Zapper la pram mac osx

Would you rest work with my laptop? I think its daylight robbery. I would highly appreciate if you could mention an alternate way fix this if the above method doesn't work. You also fixed my dodgy trackpad which I didn't even know would be fixed by this. Thanks sooooo much, I owe you one. No problem! Really glad that it helped. My MacBook Pro has been acting weird, and today while in light use my acreen turned white with horizontal gray lines so I shit off and it now appears to turn on with a gray horizontal line screen and the gray bar below the logo only fills halfway and doesn't turn on.

I'm in shock and scared the laptop is toast. Could you please guide me with what may be wrong with it and what is the safest next step? Apple has a special program going til Dec 31st where they will replace your logic board for free since and macbook pros have a common problem with the GPU. Grey lines like that is the start of your GPU going bad. I'd take it in and have it fixed for free while you still can.

My Mac Mini claims it has a max capacity of 8 GB but crucial.

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Is this true? I've never heard of it working that way, but it certainly seems possible. I'd give it a shot and see what happens. Thanks for this post, Dann. Hi all.

Could this options solve my issue? Thank you. This happened to me after installing El Capitan, turns out my serial number was wiped from my computer and therefore I couldn't access those you mention.

Also had trouble with switching my computer on etc. I had to visit the Genius Bar at the Apple store and while they managed to rewrite my serial number, they couldn't work out why my computer would take multiple attempts of holding down a number of keys in order to switch on and suggested it was time to get a new one! They did not mention an SMC reset and did not attempt this. I came across the SMC reset from googling and it seems to have sorted out my macbook air. Surely Apple should have told me about this, my macbook air showed all the signs of needing an SMC reset.

I've never heard of that serial number issue; that's really weird! Did they say how that might have happened? Glad that the SMC reset seemed to help—is your computer still working alright? And yes, I'm surprised that the guys at the Genius Bar didn't discuss that with you. Seems pretty likely that they would have known about the warning signs and potential fix. Unfortunately after posting this I had issues again where it would shut down when the progress bar was at a certain point. I paid someone to try and fix it he mentioned replacing the hard drive but all he did was wipe everything, including my serial number again.

It did work for a few days though and it still switches on alright but now where my wifi sign is it says wifi: After looking online it seems the remedy for this is also smc reset which isn't working. Apple don't understand how my serial number was wiped, the guy said he'd never seen it before but I only knew to check mine because of others it had happened to after installing El Capitan, he said it could possibly be due to that.

I think my MacBook has had it, if Apple can't help me I don't know how to find someone who can. Hello this happened to me before so i needed to restart my pram and it worked cntrl alt p r but it happenednagain and it doest work anymore Makesthe sounds correctly but The screen says black. Moving what was plugged in around and restarting seemed to fix it. But now when ever my computer goes into deep sleep or shits off, the fan kicks into high speed mode.

I had the same issue with my old iMac but back then you reset your SMC by holding down your power button for 15 secs. I've never heard of a USB hub doing anything like that. Have you found a solution to this issue yet? Sounds like something Apple might have to fix.

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I am going to see if doing a clean instal will work; waiting to have internet reinstalled in my apartment. There are reports of this happening with USB hubs. I had the same issue years ago with a iMac, back then the SMC could be reset by the power button. Not any more. It's your hub. They will sometimes trigger your mouse Unplug it and you will not have the issue anymore. Thank you! She was suitably impressed! Before I wrote this article, I wasn't aware of it either.

Turns out it's extremely useful! Hopefully this article has helped get the word out—I'm sure there are a lot of people who could benefit from knowing what it is and how to reset it. This error message pops up: I looked around online a bit, and I found a forum post that has some advice for this issue: I am having to reset the pram and the smc every single time I turn on my computer.

I can't put it to sleep of I have the do the pram reset. Whey is this happening? What can I do? You might want to bring your computer into an Apple store and have their techs look at it. That's not a problem I've come across before. Can you be more specific as to the steps for a machine like mine? I have a Macbook Pro retina. You say "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.

My issue is that I get a popup about icloud password every time i boot up. I recently switched to two step verification, and I think it's asking for an app specific password. Power down the computer normally 2.


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Ensure power cord is plugged in 3. Does that sound like the physical steps you're using? If so, how can there be no confirmation that something is happening like with PRAM, at least it dings over and over again if you hold down all the buttons. Maybe I'm just doing it wrong. Yes, that should say "release all four keys at the same time. That's why "turn on the computer" is the next step. So you're correct in thinking that there's no confirmation—I'm not sure why that's the case, but I've never had any sort of confirmation on my machine.

What happens when you enter your iCloud password? If you look closely you will notice on the MagSafe power cord where the magnet plugs into the side of the computer the tiny LED light will change from Amber color to green and back to Amber that is the confirmation that the SMC was reset. The MagSafe light indicator, you mean? I would imagine that it is.

Have you tried resetting the SMC on your computer? I literally cannot thank you enough. You saved me so much time and money and Apple-related stress, this was the only thing that worked! I'm really glad to hear that it was helpful!

How to reset NVRAM

This is a common fix that a lot more people should know about. That's a problem. Everywhere I've read the SMC advice, it says to remove the plug "for 15 seconds". I assume it means "at least" 15 seconds - or is the time critical? As far as I know, it's at least 15 seconds, and it doesn't have to be exact. As for turning your computer off at the wall. I'm not sure. If you want to reset the SMC, though, I'd use the procedure above. You shouldn't need to reset it every night.

That's a tough one. I'd head to an Apple store. I'm not sure if there's much you can do about that! Hi, read through all of these posts and wondering if anyone can assist? I have a 15" Macbook Pro with Retina display that is just over a year old and it will not turn on. I'd bring that to the Apple store; if neither of these resets are helping, you might need some more serious work done. Let us know how it turns out! Hi Jeff, did you manage to fix your mac? I have the same Macbook with the same problem and mine is only a year old as well this month. Please share any new information you might have.

Hello, I have an MacBook pro that is randomly shutting down on me anytime that I try to run some hefty programs, and even sometime if I run more then one program.

How to reset your Mac's NVRAM, PRAM, and SMC

Sometime just starting her up make it shut down. I have trying to restart the SMC, but I am not sure if I did it correctly or that was just not the solution. Any suggestions? Have you tried resetting the PRAM as well? Also, means the computer's four or five years old, so you might be having some age-related problems; that's about how long mine last when I use them all the time. I did the shift safe mode restart thing and it stayed loading for about 25 minutes, now I just tried restarting the pram but this is also taking a while to change, how long does it take until it boots up?

I started having problems while plugging a USB in the computer and then it froze. Now I just have a grey screen with the apple logo and a loading dotted circle moving. It certainly shouldn't take 25 minutes to boot. Hopefully that'll get you back up and running! Hi,I have an 06 macbook, for a while the battery has been unrecognised and it shows the x symbol where it should be a thunderbolt Iv reset the smc with an initial change but then defaults back to the x symbol..

This evening I replaced the connection from the logic board to the battery and still no further forward after the resets I checked with a Mac repair shop and their is no fault with the battery I'm at a loss really, any ideas? Thanks in advance, Dec. Though I have to say that you've been able to keep a Macbook running for 9 years!

That's pretty impressive. After doing a little research, I haven't come up with a whole lot on this. Some people have seen the X symbol when they have a bad battery, but if the shop says that the battery's alright, and you also replaced the connection from the logic board, I'm not sure what else you can do. Call Apple, maybe? They might be able to help out. I have to say I have exactly the same problem If I start again, same process I have tried the PRAM reset?

Macbook Air keyboard became completely unresponsive.

How, When, & Why to reset the PRAM & SMC on your Mac

Was able to shut it down but now it won't turn on. I tried the SMC reset but it still won't turn on. Power indicator turns green for about a second after the reset so it seems to be getting the message but it still won't power on. Have you tried a PRAM reset? Of course, your Mac may just be at its performance limit. Each new version of the macOS seems to need just a bit more processing, graphics, or disk performance than the last one.

Before you start, make sure you have a recent backup. Some of these tips involve removing files or performing actions that can result in data being removed. Startup Time Seems Slow Have you noticed that after installing Mojave, the time it takes for your Mac to start up seems to have taken a nosedive? Login Items: Sometimes called the Startup List, this is a list of apps or services that will start up automatically when you log into your Mac.

What can happen is the new OS no longer supports one or more items in the list. This results in a delay when you log in as each item tries to launch and then times out. Or the app could still work but takes a long time to launch. The fix is to clean out old unsupported apps and services from the Login Items list. Removing old or unsupported Login Items can help fix slow startup issues.

You can find instructions on removing items from the list in the Rocket Yard Guide: The SMC System Management Controller takes care of a number of basic functions, including controlling fan speed, power, and a good deal more. During startup, an SMC that is misbehaving or has corrupt information can delay the startup process. Likewise, the NVRAM non-volatile random-access memory , which stores configuration information, such as mouse or trackpad settings, keyboard settings, which disk is the startup disk, and a bit more, can slow down the startup process if the stored data is incorrect.

Safe Mode: Safe Mode is primarily a diagnostic startup mode that prevents most third-party items from loading.

MacBook Pro PRAM Reset

But it also verifies and repairs, if needed, any issues with the startup drive. In addition, Safe Mode will delete all font caches, kernel caches, and system caches, which are likely candidates for startup slowdowns. Just starting up in Safe Mode can fix many common slowdown issues. To find out how to use Safe Mode, read: Cache Files and Temporary Files: The Mac uses a number of cache files and temporary files to help speed up operation of the system, apps, and user interaction. For the most part, the Mac is perfectly capable of managing the cache and temp file system on its own.

But once in a while, especially when a large-scale update to the system is performed, such as installing a new OS, one or more cache files can become corrupt, or simply contain a lot of outdated information, so that using the data in the cache will slow things down.

There are a number of ways to check on and flush or clear the cache files. You can find instructions and tips for clearing out cache files in the guide: Tech Drive Space: It can slow down the startup process, make launching apps take a longer time than usual, and can slow down the process of writing and reading files stored on the drive.

How much free space do you need to have on the startup drive? You can free up storage space using the guide: Apps Performing Poorly: A leading reason for poor app performance is out-of-date apps that need to be updated to run smoothly with macOS Mojave. Assuming an update for Mojave is available for the app, upgrading an app is an easy task.

The new Mac App Store makes updating apps an easy process. Graphics Performing Poorly: But if your Mac is a bit on the creaky side of old, all those effects can tax the graphics and slow down your Mac. Even those of you with newer Macs may want to dial back on effects, to ensure you have the horsepower for workloads you may be undertaking. Take a load off your graphics system by reducing the use of motion and transparency in the user interface. Or, you could update your current Mac with one or more upgrades that can speed up performance, increase storage space, and provide better graphics performance.

Upgrade to SSD: By far one of the most effective upgrades to perform is to move your system from an older spinning hard drive to an SSD. An SSD will allow your Mac to read and write data faster than most spinning disk storage systems, resulting in faster boot times, faster shutdown speeds, faster app launches, and depending on the app, smoother app performance. There are a number of ways to upgrade to an SSD, including removing an internal hard drive and replacing it with a new SSD.

This can work for most Mac systems, including those using Fusion drives, which make use of a large hard drive as part of the Fusion storage system. An alternate method of upgrading to an SSD is to use an external storage system connected to your Mac, which you use to boot from. You can take your Mac to an Apple service provider to replace the battery. Published Date: Thu Nov 08 Yes No.