I posted the above, I thought it was a problem with my MacBook Pro; I've since learned that it's a common problem afflicting hundreds (at least) of Mac users. It is beyond ironic that the software Apple offers to its users to diagnose problems with their Apple hardware… doesn't work. So we're all waiting for Apple to get off their collective posterior and fix it.

There's a ton of people encountering this Unable to launch Apple Diagnostics Apple altered the EFI so all versions of MacOS are effected from Sierra on up is where I've seen it.

Yes, I also posted my query at Apple Discussions: MacBook Pro 2013 - cannot load Apple Hardware Test, and was referred to the Unable to launch Apple Diagnostics thread (which now has 163 "I have this problem too" clicks, while mine has 5). See my posts here and here for more detail and follow-ups.

I spent an hour and a half on the phone with an Apple Senior Advisor on Tuesday (May 28) about this issue, trying everything he could think of (he apparently hadn't heard about this before), ending with sending a bunch of information, which he said would be forwarded to some "engineers", who would get back to me in a few days. I provided links to the two Apple Community threads and emphasized that there are over 150 people now waiting for an answer. I'll post whatever I hear in the Unable to launch Apple Diagnostics thread, for anybody who's interested in following the issue.

The Apple Hardware Test (AHT) repair doens't fix this in Mojave.

Not sure what you mean about the "AHT repair"; the link is to a very helpful post at GitHub that tells how to get and use AHT for various old Macs dated prior to June 2013, when AHT was morphed into Apple Diagnostics, which is now available only over the Internet (or from the Recovery partition in High Sierra or Mojave, as I discovered in my research). See my second post in Unable to launch Apple Diagnostics for more detail about AHT/AD. Anyway, AHT doesn't "repair" anything; it's a simple diagnostic utility – and it won't load/run in any of the Macs that Cannot load 'EFI/Drivers/TestSupport.efi'.

Apple holds the cards for their diagnostic software. You could try calling them most likely they'll send you to a authorized service center if there's one near you.

Oh, yeah, about that… All this started for me in early 2018, when the intermittent crashes etc. I'd been experiencing with this Early 2013 15" MacBook Pro finally became intolerable. I didn't want to be without a computer while I was figuring it out, so I bought a 2015 MBP (still new with warranty, found on eBay). I then took the 2013 MBP to the local AASP, asked them to diagnose it, for which they charged me $60. Presumably they ran Apple's in-house diagnostic utility/ies.(The guy said something about the "EFI version"; I didn't know what that meant at the time.) They told me the 2013 MBP was fine. (The new 2015 MBP turned out to have problems also, and I ended up struggling with both – along with my long-term chronic illness – all year, until finally early this year I got together enough energy to try to deal with them.)

But my MacBook Pro wasn't fine. So I bit the bullet and did some research, learned that both Apple Hardware Test and Apple's pre-2015 in-house diagnostic software Apple Service Diagnostic could be found on the 'Net. So I got them, figured out how to use them, and they both found both several memory problems and a few others that are more of a mystery to me (I'll be posting those elsewhere here to ask if anybody can figure them out).

I was able to run both AHT and ASD on the 2013 MBP several times, until suddenly in the last month it told me it Cannot load 'EFI/Drivers/TestSupport.efi'. (It still runs the OS version of ASD, but won't run the EFI version.) It seems likely the fact that I'd installed both High Sierra and Mojave on it a month or two before, which may have changed the Boot ROM version (I don't know what it was before) might have caused this problem. Although, as noted in my post at Apple Discussions, I recently experimented by installing Mojave on a 2014 MBP, which didn't change the Boot ROM version, and didn't cause the Cannot load 'EFI/Drivers/TestSupport.efi' error. So we still don't know exactly what's going on.

Anyway, the nearest Apple Store is too far away for me as well, and my experience with the local AASP does not give me much confidence.

The ball is in Apple's court.

⟐ Commented December 26, 2021 at 3:17 MST

The case on the back of the screen seems to have come unglued at one corner. When I close the screen one corner doesn’t sit flush. You can lift the flap up enough to see the glue that was meant to be holding it together. Is there a way of re-glueing this back? Or any other suggestions?

As you can see the screen is fine, still attached to computer, but the actual case or shell of it has come away.

When I pry it open a little it is possible to see where the glue was which stuck it down. Do you think I should try to glue it back? When I squeeze the lid down gently it fits back into place. If I were to glue it back is there a special glue I should use? A heat resistant one?

cheers

⟐ Commented September 09, 2019 at 22:22 MST

⟐ Commented April 03, 2023 at 13:18 MST

thanks

⟐ Commented January 08, 2022 at 10:08 MST

If I slowly close the lid to about half way, the lines will disappear.

Only to reappear when the lid is opened again. Obviously a connection problem. This is a work computer and the repair shop quoted work $3000+ for this repair. Ludicrous. Also, no apple care was purchased so this barely-more-than-a-year-old top of the line Apple computer is suddenly worthless.

I'm not afraid to open the case, but could someone direct me to the cable that I should unseat and reseat, or perhaps even replace?

Any help greatly appreciated.

⟐ Commented October 23, 2023 at 19:22 MST

⟐ Commented February 21, 2021 at 15:26 MST

I am sure this happens everyday, so this is not a knew question, but I am still curious if there is a DIY fix.

⟐ Commented November 08, 2023 at 13:44 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 have a problem here, anyone can help ? :p

Screen capture if the problem

Video showing the problem

Everything that's black on the screen displays green 'matrix' color.

It happens whether it's using integrated intel card or the dedicated nvidia.

By squeezing / moving the body of the computer the problem can disappear....

Looks like a faulty contact somewhere, i opened it and it seems the problem stops when i push around the right heatsink

I found some stuff around on the web and it seems it's a know probleme but nobody really seems to know what it is, ever heard about this ?

Thanks a lot

⟐ Commented August 31, 2023 at 12:52 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 October 31, 2022 at 5:24 MST

Sorry for my bad english. I'm using MBP unibody late 2011 2,2 ghz. Suddenly my MBP won't boot and horizontal lines appear at apple logo and than freezes with white screen. When I try to wait, my MBP starting to get hot and the fan speed is increasing. I already try the safe mode but it freezes again with blue screen and vertical lines. I also try to boot with recovery hd (holding down option key than choose recovery hd) but it freezes again with white screen. Can anyone identify the problem? Thanks in advance.

(I hope it's not the logic board because it's really-really too expensive for me)

⟐ Commented July 02, 2020 at 21:38 MST

⟐ Commented November 20, 2017 at 5:09 MST