Screen goes to sleep and won't come back on - how to fix?

My 2009 MacBook screen goes to sleep and won't come back on. It just stays black while the computer is still running. This just started happening one day for no apparent reason. Anyway to reconcile?

When you post for help, please state which OS X is installed.
If you aren't sure, click About this Mac from your Apple menu 
Troubleshooting advice can depend on that information.

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What I m trying to say is that ,my WIFI or also knowing as wireless connection that is no cable! OK ! So my Wi-Fi is not staying connected to my router ever time it goes to sleep and after it comes back its asking my to reconnect to Wi-Fi. NOT STAYING C

What I m trying to say is that ,my WIFI or also knowing as wireless connection that is no cable! OK ! So my Wi-Fi is not staying connected to my router ever time it goes to sleep and after it comes back its asking my to reconnect to Wi-Fi. NOT STAYING C

Why did you start a new thread. Just respond on the same thread you started.
Click the Reply button on a post that you wish to reply to.

Screen goes to sleep and won't wakeup

13" macbook screen goes to sleep but won't wakeup reliably. I can see a faint dark screen and I hear the computer working but can't see anything. If I press the screen light keys it will flash a view and almost seems to fix the problem. Closing / opening clamshell a number of times eventually causes it to work. The sleep light on the front sometimes stays solid instead of throbbing. I can even plug a remote monitor in and it will display on the remote. Using 10.6.8

I've had this issue twice with my 2009 white MacBook. Fortunately I still had the apple care support which expires in June! The most recent occurrence was last week. The inverter board had to be replaced and they actually ended up replacing my LCD this time. Evidently its a faulty design with this model. The repair was free to me, but I noted the cost on the invoice when I picked up my computer. The inverter board and another part were a total of $75, and the LCD was about $300. But like I said, the first time they did not replace the LCD screen, so it could be a minor repair.

Why does my iphone 3gs screen goes black after reaching another party and won't come back on to press end the call

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hi smalley3,
Welcome to the Forums.
The flickering issue maybe due to a bad LCD cable or in some cases, a faulty GPU (the GPU is integrated to the CPU, and the CPU is soldered to the motherboard).
If there's still no image on the screen even after connecting an external display then you likely have a bad GPU.
In this case, I recommend you contact support for service (and also to see if there's a consideration that can be done on the warranty repair).
Support phone list
Regards

My iMac 27 2010 vintage goes to sleep and won't wake up...I have to push the on off button and hold till it shuts down and then re start...This is not good..Help please

My mac iMac 27 2010 vintage goes to sleep and won't wake up till I hold the on off power button....Then I have to restart as it is locked up....This it intermittent..
Help Please
Jim

Ops I replied to myself in error.....
Tom:
I performed the steps indicated but this morning when I clicked the mouse and hit the space key and clicked the track pad again as before nothing happens.
I hold the power button for a few seconds and the screen fills as if the computer was normally awakened but it is locked up.
Then I have to shut it down with the power button and then power it up as a reboot.
Not good...SMC reset didn't work....Throughout the day yesterday I put the computer to sleep and woke it up normally. It seems to be a overnight problem.
Am I going to have to shut it down everynight?
Jim

After upgrading to mavericks my mac shut off and won't come back on

I upgraded to Mavericks and my 2013 macbook pro shut off and won't come back on. When I push the start button I can hear the chime and then my sleep light blinks really fast and then shuts off completely. All I get is a white screen with the loading circle just going around and around. I tried resetting the pram but that didn't work. Any ideas?

Reinstalling OS X Without Erasing the Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Reinstalling OS X Without Erasing the Drive
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility and press the Continue button. After Disk Utility loads select the Macintosh HD entry from the the left side list. Click on the First Aid tab, then click on the Repair Disk button. If Disk Utility reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit Disk Utility and return to the main menu.
Reinstall OS X: Select Reinstall OS X and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.
Alternatively, see:
Reinstall OS X Without Erasing the Drive
Choose the version you have installed now:
OS X Yosemite- Reinstall OS X
OS X Mavericks- Reinstall OS X
OS X Mountain Lion- Reinstall OS X
OS X Lion- Reinstall Mac OS X
Note: You will need an active Internet connection. I suggest using Ethernet
if possible because it is three times faster than wireless.

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I was also facing the same probs..
bt when i reinstalled OS, nw alomost every part s ok except the brightness part..
The option to adjust brightness seems unavailable..

HT1339 After I disconnect from my PC, my iPod nano shuts off and won't come back on? How do I fix this?

When I disconnect from my PC, my nano shuts off and won't come back on. I have tried holding down both the On/Off and the Home buttons -- but nothing...

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 iOS device fully off, let the battery fully drain. After charging for an least an hour try the above again.
- If still not successful that usually indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
Apple Retail Store - Genius Bar

All account have all gone off line and won't come back.

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From the Mac Mail menu bar click Mailbox > Take All Accounts Online

My Phone Just Shuts Off and won't come back on unless hooked to a power source. I've got all the updates and all apps are closed out.

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Most likely a bad battery.

Whilst using my laptop it powered off unexpectedly and won't come back on. Ive tried connecting it to the powere adaptor but it's not charging Nd is still off. Battery was fully charged before it went off

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Try resetting the SMC http://support.apple.com/kb/ht3964
Try resetting NVRAM/PRAM http://support.apple.com/kb/ht1379

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MacBook Pro 2012. Replaced hard drive yesterday by apple. Went home working and now it turns off and won't come back on till I plug it in... Help!

Have had a ton of issues with my Mac. Went to the apple store in march and they said my processor could be going bad and they basically did nothing. Yesterday I was using my computer put it to sleep. 10 minutes later I opened it up and it completely crashed. Drove 2 hours to get to apple because I am away at school and need my computer for finals. They replaced my hard drive and it was working perfectly fine till today. Now it turns on and works and then shuts off and it won't come back on till I plug it in. It's completely charged and I need it for my classes. I have apple care but I can't keep driving back to apple every day. I have a apple appointment tomorrow but this is ridiculous. Has anyone had any of these issues? What's it going to take for them to replace my computer I can't even live a day without it right now. And by the way. I could not even get any of my data off my old hard drive. So basically nothing is on this computer right now.

Kak4k8 wrote:
I have apple care but I can't keep driving back to apple every day. I have a apple appointment tomorrow but this is ridiculous. What's it going to take for them to replace my computer I can't even live a day without it right now.
Let them know how this is inconveniencing you. For a replacement, I believe Apples general rule of thumb is if it comes in for the 3rd time for the same issue they will replace it, but it may vary by store. It cant hurt to ask for a replacement.

My iPhone 4 just shut off for no reason and won't come back on?

My iPhone 4 just shut off for no reason and won't turn back on.. ??

Hi there 203nancyc,
You may find the troubleshooting steps in the article below helpful.
iPhone: Hardware troubleshooting
http://support.apple.com/kb/ts2802
Will not turn on, will not turn on unless connected to power, or unexpected power off
Verify that the Sleep/Wake button functions. If it does not function, inspect it for signs of damage. If the button is damaged or is not functioning when pressed, seek service.
Check if a Liquid Contact Indicator (LCI) is activated or there are signs of corrosion. Learn about LCIsand corrosion.
Connect the iPhone to the iPhone's USB power adapter and let it charge for at least ten minutes.
After at least 30 minutes, if:
The home screen appears: The iPhone should be working. Update to the latest version of iOS if necessary. Continue charging it until it is completely charged and you see this battery icon in the upper-right corner of the screen . Then unplug the phone from power. If it immediately turns off, seek service.
The low-battery image appears, even after the phone has charged for at least 20 minutes: See "iPhone displays the low-battery image and is unresponsive" symptom in this article.
Something other than the Home screen or Low Battery image appears, continue with this article for further troubleshooting steps.
If the iPhone did not turn on, reset it while connected to the iPhone USB power adapter.
If the display turns on, go to step 4.
If the display remains black, go to next step.
Connect the iPhone to a computer and open iTunes. If iTunes recognizes the iPhone and indicates that it is in recovery mode, attempt to restore the iPhone. If the iPhone doesn't appear in iTunes or if you have difficulties in restoring the iPhone, see this article for further assistance.
If restoring the iPhone resolved the issue, go to step 4. If restoring the iPhone did not solve the issue, seek service.
Issue not resolved
My issue is still not resolved. What do I do next?
Contact Apple Support.
-Griff W.

Screen goes to sleep and won't come back on - how to fix?

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