If your Mac has fallen victim to short battery life on Sierra, look for the problem on the Mac. Open Activity Monitor (can be found in Applications/Utilities or via Spotlight search), see what runs on your Mac right now. Check your autorun (apps that run when your Mac starts).
- Got a news tip? Press Releases. Coming right between the October 26 release date of the iPhone XR and the November 1 release of Apple’s fourth. A professionally focused Mac Mini.
- Adjust Date & Time on Photos - Mac OS. This video will show you how to use the Adjust Date & Time.
Here are all the steps you need to get your Mac started again. Just work through them in order, unless your Mac won’t boot after a failed operating system update. In that case, skip straight to step 8.
Check If the Mac Has Power First, check that your Mac has a power source. Yes, it’s silly and obvious, but anyone who’s done tech support knows that you have to get the obvious fixes out of the way first. So if your MacBook won’t boot on battery power, plug it in. The battery may be fully depleted, or could be malfunctioning.
If your You're almost certainly going to have to troubleshoot your MacBook power supply at some point. Here's how to do it.
Or turn on with the power adapter connected, make sure it’s connected properly and not damaged in any way. Try a different power cable, if you’ve got one around. Also, check that the port is clean. A buildup of dust can disrupt older MagSafe chargers. And while you’re at it, check your external hardware as well.
Disconnect any peripherals like printers or graphics tablets, as these can sometimes be the cause. If you’ve got a Mac Mini, make sure the monitor is connected and powered properly.
Run a Power Cycle The next step is to run a power cycle. This completely cuts all traces of power from the Mac and enables you to restart it from scratch. On a recent MacBook, disconnect the power cable and hold the power button down for 10 seconds. For an older MacBook, disconnect the power cable and remove the battery for at least 10 seconds. If you’re using a desktop Mac, disconnect the power cord for at least 10 seconds.
Now reconnect the power and try to restart your computer. This move may be enough to spring it to life. Holding the Power button down like this is the equivalent to pressing a “reset” button or pulling the plug. It works on phones, ebook readers, and pretty much every other gadget that doesn’t allow you to remove the battery, so is a good tip to remember. Boot in Safe Mode. When your MacBook won’t boot, try to remember what you were doing the last time it was working.
Were you installing apps, fiddling with fonts, or tweaking the system? If your Mac shows signs of life when you power it on—it won’t go past the Apple logo or login screen—then If your Mac won't boot, you can use several methods to try repairing it. Here's how to fix your macOS disk with Safe Mode, fsck, and more. May help you fix it. Press the Power button on your Mac and immediately press and hold the Shift key.
Getdate Format Sql Server
Keep it held until you reach the login screen, then continue as normal. Safe mode runs a bunch diagnostic tests, then boots a stripped-down version of macOS. This doesn’t load your startup apps, custom fonts, extra hardware features, or anything else beyond the basics. If your Mac boots successfully into Safe Mode, you can start uninstalling any new apps, disabling startup items, removing hardware, or undoing any other recent changes that may cause the problem. Reset SMC The System Management Controller (SMC) controls a host of basic Mac functions. It handles everything from the keyboard backlight, to battery management, to what happens when you press the Power button.
Is a good catch-all solution to many problems, including if your MacBook won’t start or it won’t wake up when you open the lid. There are a few ways to do it, depending on what model of Mac you’ve got: Desktop Macs. Unplug the power cord and wait 15 seconds.
Plug the cord back in and wait another five seconds. Restart your Mac. 2018 MacBook Pro + MacBooks With T2 Security Chip. Press and hold the right Shift key, the left Option key (Alt), and the left Control key for seven seconds. While keeping these keys pressed, hold down the Power button for another seven seconds. Release all the keys, wait a few seconds, then restart.
MacBooks Without Removable Batteries. Press and hold the left Shift, Option (Alt), and Control keys, plus the Power button (or Touch ID button) for 10 seconds.
Release all the keys then restart your computer. Older MacBooks With a Removable Battery. Remove the battery. Press and hold the Power button for five seconds. Reconnect the battery, and restart the MacBook. Reset NVRAM or PRAM.
NVRAM (non-volatile random access memory) is a special section of memory that stores certain settings a Mac needs to access quickly. Although problems with this are less likely to render your computer unbootable, resetting it as a precaution will do no harm. Older Macs used PRAM (perimeter RAM) instead. The process for resetting either is the same:. Press the Power button then immediately press and hold the Option (Alt), Command, P, and R keys.
Keep the keys pressed for around 20 seconds, even if your Mac appears to restart. If your Mac plays a startup sound, release the keys after you hear it chime for the second time. If your Mac has the T2 Chip, release the keys after the Apple logo disappears for the second time. When your Mac has restarted, you’ll find that some basic settings like time zone or volume level might need adjusting. Run Apple Diagnostics Hopefully by now, your Mac is up and running again. If not you can check for hardware issues.
This will check for problems, then either suggest fixes or show your support options. Disconnect any unnecessary external devices, such as a printer. You can leave your keyboard, mouse, and monitor plugged in if needed.
Press the Power button. Press and hold the D key. Keep it pressed until you see a screen asking you to select your language.
Pick a language, then Apple Diagnostics will begin running its tests. These take a few minutes to complete. When done, you’ll see the results of the test. Some will suggest quick fixes, and give you the chance to re-run the test.
Others will generate reference codes which you can look up on the. It’ll also show your. If there are no issues, then the fault likely is not with your hardware. On Macs released before June 2013, you’ll get the Apple Hardware Test instead. You activate it in the same way, and the principle is the same. Select your language, then click Test to begin. Use Recovery Mode Tools All Macs have a on the hard drive.
This boots independently of the full macOS and gives you access to a suite of tools for repairing your computer. To boot into Recovery:.
Getdate Format In Sql
Press the Power button. Press and hold the Command and R keys. Release the keys when you see the Apple logo. When it finishes booting, you’ll see a new macOS Utilities menu. The one to try first is Disk Utility.
This is a version of the same tool that’s available in macOS and enables you to scan and repair your hard drive or SSD. Select the drive and click First Aid to begin the repair process. There are a few more tools available through the Utilities menu. These include the Terminal for more advanced users. Reinstall macOS in Recovery Mode If you’ve gotten this far, then it’s likely that your problem is not hardware-related, nor is it a simple software fix.
The best solution now is to, or Need to restore your Mac to factory settings? Here's how to install a fresh copy of macOS and erase everything. You can do this through Recovery. Get started by pressing the Power button and holding down the Command and R keys. If you’ve got a recent Time Machine backup, you can restore that to see if it solves your problem.
If not, choose Reinstall macOS from the menu. When you choose to reinstall macOS you’re given the option to format your disk as part of the process. Don’t select this if you simply want to repair your installation—there’s no problem with reinstalling macOS on top of itself. Follow the onscreen guide to complete the installation. You’ll need to be connected to the internet, as the tool will download the operating system from scratch. Check for Other Warning Signs on Mac All Macs, whether a high-end MacBook Pro or an older iMac, have great reputations for reliability. But they can still run into problems.
Although it’s often relatively easy to fix a Mac that’s not turning on, it’s best to check for warning signs and patch up problems before they strike. Follow the advice in our guide to Every Mac user should keep these 8 tools around to fix any problems that may arise, like malware, hardware issues, and more.—covering everything from memory to malware—and you’ll keep your Mac running smoothly and problem free. Explore more about:,. My macbook pro mid 2010 was okay the night before until I tried to switch it on the next morning. I discovered it wouldn't turn on even after many trials to get it to start.
I left it for some time and came back to it but still had the same issue. So many thought ran through my mind as I couldn't afford this moment to change laptop, but a quick Google search brought me to your site and lo and behold the Shift+Control+Option and Power button simutaneous push restored it. Its working fine now and I appreciate that your site could help.
Thank you so much. Mid-2010 MacBook suffered what seemed to be a too fast battery discharge on normal usage. Changed battery, new one appeared to have low capacity value. Changed for another new battery, seemed to have greater capacity (according to System Parameters software) and much greater discharge time. Went through Battery Calibration process. All seemed well.
Installed remaining battery screws and back cover. Tried to start up; nothing. No light, no fans, nothing. Removed screws until the last known working conditions were duplicated; no change. Went through all processes suggested in above article, still nothing. Battery voltage at first 9-pin motherboard connector is 12.4 VDC. Anyone have any suggestions?
Getdate Format Sql
My Mac Pro worked until I updated the os to high Sierra. Don’t believe that is the problem. The Mac kept displaying something to do wth ICloud. (I can’t remember what about in particular).
I didn’t want to attend to that at the time so kept trying to get out of the iCloud screen. It was difficult but I managed to remove it but now my Mac won’t open. When it is switched on the screen awakens, the Apple logo appears, the progress bar starts, very very very slowly proceeds but that is as far as we get. Using a MacBook 2015-I know only 2 yrs old!
Last week it shut off while I was using it. Thought a power glitch, restarted but it was stuck in a loop. Moments after showing the Apple ID screen, it shut off, sounded the chime and over and over it went. Tried all the suggestions you recommended. Files all said ok, only problem it said was an issue with the camera. Yea it booted up and I saved data to a jump drive. Worked fine for several days then it shut off again.
Now none of the above have an effect - just chime and loop. Apple Genius say 2 options-pay a third party $500 to repair or have them try to wipe it for free. Took it to India this summer had a few power glitches there, destroyed a kindle fire and curling iron, scared something happened to my Mac.
It has had a few problems since I got back, had to reinstall Office. Any help, please.? Great article.
My computer is partitioned into two drives (Macintosh HD and BOOTCAMP). Thanks to this article I was able to open recovery partition. My main drive (macintosh) was grey and I could not run first aid on it. It also wasn't listed as a location to reinstall OS.
So I ended up installing MAC OS on the BOOTCAMP drive and was able to migrate files from the Macintosh drive. I am backing up right now just in case this happens again!
Macbook pro 15' retina, purchased in fall of 2013 for anyone interested. Hi thank you for an excellent article. Nice to see a Vancouver ite so active. I live in Australia but I went to UBC. My problem is with a Mac desk top but the suggestions you make apply to the top as well. I found the s that came with the computer.
I put in the Hardware disk and sure enough, miraculously, after pressing 'D key up came the Hardware Test screen.I pushed the Test box button and left the computer to do its test. After 4 hours the progress bar was within a centimeter of the end. But there it stayed even afetr leaving it overnight. What to do now? Any ideas would be most appreciated. THANK YOU - I thought my MacBook Pro was going to be a doorstop!
But I used the: Unplug the battery. Unplug the MagSafe power cable. Hold down the power button for about 10 seconds and continue to do that. While still holding the power button down, insert the MagSafe power cable and hold it for another 10 sec. Release the power button after those 10 sec and make a “normal” press as if you would normally turn on your computer. And it started right up.
I thought that was a crazy thing to do and how did anyone ever discover that it worked??? But it sur did the job on this laptop. Thanks again.
I have a Mac Pro (2013) running OSX 10.11.6 I recently swapped the drive for a 1GB and have had problems ever since. I reinstalled the OS as a clean install over the top of an install from Time machine. Problem is it won't wake properly from sleep. Nor will it boot properly unless I reset PRAM every time after disconnecting the display connected to HDMI.
Sometimes I get the log in screen - where password is required - and having input the password the same screen the appears again, When I input password for the second time it then lets me in and generally gives me the pages left open when put into sleep mode. It's so frustrating and bizzare behaviour. Disk utility tells me there is nothing wrong. Any thoughts welcome.