Hello everyone so i have a macbook pro late 2012 core i5 8gb ram m, however i ve been dealing with a problem for a year now. Sometimes it stops booting or shutsdown at the boot logo it stays like this for like a couple of days, however this time the problem stayed for a week it boots rarely i tried resetting smc and ram still the same problem, i need help as soon as possible thanks!
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Urgent : Macbook pro rarely boots
- Thread starter RandomUser00000001
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It sounds like you may not have a retina MacBook Pro. If that’s the case, these computers are prone to having a failure of the cable that connects the disk to the computer, which can cause the symptoms you have. Apple was fixing these for free, but in case they’ve stopped, it should be an inexpensive and quick repair.
My bad. I could only find one "late 2012 Macbook Pro" and, according to Google, it is a 13": https://support.apple.com/kb/sp658?locale=en_US. It uses an SSD and there is no hard drive cable.
OP:
IF you have a non-retina (classic) MacBook Pro, pay attention to chrfr's post 3 above!
A failing internal drive ribbon cable will produce symptoms just as you have described, because the Mac "can't find" the hard drive or loses communication with it.
Often, replacing the ribbon cable will solve the problem.
The cable replacement is easy to do, just about anyone can do it.
Go to ifixit.com to see how to do it.
You'll need a Phillips #00 driver and a TORX T-6 driver
(you can buy these at hardware stores or right from ifixit, or on ebay).
IF you have the original hard drive, it might be a good time to replace it with an SSD, as well.
It will breathe amazing new life into the MacBook Pro.
IF you have a non-retina (classic) MacBook Pro, pay attention to chrfr's post 3 above!
A failing internal drive ribbon cable will produce symptoms just as you have described, because the Mac "can't find" the hard drive or loses communication with it.
Often, replacing the ribbon cable will solve the problem.
The cable replacement is easy to do, just about anyone can do it.
Go to ifixit.com to see how to do it.
You'll need a Phillips #00 driver and a TORX T-6 driver
(you can buy these at hardware stores or right from ifixit, or on ebay).
IF you have the original hard drive, it might be a good time to replace it with an SSD, as well.
It will breathe amazing new life into the MacBook Pro.
Late 2012 13" Retina means there is no sata3 interface with a separate cable for the power and sata cable. The MBP uses an ssd in a caddy which looks like an msata interface.
https://www.ifixit.com/Guide/MacBook+Pro+13-Inch+Retina+Display+Late+2012+SSD+Tray+Replacement/12822
https://www.ifixit.com/Guide/MacBook+Pro+13-Inch+Retina+Display+Late+2012+SSD+Tray+Replacement/12822
OP:
Do you have any kind of backup?
If not, BETTER MAKE ONE, and fast.
I'd suggest using CarbonCopyCloner to clone the contents of the internal drive to an external drive.
CCC is FREE to download and use for 30 days:
Carbon Copy Cloner - Download
Then... try booting from the external drive.
IF the external clone boots right up every time -- it would point to a hardware problem in the MacBook (of course).
If the cloned drive gives you slow/no boot symptoms that are pretty much the same as the internal drive -- then I would suspect the OS or something else "in software"...
Do you have any kind of backup?
If not, BETTER MAKE ONE, and fast.
I'd suggest using CarbonCopyCloner to clone the contents of the internal drive to an external drive.
CCC is FREE to download and use for 30 days:
Carbon Copy Cloner - Download
Then... try booting from the external drive.
IF the external clone boots right up every time -- it would point to a hardware problem in the MacBook (of course).
If the cloned drive gives you slow/no boot symptoms that are pretty much the same as the internal drive -- then I would suspect the OS or something else "in software"...
I did an apple hardware test, and it said no problem, i guess it's a software issue?
I am not sure how good the Apple hardware test at determining the exact issue but it still sounds like a hardware problem to me. I have never come across a software issue that prevents a machine from booting on a consistent basis.
When the machine does turn on, do the fans spin or spin at a high rate?
When the machine does turn on, do the fans spin or spin at a high rate?
If the fans spin at high speed when you turn on the machine from a cold start or sleep, sounds like a faulty sensor to me.
Was the Macbook exposed to moisture? Have you removed the bottom casing to examine the logic board?
Was the Macbook exposed to moisture? Have you removed the bottom casing to examine the logic board?
So i have installed the smc update v1. 2 whihch claims solves this problem and it seemed to stop, however i installed lately the mac os high sierra and smc update 1.5 or 1.7 and the problem is back again
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Moisture just a little bit and i have never examined the logic board
I recommend not booting the machine anymore as this may make things worse. I also recommend examining the board for any signs of corrosion asap.
This would have been useful information to have from the beginning. What you think is "just a little" moisture, and what your computer thinks is "just a little" moisture probably don't line up.
The liquid damage is most likely the source of your problem.
I never had a liquil spill on it, however there's quite enough humidity in my room and i find my macbook sometimes really cold
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Then you aren't seriously likely to have a moisture/liquid issue. Unless you bring a cold laptop into a warm and humid room you aren't going to get condensation - if you are then you need to change your habits and take proper precautions to avoid a condensing environment. Allow the temp of the laptop to come up to room temp in a sealed bag (that may take several hours), reduce the humidity in the room...etc etc
But if you haven't had liquid damage then its likely a hardware failure causing the machine not to boot - it may need some components reseating etc or possibly replacement. Has the machine ever been dropped?
But if you haven't had liquid damage then its likely a hardware failure causing the machine not to boot - it may need some components reseating etc or possibly replacement. Has the machine ever been dropped?
I still recommend examining the internal components for possible corrosion or some other potential damage.
I opened it today, and it waswquite dusty, i wiped the dust off however it didn't seem to work here are some pictures
of the inside. Thanks for your helph
