I had a HDD crash two years ago to the day (great Christmas present Apple) and it kind of puts a dampener on things. I'm a little scared that because it won't let me into a boot device menu (which must operate independent of any HDD) then there's an issue ahead of that in the boot sequence, so possibly the motherboard is shot. I've booked into a Genius Bar appointment when the Apple stores reopen after Christmas, but I'm hoping that is a last resort and to be honest I'm unsure what they can do for me except to say it's a lost cause.Īre there any suggestions on what could be happening and why it's ignoring the startup modes? I would have suggested the keyboard not being recognised except the P-RAM command works perfectly, so it's obviously seeing it. It won't boot into recovery mode (command+R), safe mode (Shift), startup drive select mode (Option), diagnostics mode (D). Now this is similar to the issue here - OSX Yosemite won't boot after install on mid 2010 iMac - except I am unable to boot into any mode, and the only startup keys accepted are the P-RAM reset. I've restarted quite a few times and left it running up to six hours and still it doesn't boot. If you have NOT previously installed High Sierra, you can download and install this package (if running OS X 10.10 Yosemite or later) to install the latest. So I did a reset by holding down the power button, and when I turned it back on it went to the apple logo boot screen with a progress bar that gets to just below 50% and stuck there. Then yesterday when I woke it up from sleep it effectively froze - no mouse or keyboard input. Apple Diagnostics is a tool you can use to diagnose problems with your computer’s internal hardware, such as the logic board, memory, and wireless components. I upgraded to Yosemite probably 2-3 weeks ago and everything has been fine. I've got a 2008 iMac 27" and have the latest version of Yosemite installed (10.10.1 I guess). We're getting to drastic measures now. If there's a problem in your operating system, the solution is often backing up and reinstalling the OS. This is why you backed up your Mac at the start of the article.Really sorry if this has been covered before but I spent a good time searching and couldn't find any existing posts with symptoms to the same extent. If you still have problems, though, you'll have to try a few more things. If it does, you can try reinstalling it - sometimes that's all you need to get everything working properly again. Unchecked: Send diagnostics & usage data to Apple and clicked Continue. If the above steps don't work, and there's a specific app that seems to be causing the problem, your best bet is to uninstall it and see if your computer starts working better. Hi, I am trying to get VMware Tools working for Yosemite (10.10.5) guest VM but. Release all three keys at the same time.įor a Mac Pro, Intel-based iMac, Intel-based Mac mini, or Intel-based Xserve:.On the built-in keyboard, press the Shift, Control, and Option keys on the left side and the power button, all at the same time. If you have trouble booting into Recovery mode, perhaps due to problem with your drive, you can start recovery mode from the internet by holding Cmd +.Press and hold the power button for five seconds.įor a MacBook without a removable battery:.Resetting the SMC depends on the type of computer you're using. Hold the keys until your computer restarts and you hear the startup sound a second time.Before the grey screen appears, press the Command, Option, P, and R keys at the same time. The parameter random-access memory (PRAM) and system management controller (SMC) are in charge of a lot of important things on your computer (for a list of things, check out this article on resetting the PRAM and SMC). If you are unable to start the diagnostics, then perhaps you did not follow the steps correctly. If there are a lot of permissions that need to be repaired, this could take a while, so grab a cup of coffee. There is only one instructional document: OS X Yosemite- Use Apple Diagnostics or Apple Hardware Test. Once the verification stops running, click the Repair Disk Permissions button. You'll almost certainly see a number of permissions that need fixing.
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