iMac 27" Late 2015 BLACK SCREEN PROBLEM FIX

Рет қаралды 261,673

7 жыл бұрын

Do you have a 27 inch iMac that all of a sudden goes black screen and totally unresponsive? This happen to me too and eventually, the iMac wouldn't even turn on!! (or at least the screen wouldn't). So after tryiung some things and having what I thought was smoke come out the back, I finially fixed it! So unplug the imac, remove the cover where your RAM is. Eject the RAM. Plug back in the iMac. Power on the iMac with the RAM ejected. You'l here a long tone and might see a error. Power off your computer by long holding power button. Unplug your computer. Put RAM back in, hold down power button as you plug in the power cord. Worked for me and I have not experienced any black screens since!
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Пікірлер: 407

@ashtonpeasley9093 2 жыл бұрын

Just wanna say I frickin love you man. Spent weeks trying to solve this problem as a studio musician and nothing worked until this. Huge thanks!

@JRESHOW 2 жыл бұрын

So glad it helped!!!

@paulv8453 4 жыл бұрын

I too have a late 2015 iMac 27” & had just updated to Catalina. I had a black screen afterwards. I tried doing to command, option + p & r thing & nothing. This was the ONLY thing that worked + I got to see how easy it is to upgrade my ram. Thank you! 🙏🏼

@tomwarsop4563 3 жыл бұрын

I tried everything to fix this and nothing worked until I tried this. Now working perfectly, thank you!

@dreamquestmedia4527 5 жыл бұрын

Ur a Freakin hero! Thought my 2012 iMac had finally given up on me. It’s was going black every 1 or 2 min. What a save! Worked beautifully! Many thx!!!

@frankbiz 3 жыл бұрын

This is great that you helped so many people, I'm going to try this on my father in law's 27" and hopefully it will work. I'll be back for a second post next week. Thanks 👍🏻

@jeffwestall7964 5 жыл бұрын

I was having a similar but different issue with a late 2015 27" iMac. I use it as a second monitor and occasionally it would revert to a standalone computer. When I'd try to reset it as a monitor (Command +F2) it both machines would react, but the monitor iMac would stay black. I tried your solution and so far it has worked!!! YAY! Thanks!

@bryancook4553 11 ай бұрын

Thanks for posting this tip! I was running out of things to try, then I finally found your video. While your tip worked the behavior on my 2020 iMac was a bit different. I popped the ram tray out, pressed the power button while simultaneously plugging in the power cable. The fans started up like an airplane then I pressed the power button to shut off the iMac. I pushed the ram tray back pressed the power button and the Apple Logo finally appeared. I then restarted in Disk Utility mode and ran a repair on the volumes, containers, and then disks. I then rebooted (pressing command+ option + P + R) to clear the VRAM, then rebooted again (pressing shift + control + option) to clear the SMC. I rebooted then booted all the way up to then performed a shutdown. I’m now booted all the way up successfully and upgrading MacOS to the latest version. Thanks again for sharing this fix!!

@xp3085 5 жыл бұрын

Question, was this the BACKLIGHT not working? or nothing at all on the screen? I have the same one but I'm just missing my back light. Any help or test would be greatly appreciated!

@richardberry8257 10 ай бұрын

Thank you! This has been driving me mad for months. Tried all the other suggestions then stumbled on this video. Worked on my 2012 iMac 27".

@martinkorben 5 жыл бұрын

Thank you ! My heart had stopped but now both the computer and my heart are back on.

@LiveInABottle 2 жыл бұрын

My imac went completely unresponsive during a security update (2020-005 for High Sierra). Unresponsive to any USB input, including keyboard. Tried everything under the sun, your solution is the one that worked. Thank you!! Saved me a lot of trouble. One thing to note though: it didn’t make any sounds and the screen didn’t turn on at all, I honestly thought it might not work. When I put the RAM back it, it took a while but it booted and now it continues the update installation. We’ll see how it goes after it finishes.

@garrettglazier8786 5 жыл бұрын

I hacing the same problem but my mac doesnt have the ram slot on the back. Any fixes?

@RiahEditz Жыл бұрын

My one You can hear the sound but the screen is black how do u fix it?

@heman8544 7 ай бұрын

did you fix it?

@michaelsmallcombe7689 4 жыл бұрын

Thankyou - middle of a job in the studio and the black problem occurred. I followed your procedure and it all went exactly as you described and, so far, the problem has not recurred. Thanks again.

@grahamforster4070 4 жыл бұрын

This solved the problem for me. Thanks very much for posting this! You are a star😊

@markadairofficial 5 жыл бұрын

Thanks a lot, man. I don't normally trust KZfaq tutorials, but it worked 100%. Thanks for taking the time to upload.

@BasicFolders Жыл бұрын

Oh wow, I thought I knew most things when it came to iMac's, but this worked for me, and was a new fix that I never heard of. Thanks so much! ❤

@Surgicalsensei 4 жыл бұрын

I have a 2010 iMac 27”. Could the GPU card be bad if I only have 1 LED on the diagnostic board when plugged in, and already replaced the power supply unit, and still when I press the power button, i get nothing, no chime no fan its completely dead

@burhanbey4782 Жыл бұрын

Even after 6 years of uploading the video, thanks for saving my months of work !

@chuckkillbourn869 6 жыл бұрын

You are the man, my friend! Lifesaver. Worked just like you said. Thanks!!!

@VERNON03 5 жыл бұрын

Ok I do this step by step and when I got to last stage and powered up while place power cord at same time it powered up with white screen and now I hear a fan, which i never heard. What is this? Before I did any of this Ram I boot the computer up and see. My login name and password and don’t see any of those. This is is a 2011 I Mac. Any answers please?

@rspencer86 4 жыл бұрын

Thank you for this! My black screen problem has gone away for now after trying this fix.

@ToClarify1 4 жыл бұрын

This has been happening for a little over 4 years now it works thank you so much

@bob.beaverson 6 жыл бұрын

Thanks. This addressed my black screen. Had to restart using command-alt-p-r to get OSX to start properly.

@sandipdixitvlogs 4 жыл бұрын

same here

@gummiedux 4 жыл бұрын

Same

@jamesthomas5132 6 жыл бұрын

Dude, you’re a lifesaver!

@nomaddigitalmusic 6 жыл бұрын

Hi guys. When i start m IMac is loading half of logo and after turn Black, can you help me? Ty

@julielopez5678 4 жыл бұрын

thank you! tried this last week and so far it is working fine again. thank you for sharing!

@wbfojnewton1 2 жыл бұрын

Hello my imac was sounding 3 beeps,isolated to one ram causing the 3 beeps.Left the one ram out(have two total).No beeps,but my display is still black.Suggestions ? Thank you.

@thephoenixrising4614 4 жыл бұрын

THANK YOU SO MUCH! Oh my gosh, I thought that I was going to have to take it in and get it fixed. You probably saved me from being scammed! This worked!✌🏾❤👍🏾

@randallolson7630 6 жыл бұрын

I have a late 2014 iMac 27" with 5K Display. I've been having this exact issue for months. I took it into the genius bar a couple months ago. They couldn't find anything wrong, but they did say that I have non-Apple Ram installed, and suggested I remove it, but gave me the option. I had them leave it in. Maybe that's the problem? Do you have non-Apple ram? I'll give your fix a try. Thanks!

@bewn314 6 жыл бұрын

Anyone know what to do with a 2014 21.5” screen???? I had the same problem with the fan spinning up, I can’t take out the ram though because it’s a 21.5” model

@venkatesan1898 4 жыл бұрын

Sir Plz! Help Me,I'm Using iMac Mid 2009 Model.... It Doesn't Power On Sometimes It Run Only Fan

@gunmetal06 3 жыл бұрын

I'm from Mumbai , India .... I recently got into blue screen problem and Ur video saved me from the next scam of USD 600.... Blessings to you brother 🙏🙏🙏

@erikwithak6555 4 жыл бұрын

Hey thanks for reminding me about this, I just replaced my hard drive and was thinking it was the DisplayPort cable but this saved me a lot of time

@galcionoc 2 жыл бұрын

My iMac has black screen but I know everything is working good beside the black screen . When I press the power button for 2 -3seconds (while my mac is on already)I can see for 1 second the bringt screen with my normal desktop. 1 time i‘Ve Pressed Shift key and Also for 1 second I saw the screen. I made the ctrl+Opt+P+R few days ago and it worked until the first „sleep mode“ since then nothing helps. What should I do? I took the ram out also and clean and did all the steps from video

@josecnavarro1745 3 жыл бұрын

I followed your instructions and it worked! Thank you, thank you. Now I’m leaving my iMac on, using the screensaver, just in case.

@TheLeebus 3 жыл бұрын

Did you wait till it stopped beeping? Mine was for ages so I stopped it then did next step. Didn’t work

@aliensporebomb 4 жыл бұрын

This happened this morning and would boot with the chime and despite zapping the pram and resetting the smc behaved the same with no video display on the iMac display or any of my two external displays. Strangely enough your video worked. And I'd reseated the ram within the machine within a month or two at most previous. I also blow out the air vents with compressed air regularly because I've seen buildup of dust causing greater processor throttling noticeably.

@sheahenson4930 3 жыл бұрын

the 2017 iMac doesn't have the plate in the back. any ideas? the command opt PR keys aren't working for me

@BuiltInOneDay 4 жыл бұрын

This just helped me fixed my late 2012 iMac. Thanks for the video.

@zhilikevin 2 жыл бұрын

It worked for my 2013 (later year) iMac 27inches. The machine got stuck on Safari, then got black screen. It was repeated in a couple of days! I googled and found your video. Thank you so much! No dust blew out but it did work:) Thank you so much! I just did it a couple of hours ago:!

@des863 5 жыл бұрын

2010 Imac 27": have been through many of the other recommended reboots for this problem, but your solution worked. Many thanks, you saved me great expense.

@des863 4 жыл бұрын

unfortunately, the fix didn't last

@ryqpeden 4 жыл бұрын

Did you ever find a solution that finally worked? I have a 2010 27” with same problem. Tearing my hair out.

@sanoj1969 2 жыл бұрын

Thank you. It really helped. I couldn't believe it but it actually worked. my beloved Imac27 late 2011 lives again. Thank you.

@HazmanHN 3 жыл бұрын

My 2017 27'' iMac finally alive.. Thank you so much!!

@persymonasalag Жыл бұрын

My imac 27 2011 screen goes black while imac is still working ( Screen sharing to macbook still working too) .. when I press power button for 1s and click on the mouse screen came back on (sometimes i need to repeat it few times) ,,, I've done PRam and nvram reset ,imac was cleaned Gpu ,Pcu termal paste change but did not helped ... Any advice ? ( Screen sharing to macbook still working during black screen on imac ) .. Any advice ?

@RyneRynie 3 жыл бұрын

Just did a similar fix with my iMac. Same issue, black screen, wouldn’t boot up, tried every startup trick and nothing worked. Ended up ejecting the RAM slots on the back and hitting it with an air duster. Tried starting a couple of times and same issue. It wasn’t until I held Cmd+Opt+P+R on startup, that it finally decided to boot up. Got a LOUD startup chime and it started properly. Working fine now.

@PK22-b7v 3 жыл бұрын

You are a genius … this is the only thing that worked for me !!!! Thanks bro 😎

@E-STUDIOTV 2 жыл бұрын

Combined this with his option and it worked. Thanks guys

@AccessGaming11 3 жыл бұрын

Thank you very much! So far all working after reinstalling the memory/ram.

@richardlewis2902 5 ай бұрын

Brilliant. Nothing worked until I popped the RAM out and works perfectly. Thanks so much, you are a star.

@AnjuliMack 2 жыл бұрын

Hoping this helps me 😭 when exporting on Final Cut Pro it goes black all the time

@jacejus 7 жыл бұрын

does it means when my screen goes black my ram is bad it does the same as yours and i did what u did un plug an hold power botton and at this moment my fans are working none stop

@AndrewFantasia Ай бұрын

This just happened to me but my model Mac doesn’t have the removable RAM piece at the back. Does anybody know any alternate solutions? Any help would be appreciated!

@philkroll8006 4 жыл бұрын

Cooool, Many thanks.... had this annoying issues for weeks.... pulled the Ram as you suggested and vuola!!! Worked, thanks dude! :)

@heman8544 7 ай бұрын

i hear the beep but my computer doesn’t turn on i’ve tried everything in this video and tried to restart with the mac keyboard what do i do

@LordGleizer 4 жыл бұрын

worked great for my iMac 5k 2017... Thanks a lot!!

@viktoria7497 5 жыл бұрын

Thank you so much for sharing this 🙏🏽

@qaisalmokdad9511 3 жыл бұрын

It somehow fixed it thx But rip the remote fan control so now the fan doesnt slow down its like full throtle And i cant display the temperature of the cpu and stuff And it says reset smc should i do it?

@barneymanningtree497 6 жыл бұрын

Outstanding! I was at my wit's end after trying everything I could find online (keyboard options, reboots, re-install OSX, disk repair etc.) about this intermittent black screen on my iMac. Your "cleanout" solution worked beautifully. My Mac is an eariier model 2013, but the procedure with the power cord worked just fine. Thanks for posting this, I was at the point of parting with $$$$ to get a professional fix. Saved me heaps of money. Much appreciated. Lesson learned; keep the vents at the back of the Mac clean and free from dust!

@brianvanzyl9841 3 жыл бұрын

This worked for my older 2009 iMac 24"- Thank you!!!

@victorandersen7528 3 жыл бұрын

I really hope you’re still able to see this. I have the issue with the black screen appearing, while the system seems to be operating (I hear the sound of the system turning on). I followed all of your steps, and it didn’t work. Just bought the iMac 2. Hand, and used it for about 6 hours until the screen became black. Do you think I have to buy a new Mac, or is there a possible solution? The iMac is from late 2015

@keii5553 2 жыл бұрын

OH MY GOD THANK YOU SO MUCH MY ONLINE CLASS WAS SO CLOSE TO STARTING!!

@albertgonzales8369 2 жыл бұрын

This was a life saver. Thanks man. 🔥🔥🔥

@InsaneFilms 4 жыл бұрын

YOU SAVED MY LIFE! THANK YOU SO MUCH!

@bane1855 2 жыл бұрын

I tried this but mine boots up half way then shuts off and coming back on to do the same thing!!! Any other suggestions?

@codeAlongwith 4 жыл бұрын

What if there is no beeping noise and the screen remains black but the fan is still running? Does that mean the HD has died?

@maddmcfly3171 5 жыл бұрын

Dude. Yoooo. I want to buy you a drink! Thank you so much!

@winnyscloset 5 жыл бұрын

I did this but now it's just not coming on and when I hold the power button it makes the fan sound and then stops.

@JohnWolfrik 4 жыл бұрын

help! I did all that. power off, removed ram, power on, strong fans and *tuuuut* beep sounds, power off, ram in, power on... and still the same, black screen without the intro chime and nothing.... any solution? someone? (late 2011 27" iMac)

@brendanvandermerwe6952 4 жыл бұрын

I have the same problem. Did you fix it. If so please let me know how

@scart1970 3 жыл бұрын

If you dont have intro chimeit is not the same problem. In this problem the IMac still work, but with black screen.

@FOURTYQUID 3 жыл бұрын

mine does the exact same thing any solutions?

@scart1970 3 жыл бұрын

@@FOURTYQUID My IMac started to get worst and I send it to a specialist. The problem is the graphic card. I bought one from EBay (a 2Gb one - my was 512Mb) and it's working. It still there for testing because it needs a bigger heatsink, but they said that is working ok.

@sylvainliza586 6 жыл бұрын

Thanks so much! You saved my iMac and I!

@markbiscocho1284 5 жыл бұрын

Worked for me! Ur a lifesaver! Thank you so much!

@Rui1902 4 жыл бұрын

Worked for me on my iMac 2017. Different symptoms for me. I upgraded the ram and it would turn on but screen would not. The loud fan did clean the exhaust very well haha.

@espanajoshua 2 жыл бұрын

Thank you so much! 2nd time this video has helped me 🙏🏼

@jpmitchell925 6 жыл бұрын

Thanks man that worked! 2013 imac

@Lillipod1 Жыл бұрын

How long did you lave it to beep, Did you wait to see a blue screen? I left it twice but nothing happened when I plugged it back in

@lorettaroman4394 Жыл бұрын

What if I have an older Mac pc and don’t have that panel at the back to eject the ram???????

@rpdee7344 4 жыл бұрын

3 24/2020 Mid2011 27" iMac halfway to fixing I think lots of fine dust near Mory holders after fan came on full blast and 3 beeps after cleaning memory chips found all working by testing them in a working iMac mini replaced into 27" iMac when turning iMac back on black screen 1 beep which I think is a bad 3.5 HD constantly clicking from having plugged and unplugged it so many time with the power on. Ordered a Torx screwdriver set so I can go deeper into the 2011 iMac and replacing the HD with an SSD 500GB, hoping that will allow for booting and no blackout screen when booting ( screen will turn on for a split second if I hit a key while booting then black again. Next, if it boots will have to figure out how to get an OS installed to the SSD HD.

@nachingoassafa 5 жыл бұрын

Works like a charm now..... Thanks so much mate

@ayeayeronmolay3699 7 жыл бұрын

It worked!!!! Thank you!!!!!

@se7enap777 4 жыл бұрын

U a genius. Fo real thank u man just saved my life 🙏🏻✨💫🖤

@DaveyWoodford 2 жыл бұрын

You sir are a lifesaver! Kindest regards always

@TheFlydesign 5 жыл бұрын

Daaaaang!! You rock! I depend on my computer for work. I'm running right now without a spare, eeeekkk! My computer started acting up a couple weeks ago and this fix, fixed it... Thank you!

@vitalijb7797 2 жыл бұрын

Thank you! Nothing worked no matter what I did, but this fixed the problem!

@alextrexroad 10 ай бұрын

Thank you so much for posting this! I was just about to take my iMac apart but tried your solution before hand and it worked! My computer is an iMac Retina 5K 2019, so if anyone is wondering if it will work on later models...it does. Thanks again!

@mitfreundlichengrussen1234 10 ай бұрын

Holy shit - this saved a 2019 27" 5K iMac - I removed the display for upgrading to an SSD - reconnected the screen and got no signal at all on the display (total black screen and only two green LEDs on the motherboard. I have reset SMC, and tried to reset PRAM (does not work since there is no boot sequence). I opened the damn thing again and checked all the cables and connectors under a microscope but could not find any damage.... I always had the feeling that there was a reset problem on the motherboard but did not know how to reset it completely... This "Eject the RAM. Plug back in the iMac. Power on the iMac with the RAM ejected" I´ve done it twice and now the damn iMac, which ate away 2-3 hours of troubleshooting time runs again! Thank you so much for posting this video, and saving a couple of big bucks and hours of sadness.

@kingkayz_ 4 жыл бұрын

Is the fan supposed to be running? And it worked

@lordcabbage5240 4 жыл бұрын

Does this work on the 21 inch version?

@user-pc2iu9xw2q Жыл бұрын

I have a IMAC 2011 27" with the same problem, try to follow what u did, but I don't see the plate to the RAM in this model !!!

@enavarro85 3 жыл бұрын

My computer still doesn’t wanna turn on... I followed all the stuff and it stays black and makes no noise. What do I do now?

@PipandozNzchch 4 жыл бұрын

Thanks dude. I was getting frustrated with my iMac and this seems to have fixed the issue.

@JRESHOW 4 жыл бұрын

Sweet! Should work for a while but I ended up switching out the ram and it hasn’t happened again.

@Alexia-to4oe 3 жыл бұрын

I have a late 2012 21inch iMac and have the same problem.... how can I fix it? 😩

@johnathanbeats 3 жыл бұрын

I got a 21.5 inch. That done this. Any help please is apreciated.

@draztiqmeshaz6226 4 жыл бұрын

Worked for today. Curious what the underlying problem is?

@nmfio69 3 ай бұрын

is this will work for mac late 2011

@lauraayahmararscanlon8143 5 жыл бұрын

Hi, the first solution worked for me but has now triggered the extra loud fan noise which won’t stop. Any ideas on how to fix this?

@MarsFranke 3 жыл бұрын

unplug your mac while on, then put plug in and turn mac on as usual. It worked for me, but let me know, if it didn't work

@evelynmarte3760 3 жыл бұрын

This is what happening to me right now and I’m getting crazy!

@kjellhansson9018 5 жыл бұрын

Just, 10 minutes ago, tried this on my iMac 27" mid 2010, Seems to work :) Before computer was randomly blacking out at any time for some duration, problems starting after a power outage. This fix seems to make a difference. I'll update after some days. If this works I owe you a beer! One week later : This fix surely cured my Mac! Where do I send the beer?

@tioastudillo 5 жыл бұрын

Please ... How you did .....where is the ram.

@revinlim 5 жыл бұрын

on my imac 27 2010 i cant take off the ram coz its all inside in. unless ill open the whole mac. and still all black. 😞

@LifestyleimagesMTL 5 жыл бұрын

@@revinlim It's the middle grid under your iMac. Three screw to remove, that's it.

@jonesy4fun 4 жыл бұрын

LifestyleimagesMTL I found it but don’t know what type of screwdriver - can you help ?

@drma2 Жыл бұрын

It didn't help here with mid 2010 27" :-(

@johnmartin8734 6 жыл бұрын

Worked for me...Thanks man.

@ColbyStewart1965 4 жыл бұрын

Thank you for this video. Mine is a 2017 imac; never had a problem; but the screen just goes black for a few seconds; then opens back up without loss of data (typing an email and nothing changed). The only thing I have done different was to connect it to another monitor (TV); but the TV was off. I was running multiple programs; so could it have been overworking; which caused these seconds of back screen issues? I have turned all the other programs off; about 10 minutes ago; and it hasn't happened to me yet; so far. Thanks again for any advice.

@JRESHOW 4 жыл бұрын

My issue ended up being 100% fixed permanently by replacing the RAM.

@arpadcserbak8437 3 жыл бұрын

Man, I own you a lot!I just tried your trick and my late 2013 27” IMac is back in life, god bless you bro.

@LeoTelles 6 жыл бұрын

I think I'm doing something wrong. I disconnected the power cord. Took the memory plate off. Disconnected the memory. And turn the iMac on. It keep beeping but the fan doesn't start like you said. What I'm doing wrong? Thank you.

@stelutzavesela 4 жыл бұрын

Leo Telles i did the same thing and it doesn’t work.

@LeoTelles 4 жыл бұрын

@@stelutzavesela yeah, mine was a motherboard problem. Huge problem,very expensive to fix, was 2 months out of the 3 year warranty, I got no proper support from apple and got so angry because was a max out iMac 5k, so everything should work fine for more than 3 years at least, I got do angry that I changed for a windows PC. Now I'm happier and chill because all the problems are easy to fix.

@raycicin1794 3 жыл бұрын

Ok, on my first try i hadn't pushed the ram cards in far enough. It's now 2 hours since following your instructions and no black screen so far. Fingers crossed. Thanks.