OS X Lion does not start. Black screen, please help me!

I have installed OS X Lion. I updated software (safari and itunes) and after it rebooted screen went black.
Now It does not start and only shows a black screen. What can I do?
When I turn it on, ventilator obviously starts but beyond that there is nothing to indicate that it is on....

This may be a hardware failure, but there are a few things you can try.
First, disconnect all wired peripherals and try to boot in safe mode (shift key held down at startup.)
If that doesn't work, boot from your recovery partition (command-R at startup.) If you can do that, reinstall the Mac OS and try again.
If that doesn't work, reset the NVRAM and PRAM:
Resetting your Mac's PRAM and NVRAM
If none of that works, take the unit to an Apple Store for service.

Similar Messages

When I connect the iphone does not start automatically Itunes Please help me

when I connect the iphone does not start automatically Itunes
Please help me
How to solve this problem that I have

i've had a few issues like this.
I've found that it is an issue with items that are already on your phone.
several troubleshoots.
1) uncheck everything from syncing (apps, music, tv shows, movies, podcasts, etc), try to perform a sync, it most likely will work. Then, sync after checking each item individually (check the sync box for videos, then sync, check the sync box for podcasts, then sync, check the sync box for music, then sync, etc). One of two things will happen, 1) you will fix the problem, or 2) you will identify exactly what part of the sync setup is the culprit.
2) if the above doesn't work, I've found that it is likely an issue with files that are on your phone but your phone doesn't exaclty recognize (for example, I had copies of music on my phone that didn't show up in the music app, I went in on itunes and manually deleted those songs from my phone and that fixed the sync). to do this, check the "manually manage music and videos" box at the bottom of "summary" while your phone is connected to itunes. Then, go to the left hand pane in itunes and find your iphone device, click the drop-down arrow that shows all the categories for media on your iphone. Go to the music category in your iphone on itunes and delete all the music that shows up. Try to perform a sync - it likely will work. After this, you can uncheck the manually manage music box and re-sync your phone as normal
let me know if either works

Macbook white 2006 does not start - black screen - no chime

Hi,
i got a problem here, my macbook white late 2006 does not start, i dont hear a chime just the DVD room trying to eject something but nothing is in it.
I tried to put a dvd and reinstall os but it just spins the dvd and ejects it while the black screen is on.
i tried SMC, PRAM reset still nothing happend , black screen still on.
I hear the HDD spinning and the light indicatior it white all the time, i even tried to replace the ram to another slot but nothing and i tried to disconnect the DVD drive and still does not boot up.
can someone help me?
thanks

The sad truth is: Buy a new or second hand one.

To open "Java Preferences," you need to install a Java runtime, but you are not connected to the Internet. I have tried links that people have put on other discussions but all i get is a black screen please help!!

To open “Java Preferences,” you need to install a Java runtime, but you are not connected to the Internet. I have tried links that people have put on other discussions but all i get is a black screen please help!!

Try this link, warning, it's straight to download mode:
http://support.apple.com/downloads/DL1421/en_US/JavaForMacOSX10.7.dmg

Hello, the 'Save As' dialog box used to allow the backspace button to go up one level in the directory when the focus is in the folder contents box but it does not work any more, please help.

Hello, the 'Save As' dialog box used to allow the backspace button to go up one level in the directory when the focus is in the folder contents box but it does not work any more, please help. BTW the same 'Save As' dialog in other applications still allow the backspace button to go up one level in the directory.

cor-el,
I kept forgetting and procrastinating about following your instructions, since I have internet access only for limited amounts of time and usually I am busy with important tasks when I am.
Out of the blue, the problem corrected itself (the Save As box started to open full screen, then shrunk down to a normal size and the edges can now be dragged to a custom size).
Even the copy and paste problem in the filenaming area seems to have been less troublesome lately even though there have been no updates to Firefox in a few weeks.
Even though I marked the solution as not helpful, the problem has in fact been resolved. I will save the solution instructions in case the issue returns.

TS1363 my iPad air cannot reconnect to my computer and it has the iTunes logo with a plug picture on a black screen, PLEASE HELP!!!!

I was updating my iPad air and in the middle of update it suddently cannot reconnect to my computer and it has the iTunes logo with a plug picture on a black screen, PLEASE HELP!!!! I did try steps from http://support.apple.com/kb/HT1808?viewlocale=en_US - IT DOES'N WORK!

Yes, that is your only option.Yes. You have to restore.
Try the following if you have difficulty restoring.
Try:
- iOS: Not responding or does not turn on
- Also try DFU mode after try recovery mode
How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
- If not successful and you can't fully turn the iPod fully off, let the battery fully drain. After charging for an least an hour try the above again.
- If still not successful that indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
Apple Retail Store - Genius Bar

My iTunes, on my computer is not syncing anything at all. We have tried re-downloading it but it does not work. Someone please help me?

My iTunes, on my computer is not syncing anything at all. We have tried re-downloading it but it does not work. Someone please help me?

Here:
iOS: Device not recognized in iTunes for Windows
or
iPhone, iPad, iPod touch: Device not recognized in iTunes for Mac OS X

Why does iMessages does not work properly ? Please help me ! Its works better with the previous version if compared with the latest iOS

Why does iMessages does not work properly ? Please help me ! Its works better with the previous version if compared with the latest iOS

Many, many thanks for both of you Todd and Rick.
to Rick:
I suppose you mean the Color Settings in Project Settings as follows:
- Working Space: None
- Match Legacy ... Gamma Adjustments checked ON
But it does not correct the colors in effects. And checking or unchecking Make Movie/Output Module Settings/Color Management/Profile/Preserve RGB does not make any difference.
to both of you:
Those parts of the video image that does not have color effects are just fine. In these parts the color is preserved when reimporting to FCP. However, those parts having color effects (except Levels, as decribed earlier) have altered color results. So, only the parts having effects affecting color are misinterpreted in the image area. The mismatch is of course seen in AE, before making the movie.
What I ment with "Color Management not working properly" is that (instead of "disabling" it) Color Management does not seem to be able to correct this "misinterpretation" or difference in effect handling between AE 6 and 10.
So, would you have any solution for this problem?
Again, many thanks for your fast replies!

Hello I am using Ipad 4 and its charger is not working while I was using it few days before and it was working properly now it says that the cable does not support this Ipad Please Help me out.

Hello I am using Ipad 4 and its charger is not working while I was using it few days before and it was working properly now it says that the cable does not support this Ipad Please Help me out.

Try a reset:
- Hold the home button and sleep/wake button down at the same time. When the Apple logo appears release both buttons then try and charge again.
If issue persists try:
- Another known working cable
- Check the charging port for any damage or debris
- You could also use a dry soft bristle toothbrush and gently brush it on the port to clean it of any debris that could be in there

Pavilion G6 2249WM powers on but does not boot - black screen

I have a G6 2249wm that had a message that the fan wasn't working. I had the fan replaced and after it was replaced it would not boot. I could hear the fan running and the caps lock light blinked once about every 5 seconds and the amber wifi light was on. After researching and taking steps outlined in the HP Computer does not start (Windows 8), I found that the code meant that the CPU was bad. I had that replaced and the notebook is still in the same condition. Is there anything else that I can do to get this computer to work?
Pavilion G6 2249WM C2N47UA#ABA AMD A6 - 4400M
After troubleshooting a little more I find that when the laptop is started the hard drive does not turn on. I used a USB adapter to plug the hdd into my desktop and found that it does work. I then plugged a different hdd that I know works into the laptop and found the same issue. Does this mean that the motherboard is bad?

Hello @FLC123,
Welcome to the HP Forums, I hope you enjoy your experience!
I understand that your notebook computer is producing a blinking light from the caps lock, and that the screen is blank. I would be happy to help you!
Since this symptom code is appearing after you have replaced the CPU, I recommend contacting our technical support at 800-474-6836. If you live outside the US/Canada Region, please click the link below to get the support number for your region.
http://www8.hp.com/us/en/contact-hp/ww-phone-assist.html
I hope this helps!
Regards
MechPilot
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the right to say “Thanks” for helping!

Mac book pro Computer will not start black screen

Help, my Mac book pro will not start, blank screen.

Read this: http://www.ifixit.com/Wiki/MacBook_Pro_13%22_Unibody_Troubleshooting
Sometimes this helps too: http://support.apple.com/kb/HT1379
Also this discussion provides a lot of troubleshooting; https://discussions.apple.com/docs/DOC-3353
Bye

TS3899 My email keeps telling me the message failed because the server does not allow relaying. Please help

My e mail keeps coming back with a message saying failed because the server does not allow relaying. Please help

Check the suggestions at this website. They may help you get email working all the time.
http://appletoolbox.com/2012/01/server-does-not-allow-relaying-email-error-fix/

I have lost all of my bookmarks from the drop-down menu. It says it is empty, but never have I deleted them. And when I bookmark a page it does not save it. Please help

Question
I have lost all of my bookmarks from the drop-down menu. It says it is empty, but never have I deleted them. And when I bookmark a page it does not save it. Please help

Ok this is bizzare!
Thank you for your response, I went throught each and every step without any luck, even got the recovery programme, and painstakingly tried to sift through all that mumbojumbo to find what i needed. finally found the bookmark bit, but it had been fully overwritten :(, so on reading about previous ff versions, found the sqlite thingys, and they were relatively unscathed(partly written over, but saveable apparently TG), saved them to adiff drive, amongst other possibly good folders. Then looked up how to install them, and it said to close FF, and install to profile folder.
So i tried to close FF, and the original problem from a few days ago, where it asked me if 'i was sure i wanted to close this window as it has X tabs open', popped up again. This is where 'open blank page' selection was set, over 'open previous tabs'. Wanting to save that info on how to sort out these friggin files, I reset the Option to 'open previous tabs', and closed FF. After unsucessfully searching for the profile folder on my laptop, i opened FF intending to search online for where i could find said folder.
AND BANG, surprise surprise, the FF I had just closed with only tabs open about finding out what the heck to do, had disappeared, and instead my original saved tabs were up, and my bookmarks are there..... I am gobsmacked! what the heck just happened there???
I have made 3 back up in different folders now, of those friggin bookmarks. I am weary now tho of shutting it all down.... what if its back to the other pages I had with no bookmarks, tomorrow :(

GS70 - Does not boot - black screen with solid white dash

Sorry for the long post - I've been beating my head against this problem all day, filed a report ticket and really need help from anyone who has ideas.
Yesterday evening after finally relenting and allowing the patch Tuesday updates to install on my GS70 Stealth I tried to power on my computer and it remained stuck at the MSI logo. I waited 3 hours with no success before powering it off and attempting to access the bios by hitting the delete button. The screen turned black except for one non-blinking white dash near the center of the screen. This screen also remains indefinitely and requires a hardware power off to work. I've tried all of the function key presses and recovery shortcuts to no avail.
Eventually I tried to boot into linux via a live USB. I still could not access the bios but, to my surprise, so long as this USB is in my system, Windows happily boots. After this I tried to revert to a system restore point before the updates but that did not resolve the problem. I also tried to update the BIOS but there is no way to install BIOS updates that I know of that doesn't require accessing the old BIOS first (which I cannot do because the black screen with a white dash is still all that shows up). I tried forcing the UEFI bios to load through windows recovery settings with no luck either.
I've sent in an RMA/Support request and hopefully MSI will repair or replace my device but I sent it in for an RMA literally less than two months ago and to be having to do it again so soon is starting to turn me off of the product. For me to insure and ship my device to MSI costs a little over $100 each time which is rapidly turning this $1600 product into an $1800 one and turning me from an MSI brand loyalist to a 'one-star-review everywhere' evangelist. Is it possible that something MSI did during the last RMA screwed up my motherboard (they replaced the disfunctional steel series keyboard with a new marginally more functional steel series keyboard)? Does MSI ever cover the shipping costs for an RMA if the RMA is a result of damage that they caused to the device? Is there anything I should do to try to avoid burning more money trying to get a luxury-priced product I've already paid for to function?

i had similar problem myself on my first GS70 it has some sort of bios problem that it random hangs itself :/ causes OS not to boot and bios refuses to load but i managed to get my recovery USB to boot but not bios yet so i sent laptop off for repair they replaced the motherboard so i got it back then i had an faulty gpu :/ so i took it back and got money back so i bought new one some where else since than i havent had problem so this sort of problem sounds like bios firmware isnt booting propertly :/ so have you tried removing msata and HDD from laptop and then power laptop on? to see if bios gets forced on if so power it off put msata back on and so then power laptop back on and bios shall work again

PSE7 Organizer does not start properly, screen flashes, PC stops

Hello. I can't find this problem mentioned on the forum.
I've used PSE4 and 5 in the past without problems. Have just completed a clean install of PSE7 (no PS or PSE previously installed on this system, a ThinkPad T60 with 2MB). The Editor runs fine.
I ran the Organizer once, set some preferences, pointed it at a small number of images to import, then the whole screen started flashing and soon my system stopped in its tracks - no blue screen.
Now, when I try and start the Organizer, it spends maybe half a minute "Generating thumbnails" without success (all the thumbnails have egg timers on them). It uses 50% CPU. It still says "Generating thumbnails" after half a minute or so when the screen starts flashing and the system crashes again.
Any ideas?

Fixed. Thank you John.
I renamed the preferences file but that made no difference.
So I repaired the catalog (errors were found) and optimized it. When I started the Organizer, thumbnails were displayed (that's progress) but then the screen-flashing started again (whole screen, as usual, not just the Organizer window). Before I could close the Organizer, my system stopped with a blank, black screen, and no response to any input. I had to hold the power button to power down. On reboot, it blue-screened. On next reboot it started normally.
So I created a new catalog and the Organizer started fine. Then I set it off getting photos from a folder of folders of jpegs (with the odd txt and other file type). After a few seconds, the screen-flashing started again, and I quickly closed the Organizer.
When I restarted it, the catalog was empty, so I had it get just one folder of photos at a time. On the very last one, the problem started again. I found an AVI file that I'd overlooked, removed it, and the problem went away. The AVI was one I recorded on a digital compact.
The Help for Organizer says:
"The Organizer catalogs video AVI files properly, but audio AVI files are shown as broken video thumbnail icons. However, they will play correctly."
Hmmm...doesn't seem to be the case for me. Even if AVIs were unsupported or known to cause problems, I would never expect to see the symptoms I did.
Hopefully my experience will help others. Incidentally, I run XP Pro SP3, fully updated.

OS X Lion does not start. Black screen, please help me!

Similar Messages

Maybe you are looking for