Macbook Pro (mid 2012) inbuilt Track pad behaving erratically after fresh install of Yosemite 10.10.2

I recently did a fresh install of the OS from online recovery. Mountain Lion was installed which I immediately upgraded to Yosemite 10.10.2. The trackpad started behaving erratically after two days. I seems that it started since I plugged one of my wifi router on the lan port. The trackpad is impossible to move as it seems to have a mind of its own. An external mouse connected works fine. Any help please !

Try setting up another admin user account to see if the same problem continues. If Back-to-My Mac is selected in System Preferences, the Guest account will not work. The intent is to see if it is specific to one account or a system wide problem. This account can be deleted later.
Isolating an issue by using another user account
Try booting into the Safe Mode using your normal account. Disconnect all peripherals except those needed for the test. Shut down the computer and then power it back up after waiting 10 seconds. Immediately after hearing the startup chime, hold down the shift key and continue to hold it until the gray Apple icon and a progress bar appear and again when you log in. The boot up is significantly slower than normal. This will reset some caches, forces a directory check, and disables all startup and login items, among other things. When you reboot normally, the initial reboot may be slower than normal. If the system operates normally, there may be 3rd party applications which are causing a problem. Try deleting/disabling the third party applications after a restart by using the application un-installer. For each disable/delete, you will need to restart if you don’t do them all at once.
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MacBook Pro mid 2012 15" - one RAM slot gone bad

Hi,
Has anyone ever had the issue with not working RAM slot? My MacBook Pro mid 2012 (non-retina) suddenly froze and after restart was beeping three times every few seconds. I found out that the beeping signals bad RAM. Bought new chips, and the problem still exists. My mac can now run on one slot with 4GB RAM.
I did check the placement of the chips in the slots, i also checked one slot at a time, and one of them has gone broken.
Any ideas on how to make it run again? or if it is possible to replace the slots?
Brgds
Marek
MacBook Pro 2,7GHz Intel Core i7 / OSX 10.9.4

The Apple-accepted cure for a dead RAM slot is a new logic board. Unless you ahve AppleCare, that will be an expensive fix.
An Apple service option is the "depot repair." Instead of working on your computer in the Apple Store, they send it to a centralized refurbishment facility where they fix anything they find wrong (except for cosmetic damage and damage from abuse like dropping) for a flat fee of a little over US$300. That is between 30 and 40 percent of the parts and labor charges if Apple installs a new board in an Apple Store. Sometimes they will install an new battery at the depot without increasing the flat fee.
The downside is that it takes about a week; for that level of cost savings, I could do without my computer for a week.
So take it to Apple and ask about a depot repair.
A low-tech and low-cost option is to expand on what you are doing now--using one slot. Although the official RAM limit on your model is 8GB RAM (two 4GB models), your model can actually handle a total of 16GB (two 8GB modules. You can ignore the dead slot and put an 8GB module in the good slot. My 2012 MBP has 8GB RAM and is completely happy running Mavericks.
Be sure to ONLY get the RAM from an Mac-savvy vendor. For over a decade I've bought all our Mac RAM from one supplier. This is their page for an 8GB module for your MBP model:
http://eshop.macsales.com/item/OWC/1600DDR3S8GB/
I would also trust Crucial on this one. For a change they recognize that your model can use more RAM than stated in Apple's outdated specs:
http://www.crucial.com/usa/en/compatible-upgrade-for/Apple/macbook-pro-%2813-inc h-and-15-inch%2C-mid-2012%29

My iPad 3 is not charging on my macbook pro mid-2012. It was working yesterday and it is not working now, and I'm trying to transfer files between them. How do I charge my iPad with my macbook without having to be a completely new computer?

I am trying to transfer files between my ipad 3 and my macbook pro mid-2012 and they will just not connect. I connected them yesterday and it worked fine. And i can not air drop these files into my ipad it has to be done through itunes. And i can not afford to buy a new computer. How do i get these two to connect without having to buy a completely new computer?

Computer USB ports, regardless of the computer maker, have a relatively low power output and thus are not good chargers. They will charge but it takes a long time. You should be charging your iPad from wall power, or a more powerful source like an in-car charger.
Buying another computer will not change that.

My Macbook Pro (Mid-2012) won't connect to an external display using my MiniDP to VGA Cable.

I'm on a Macbook Pro (Mid-2012) on Mac OS X 10.8.3 (currently downloading the update to 8.4). When I plug in my Mini Displayport to VGA adapter to my Mac, the screen flickers blue for a second and the Display Settings window detects the other monitor and allows me to rearrange the screen, but it does not project anything onto the other monitor. However, I tried connecting an Apple Thunderbolt Monitor to this computer today, and it worked. This wasn't a problem before, as I was able to connect this Mac to other LCD projects before. Furthermore, I don't think it's an issue with the adapter either because it's relatively new. I also tried plugging in the adapter of another Mac (which was working fine) into my Mac, but it didn't work either.
Here's what I've tried:
1. Restarting the computer with everything plugged in
2. Pressing Command + F1 when it's plugged
Any advice would be helpful!

Hi lancekatigbak,
If you're having issues with the display out on your MacBook Pro, you may want to take a look at the troubleshooting steps in the following article:
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/ht1573
Cheers,
- Brenden

MacBook Pro(Mid 2012) Can't connect to my Dynex TV with mini display port to VGA adapter

I have a MacBook Pro(Mid 2012, running OS X 10.9.4) and I recently just bought a mini display port to VGA adapter so I could hook it up to my dynex TV but when I connect everything my TV says no signal. Do I need to do something in settings?

Hi psikalis,
If you are having issues connecting an external display to your MacBook Pro, you may find the information and troubleshooting steps in the following articles helpful:
OS X Mavericks: Connect multiple displays to your Mac
http://support.apple.com/kb/PH13814
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/HT1573
Regards,
- Brenden

How can connect my macbook pro mid 2012 to my imac 21.5 inch mid 2010 ?? I want to use imac like a display for macbook.

How can connect my macbook pro mid 2012 to my imac 21.5 inch mid 2010 ?? I want to use imac like a display for macbook.

Target Display Mode: Frequently Asked Questions (FAQ)
with a mini display to mini display cable. Attach it to the Thunderbolt port on your MBP and to the mini display port on your iMac.
How do I enable TDM?
Make sure both computers are turned on and awake.
Connect a male-to-male Mini DisplayPort or ThunderBolt cable to each computer.
Press Command-F2 on the keyboard of the iMac being used as a display to enable TDM.
Note: In Keyboard System Preferences, if the checkbox is enabled for "Use all F1, F2, etc. keys as standard functions keys," the key combination changes to Command-Fn-F2.

Can I use my macbook pro mid 2012 as an external display using thunderbolt port

Hi,
I want to use my macbook pro (mid 2012) screen as an external display for a raspberry pi using a HDMI to Thunderbolt cable, via the thunderbolt port on the macbook pro. Would this be possible? Can the macbook pro's thunder bolt port act as an input and is any additional software required?
I look forward to hearing from you.
Thanks in advance!

Welcome to Apple Support Communities
You are referring to Target Display mode. Target Display mode can only be used in 27-inch iMacs and iMacs with Thunderbolt, not MacBooks Pro > http://support.apple.com/kb/PH11302
Unfortunately, you can't use the MacBook Pro as a display. It doesn't support the monitor mode

Macbook pro mid-2012 13" has very slow disk access

Until 3 days ago my macbook pro mid-2012 13" running OX 10.8.3 was running fine. Then, it showed very slow response anytime it had to access the hard disk. After doing the usual checks and disk first aid repairs to no avail, I booted from my external disk with an older copy of my hard disk and everything then worked as normal, except when I accessed the internal hard disk, then it crawled once again (spinning beach ball, took many seconds just to open a finder window and then several minutes to display the contents). I ran the Apple Hardware Tests and it said everything was fine, even though it tooks several minutes before the test would actually start. I also ran the program BlackMagic Speed Disk to find out if the disk was having transfer speed problems and it showed a respectible transfer rate (60MB/s), not great but not like the 0.3MB/s I was getting when I tried to back up the internal disk. I was using Carbon Copy Cloner to try to back up the internal disk but had to give up since at 0.3MB/s, it would take days to back up the 250GB on the disk. I found on the web that using "restore" in Disk Utility, I could do a disk copy without the file by file copy which allowed me to back up my disk in "only" 6 hours. Booting from my newly made copy on an external disk worked fine and ran at nearly normal speed (slightly slower since it was an external disk running through USB2). As a final attempt to prove this was a disk problem, I erased the internal disk and reinstalled OSX 10.8. I am still waiting for this install to finish, it has been 5 hours although the progress bar said it should be done in 20 minutes. This was fairly convincing evidence that it is not a software or settings problem. However, all my web searches could find no other case of a problem like mine. I presume I have a failed hard disk but as all the diagnostic programs say it is working fine, I was hesitating to bring it in without hard diagnostic evidence. If anyone knows what might be the problem, it would be much appreciated to hear from you.

It should not take 5 hours to install Mac OS X. There is something wrong with the disk. Try reformatting where you do a wipe of the drive (an select the option to write zeros which will remap bad sectors). Then try to install MAc OS X.
I got this information from here:
http://reviews.cnet.com/8301-13727_7-20064489-263.html
Back up your data.
Use Time Machine or a system cloning utility to create a full and restorable backup of your data. If you suspect bad blocks, then when cloning you might consider not using a "block-level" copy process, since this will likely run into problems.
Boot to the utilities DVD.
If you have a boot DVD for a tool like Drive Genius or another drive utility, then boot to that; if not, use your OS X installation DVD (once you select your language, open Disk Utility from the Utilities menu).
Format the drive.
Using your selected utility, format the drive and check for bad blocks. If you are using Disk Utility, click the Erase tab, click the Options button, and then select the option to write zeros to the disk (you do not need to do multipass erase options, as this will provide no additional benefit for managing bad blocks). Writing to zeros may take a couple of hours depending on the size of the drive, but when done the drive will have remapped any blocks that were not reliably read.
Restore the OS installation.
If you have used Time Machine to create your backup, boot to your OS X installation DVD (if you are not using Disk Utility) and use the option in the Utilities menu to restore from backup. Attach your Time Machine drive and then proceed with the restoration, selecting the newest backup as the one to restore to your system. If you have used a system cloning tool, then attach the cloned drive and boot off of it (hold the Option key at start-up to select it from the boot menu). When you are booted to the cloned drive, run your cloning utility to copy the installation back to the computer's main boot drive.An optional approach here is to perform a full reinstallation of the OS from your installation DVD, and then migrate your data, applications, and settings from either the clone or the Time Machine backups using Apple's Migration Assistant.

Macbook Pro (Mid 2012) Startup Time Increased

Hi everyone,
I have a Macbook Pro (Mid 2012) non-retina model. I have an upgraded SSD (Crucial MX100). The startup time from switching on to the login screen is usually around five seconds but since this morning the time has increased to around 40 seconds. When the power button is pressed, the tone sounds and the screen lights up but it takes quite a while for the apple logo to appear. I haven't added or removed anything or changed any settings since before this happened. There doesn't seem to be any changes to the performance of the computer once it has started up, or the time taken from the password entered for the bar to load (Yosemite).
My hard drive cable once broke and I had it replaced at an Apple store (if that means anything to anyone). If anyone could give me any possible explanations or advise on how I can return the boot up time to the normal time.
Thanks,
Ben

    Select Macintosh HD as the Startup Disk.
“Set the default startup disk”       http://support.apple.com/kb/HT1310
   Reset PRAM.      http://support.apple.com/kb/PH18761?viewlocale=en_US&locale=en_US
   Start up in Safe Mode.   http://support.apple.com/kb/PH18760

Macbook pro mid-2012 GPU-panic

Hi, my Macbook Pro mid-2012 has recently started rebooting sporadically. After some investigation I found out that it is caused by GPU Panic which happens EVERY TIME when discrete GPU (NVidia 650M) is enabled and its temperature goes over 64-65 degrees (Celsius, according to iStat).
It seems it started to happen after one of the OS updates.
Did you faced this issue? Is it software or hardware related? Are there any workarounds/fixes?
Now I am using gfxCardStatus to use Integrated GPU only, but it makes not possible using any 3D-games on this laptop.
Thanks,
Nikolay

Are you running any anti-virus or internet security software? Any cleaning, tune-up, "keeper," or optimization apps that did not come preinstalled?
Are you set up to do torrent downloading?
Are you using backup software other than Time Machine, like that which comes bundled with a external hard drive?
Are you using an online backup serviceother than iCloud (Carbonite; MS OneDrive; Google Drive)?
Those can run up the internal temps.

Migration Assistant can't find External HD on MacBook Pro Mid-2012

Hi, I have a MacBook Pro Mid-2012 running OS X Mountain Lion 10.8.2 and I am trying to use Migration Assistant to transfer Time Machine backups that are on my external hard drive, that I backed up from my old MacBook Mid-2010. The problem I am having is that Migration Assistant can't find my external hard drive. My MacBook Pro can find it when I plug it in (I see it in Finder), but Migration Assistant can't. Can anyone help or should I go to the Apple Store? I need help with this problem as soon as possible.
Thanks in advance,
- Daniel 

Since no one replied I figured out how to do it myself.
1.) First I plugged in my external hard drive with my Time Machine backups on them, then I opened Finder and click on my external hard drive under devices.
2.) Next I clicked on and opened the folder named "Backups.backupdb"
3.) Once inside that folder I could see folders with the backups from Time Machine and all of the folders names were the date I backed up that backup. I clicked and opended the lastest backup folder.
4.) Inside that folder, I clicked and opened the folder named "Macintosh HD"
5.) Inside that folder, I clicked and opended the folder named "Users"
6.) Inside that folder, I clicked and opended the folder named "Daniel" which was my Username on my previous Mac.
7.) Finally I could see and access all my folders from my Time Machine backups from my previous Mac.
Keep in mind this is only helpful if you are trying to access old backups (backed up from another Mac) on a new or different Mac. (Sorry for the blurry images)
Hope this somehow helps someone else,
- Daniel 

Macbook pro mid 2012 no retina performance drop after efi

Hi, mi macbook pro mid 2012 no retina after efi update the performance are too slow, thats is the same problem with retina, please fix it, in osx mountain lyon the aplications that used every daywith video is poor, in bootcamp with games is the same problem, the cpu clock drops from3.3 ghz to 1.2 ghz or more. Waiting for a mew efi update bescause my mac is the same that a macbook air

No Apple hasn't officially stated anything about this issue. After I updated to EFI Update 2.0 I noticed the issues and started doing my research and found people in the Macrumors forums having the same problems and eventually I was reading that users that didn't update yet weren't seeing the update in their updates meaning Apple pulled the update from the servers. Other users reported after calling Applecare that they were aware of the issue.

Adata sp900 sdd 128-GB ssd, optibay optical drive to replace superdrive, and 16 GB upgrade for macbook pro mid 2012.

Hello everyone,
Thank you in advanced for all of the support. This is my first post to the communities. I just bought a 2.9 GHz core 17 processor MacBook pro mid 2012 13" with 8 GB of RAM and I am in the process of upgrading it. When I bought the MacBook pro originally, I was told that I would never mac out the performance because I do not do a lot of photo/video editing. This is true, but I am an academic researcher and tend to multitask often, having 20+ safari tabs open, SPSS (a statistical program), full screen mail app, full screen calendar app, and preview, iTunes open all at the same time. I often get slow performance and error messages that state low memory. This is why I am interested in upgrading the laptop. I am getting ready to go to medical school and I want to have a powerful laptop. I also want to future proof because I plan on having a dual boot system to mac OS and windows OS.
Because I know I will be maxing out the performance of the computer, I want to take full advantage of upgrades, especially now because the cost of the components is reasonable at the moment. The following are the proposed upgrades:
1. Upgrade my current 8-GB ram (2x4-GB) with 16-GB ram (2x8-GB). I plan on using crucial RAM.
Crucial 16-GB Ram: http://www.amazon.com/dp/B008LTBJFW/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&coli d=2B1KHELSPJPNN&coliid=IYGJWGQDH8LV0&psc=1
2. Replace my optical drive with a hard drive. I will place a SSD into my current hard drive position and then install my current HDD into the optical drive bay with the optibay optical drive caddy. I am doing this because I plan to use the SSD as the boot drive and my current HDD as my backup and files drive. I am putting the SDD into the HDD because I have read it is better to place it in this bay for performance. I will put the other HDD in the optical drive because the performance of that one will not be as important.
Adata SSD: http://www.amazon.com/dp/B008LTBJFW/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&coli d=2B1KHELSPJPNN&coliid=IYGJWGQDH8LV0&psc=1
Optibay Optical Drive Caddy: http://www.amazon.com/dp/B0058AH2US/ref=wl_it_dp_o_pd_nS_ttl?_encoding=UTF8&coli d=2B1KHELSPJPNN&coliid=I3GI8MGWAKXY79
My questions:
1. Is the listed RAM appropriate and sufficient for my MacBook pro?
2. Is the listed SSD appropriate and sufficient for my MacBook pro?
3. Is the listed Optical Drive Caddy appropriate and sufficient for my MacBook pro?
4. Is there still a firmware problem that does not allow for SATA 3 (6Gb/s) support in the optical drive?
5. Would it be easier to format the new SSD outside of the MacBook using a SATA to USB adapter?
6. Does working on any of the listed components void my AppleCare (I plan on keeping all of the original components so I can replace them, if I ever need to see apple support)?
7. What is the best way to put Mavericks onto the SSD to make this my boot drive?
8. What is the best way to make all of my files remain on the HDD, but link to the SSD with the operating system?
9. Has anyone ever successfully upgraded to 16-GB RAM and used their optical drive for a secondary hard drive?
10. Is there any miscellaneous advice for this project?
Please feel free to give partial answers. I know this was a lot of information, but I wanted to be efficient in my post. I am very appreciative of everyone who will contribute.
Thank you!

rmichaud91 wrote:
Hello everyone,
I just bought a 2.9 GHz core 17 processor MacBook pro mid 2012 13" with 8 GB of RAM
16 GB of RAM is the best you can do.
The optibay HD will null and void your warranty.

Macbook Pro Mid 2012 15" Retina - Display blackout on restart.

I am having a major issue with my 15" Retina MacBook Pro (mid 2012). When I shutdown the Macbook, and boot it again later, it is not showing anything on screen.. Even the grey screen on bootup.. Completely black.. I can hear the startup chime, and a bit later, keyboard backlight turns on, which is indicating that the boot process is completed.. But no display.. Even for 15-20 min.. I cant even access Bootcamp and Apple Hardware test.. (Even if they are available, I can't see them on screen.. Fully black.. And I can't know where to click on what, in that darkness..)
But one small thing I found was, when the keyboard lights up, I just closed the lid.. It then goes to sleep.. Again opened it.. I found the screen working normal, after a small flashing of Blue screen.. I'm thinking that this problem occurs only at startup, but not at sleep.. This is not a solution, but a temporary remedy..
Can anybody help me over this issue..??

Hey SreeHarsha Vardhan,
Thanks for using Apple Support Communities.
Sounds like you are having trouble with the screen on your Macbook. If you are not getting anything on the screen, take a look at this article.
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/HT1573
Have a nice day,
Mario

HT3986 Where can i download the driver for my network card? i have a macbook pro mid 2012, and are using windows 7 ultimate

Where can i download the driver for my network card? i have a macbook pro mid 2012, and are using windows 7 ultimate

uhm hey guys,
idk where else to get help so ima try here,
i got windows 8 installed with bootcamp on my macbook pro late 2010 (5, 5) and theres no sound coming out of it, so i installed an nvidia audio driver (idk, it could be the incorrect one) but i have nvidia GeForce 320 on my macbook.
do you know what i should install ?
but when i go onto my osx the sound is fine, so i figured im missing something on windows 8
Orrrr could i just go out and get parallels and hope it doesn't get the same problems?

Macbook Pro (mid 2012) inbuilt Track pad behaving erratically after fresh install of Yosemite 10.10.2

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