If you forget an account password in Lion or Mountain Lion, there are lots of ways to reset it. After that, click on the account you've forgotten the password for and choose Reset Password. Afterward, you'll get a nifty little program in which you can choose the volume (usually "Macintosh HD") containing the user account with the missing password. What that means is that your old keychain—the one with your old stored info—is lost if you can’t remember that password. You may start to freak out if you ever forget the password to log into your iMac or MacBook , but it's really not that big of a deal. We’ll show you exactly how to reset the SMC on any type of Mac (and any version of OS X) and the type of problems that it may resolve.
Typically, an SMC reset helps to resolve many power and hardware related issues that are otherwise unresponsive to troubleshooting techniques. Do keep in mind that by resetting the SMC you will lose power specific settings, like the time it takes to sleep a Mac and other customizations to power settings. The boot time after resetting a machines SMC can be a bit longer than usual, that is normal. Resetting SMC is different for non-portable Macs, but it’s still easy enough and the problems it addresses are the same. SMC stands for System Management Controller, a critical low-level component on Mac hardware. Now that your Mac SMC has been reset, the hardware issue you were encountering should be resolved, unless there is a greater problem or a different issue that needs to be troubleshooted separately.
Hopefully that will clear up your problems, if not it might be worth a visit to the Apple Store or a certified repair center.
Worked perfect to reset SMC on my 2016 MacBook Pro Retina model, thanks for the advice and it resolved the problem.
If following these directions does not work, try powering down, unplugging, then doing the shift, control, option, power thing then restart. I was running FileVault to save my files, but because I had wrong rights filevault terminates my Mac, so that it freezes and nothing more was working.
I reset the SMC twice in the last two weeks because the laptop works fine for a little while after doing it. I followed the instruction (pressed the 4 keys together for a few second, then released them together, before pressing the Power button on the top right and like magic, the screen was back on.
My Macbook pro 2010 cant even show a black or blue screen, no beep, it seems completely dead. Done SMC half a dozen times with and without power cord as well as holding the buttons down for 10 sec, reset Pram, done a restore, till I’m blue in the face. Hey, I have an old (7 or 8 years?) Macbook that’s developed all kinds of quirky issues like staying awake when the lid is closed, esp. Also, I love that this article was written more than five years ago and continues to be of help!
Finally, I went to a specialty electronic shop and bought a more powerful wifi unit (dual diversity with two antennaes) and that fixed the poor reception problem. Also the newer units have a higher gigabyte trabsfer rate than the older units, so if your is more the three years old, best to replace it. Worked like a charm on an 08 MacBook getting critically low on power while miles from the home office. Thanks for this info,Mac Book Pro Retina took a pretty hard dive off of front seat of truck tucked in a soft carry bag due to having to slam on the brakes for a car that stopped abruptly in front of me(no accident but front seat valuables took a dive to the floorboard) when I got home and powered up the Mac I had a bluish screen with no control or visuals.
I learned this the hard way (resetting the SMC) by waiting for an appointment at the Genius Bar.
Ehmm… did any of you ever notice that following the SMC-procedure on Mountain Lion leads straight into your Mac-user account, even if it is password restricted? And there’s not much more frustrating than sitting down to log in to your Mac and finding that your mind is a blank and your password nowhere to be found.
We’ve covered the reset Password Utility before, in the context of preparing a Mac for resale. On the Recovery volume, open the Terminal and, at the prompt, type: ‘resetpassword’ then hit return. For the best possible security on your Mac, the account you use from day to day should not have Admin privileges.
If, however, you have set your Mac up with an Admin account separate to your normal user account, you’re in luck. Like all Unixes, OS X has a user account called “root” which is essentially the system itself — there are some things the system needs to run in order to work properly that mere mortals shouldn’t be allowed to touch. Note that even this won’t work if you have a Firmware Password on the machine (see the sidebar).
Several of the tricks described here involve using Command-key combinations to boot your Mac in alternative ways.
To set up an Open Firmware password, start up your Mac from an install disc, or from the Recovery volume as described above. Many times every month we get calls from designers or IT managers who need to reset a lost administrative password on Mac workstations. We’re posting this short illustrated guide to make the process easier next time it comes up. Bookmark this tip so you have it handy the next time a user forgets their Mac’s administrative password.


This hardest part of this technique may be laying your hands on a Mac OS X Install CD when you need one. When the installer starts, choose your language, and you’ll proceed to the welcome dialog.
Discover 10 things you must have in place to make sure your business could be back up and running again in the event of a disaster. See how my "karma" account is greyed out in the second screenshot above, with an orange checkmark next to its picture? What if the password you can't remember is your administrator password, and it's the only administrator account on your Mac?
Once your Mac finishes booting, you should see a bunch of troubleshooting options that are very handy when your Mac's having trouble, like Restore from Time Machine Backup, Disk Utility, and Reinstall OS X. I was trying reset my login password as I was in the pickle situation you specified where I am the only iser and administrator that cannot remember the password to be able to reset it. If so, you might enjoy hanging out with other like-minded folks on the Mac Geek Gab Facebook Group. All Macs include a built-in password reset tool that is incredibly easy to use.To get started, you will need to restart your computer. Do notice that the System Management Controller reset instructions are different for MacBook and MacBook Pro’s if the machine has an internal battery versus a detachable battery, additionally the procedure is different for desktop Macs than from Mac laptops.
No big deal, but if you have made many changes to your hardware behavior you will want to adjust stuff like sleep behavior again. Much like the name sounds, the SMC controls and managements system hardware for power consumption, battery charging and battery function, thermal activity and fan activity, LED lighting for keyboards and displays, GPU functionality with video mode changes and video output, sleep and wake, and other core hardware functionality on a Mac.
Sometimes resetting the Macs PRAM can be effective too, though there are times when further action is necessary as well. Subscribe to the OSXDaily newsletter to get more of our great Apple tips, tricks, and important news delivered to your inbox! I tried to just push them, I tried to hold them down for a little while… how do i understand that the SMC has indeed been reseted? After a hard reset and after trying to reboot from the recovery it only came the internet recovery option. This morning, I put my mac to sleep and the screen stayed black despite hearing the startup bell. It can only show a green light on the charger and can blink green on the machine if I remove the charger. I had an older D-Link wifi router bought from Best Buy, and the signal was sometimes weak and I too could not be more than 15 feet away to get a strong signal.
I tried a few different things and after almost resigning myself to a trip to the Apple Store I ran across this (two hours into it) and voila up and running.
It boots fine and I can tell by the sounds that it makes it to the login screen, but the HD continues to run and do various things by the sound of it which is weird.
I’m going to try the alternate SMC reset for non-removable batteries first, entering my password at the login screen, and the newly discovered keystroke sequence for putting it to sleep. If so, this is possibly a great by-pass for hackers who’ve gotten hold of you Macbook into your personal data. Well, it happens to everyone at some point, especially if you have just updated your password and can only remember the old password, not the new one. You will be prompted with this message saying that your user account password was reset but your keychain is not. And most people will tell you that a password should be difficult to guess — not something simple like your birthday or your cat’s name, or even a word you’d find in a dictionary.
Even the Mac’s password hint that shows up after three wrong guesses might not be terribly helpful — maybe it seemed like a good hint at the time. Obviously some of these tricks can also be used to reset a password on a machine that is not yours, so please use them wisely and honourably. You may recall that it’s not the most straightforward thing to get to, largely because of the power it possesses.
You could also restart your Mac and hold down the Option key, then select the Recovery volume when asked to select a startup disk — but Command-R saves a step. OS X’s Password Reset utility is a dangerous thing in the wrong hands, so Apple makes it hard to get into. Then choose the user account whose password you want to reset (namely yours) from the drop-down menu. You can unlock them using Disk Utility on the recovery volume, but you’ll need your password — and there’s the catch. That way if any malware happens to infect you (yes, it can happen to Macs) the damage it can do is limited. As long as the user account whose password you’ve lost isn’t the Admin, it’s easy enough to log in with the Admin account and change the password for any Standard user. All you have to do is log in with the Admin account, open System Preferences, click on Users & Accounts, then select the Standard account you want to log into. The pretty face you see in day-to-day usage that makes it all friendly and Mac-like is just that: a pretty face. By default OS X’s root account is disabled — it’s hidden from the prying eyes and curious fingers of humans. Rather than the usual Mac-looking boot routine, you’ll see something terribly scary and text-based. This launches Open Directory (a ridiculously geeky utility) and opens its preferences file — where user names and passwords are kept.


Replace “username” with the short (four-letter) username of the account whose password you want to change — for instance, “mjcp”. If reading this tutorial has given you pause to wonder if your Mac is secure enough, maybe you should set one up. Replace “username” with the short (four-letter) username of the account whose password you want to change — for instance, “mjcp”.
The most recent inspiration to get this tip written up comes from the in-house creative department at Organic to Go. First, as the box above points out, resetting a lost password won't change the login keychain password for that account.
What you want to choose for our purposes, though, is Utilities > Terminal from the menu at the top of the screen. I switched from my desktop screen, which I was logged in on, to a log in screen which asked me to enter my log in password.
Press the Command and R keys at the same time when the grey screen appears and hold them until you see the Apple logo. Yesterday, I was about to go to the Apple store and try to fix it, but I got it working last minute and didn’t go in. It starts with the fans running very high when charging the battery and it could just turn off suddenly at any moment. The symptoms certainly seem to point to SMC but doing the reset as mentioned above does not work. It flash off again (black screen again) i tried resetting the SMC and also the PRAM the black screen remains.? I took out the battery And it looks semi-exploded with a big bump on the outer side and a gap at one corner.
Enter a new password (twice) and a new password hint (make it helpful this time) and then click on Save. Ideally, you should have a separate Admin account that you use when installing and updating software, and the rest of the time use a Standard account. This is for security reasons — if you get root access, you can get up to all sorts of mischief, like for instance changing passwords.
An Open Firmware password adds an extra layer of security — before anyone can start your Mac in single-user mode, for example, they would need this password. Per the advice of another site, it was supposed to give me a prompt to reset after three incorrect attempts. In certain circumstances, resetting your Mac System Management Controller (SMC) can be a solution. Well, I started getting these restart messages every time my computer did start working, and had to keep doing this until the computer just gets stuck at the white loading screen with a grey spinning wheel under an apple sign(grey) also, this computer has the rounded edges and no, does not have the removable battery. Once you have your password reset, make sure to have a backup of all your passwords somewhere else that is not in your Mac.
Sit tight as your system boots into Recovery Mode.Click the Utilities tab in the top menu bar, select Terminal, type resetpassword and press Enter. This is sometimes necessary to restore normal lower level system functionality to your Mac, particularly for power and hardware related troubles. For people not understanding the instructions, you press those buttons, and yes, there is no feedback!-P but you just press power alone afterwards to reboot. In this video, I’ll show you how you can reset your account password in OS X Lion, in just a few easy steps. Unfortunately, you'll have to re-enter all of those passwords in a new keychain, which OS X will prompt your user to create the next time he logs in. If you set things up ahead of time, you can use your Apple ID to reset that password, and I wrote an article on how to do that a while back. Other sites are invited to link to any aspect of this site provided that all content is presented in its original form and is not placed within another frame.
I tried to run the MacBook without the battery installed using only the power adapter, but it boots without display still. I will note that if I click on the user icon above the username (Mine is a pink flower), it produces an orange check mark beside the username and the password box disappears. The Mac Observer is an independent publication and has not been authorized, sponsored, or otherwise approved by Apple, Inc.
All you have to do now is select the user account you want to reset, enter a new password or leave it blank and click Save.
There are also the options to sleep, restart or shut down at the bottom of the screen, a Id which I am terrified to do for fear I’ll lock myself out of my computer.
Then just simply restart the computer from the Apple menu and login with your new password. I’ve seen several forums that said people had contacted Apple support and received no help whatsoever. It's as easy as that.This method is very useful if you ever forget your password or if you need to get into a child's password protected computer.
But without your help I will be now at the Apple store and bought me a new hard drive or ship it to the care center.



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