My Imac doesn't reboot: screen is all white

My I mac is dead.....it stopped during a web browsing.
We switched off and after that only a bip and whote screen

This is the first thing that I'd try.
1) You should run disk utility from your system cd/dvd.
     a) verify the disk
     b) update your permissions.
2) Try a safe boot.
    Shutdown your machine. Hold down the shift key. Poweron. Wait awhile Wait awhile while you harddrive
      is being checked.
    http://support.apple.com/kb/ht1455
Sometimes if volumes don't appear in Startup Manager (what you get when you hold down the Option key at startup), you need to reset the Mac's PRAM, NVRAM, and Open Firmware. Shut down the Mac, then power it up, and before the screen lights up, quickly hold down the Command, Option, P, and R keys, until the Mac has chimed twice more after the powerup chime. Then, before the screen lights up, hold down Command-Option-O-F until the Open Firmware screen appears. Then enter these lines, pressing Return after each one:
reset-nvram
set-defaults
reset-all
"The reset-all command should restart your Mac. If so, you have successfully reset the Open Firmware settings."
http://support.apple.com/kb/TS1812?viewlocale=en_US
How to eject a cd from the internal cd drive:
eject cd
List of devices:
devalias
List of variables:
printenv

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my ipod screen is all white tried rebooting it but still i got a white screen, i tried plugging it in to itunes my computer cant detect the device and all my files are ok but still the screen is all white

i had the same problem a few time and what did was Hold the Sleep and Home Button for about 10 sec and it should restart . after its done restarting things should go back to normal . Good luck

Problem turning the mac on, the screen's all white

Hii, so my dad's mac book pro OX S Snow Leopard isn't turning on, well it is, but it's the screen's all white and then a blue file pops out with an interrogation sing.. We don't know what to do, any ideas?

First, try a system reset. It cures many ills and it's quick, easy and harmless...
Hold down the on/off switch and the Home button simultaneously until you see the Apple logo. Ignore the "Slide to power off" text if it appears. You will not lose any apps, data, music, movies, settings, etc.
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My MacBookPro (mid 2012) will not complete the boot process. Yosemite's progress widget gets about 1/3 to 1/2 way across when the logo disappears and the screen goes all white for 10-15 secs or so, then the machine shuts down and restarts.

My MacBookPro (mid 2012) will not complete the boot process. Yosemite's progress widget gets about 1/3 to 1/2 way across when the logo disappears and the screen goes all white for 10-15 secs, then the machine shuts down and restarts. This sequence will repeat seemingly forever unless I shut it down manually.
I upgraded to Yosemite from Mountain Lion a couple months ago, skipping Maverick completely, and I've done any associated updates that Apple told me about. I don't recall which version of Yosemite I have, but I'm sure it is the "latest and greatest".
I've tried re-starting in Safe Mode / Safe Boot and that does the same thing as described above except without the endless restarts. Instead of restarting at some point, SafeBoot proceeds to the white screen and then it hangs until I restart it manually. (I've waited as long os 20-30 minutes with no response).
When I tried the option-command-p-r key combo I never get any chimes or other noises besides the original 1 time boot sound that you would expect to get when starting up a macbook pro.
I was using the mac quite normally (meaning I was doing work I normally do on it and there was no indication of anything wrong) immediately prior to this happening.
The machine is BootCamp(ed) with Windows 8.1 which I use from a VMWare virtual machine instead of natively so that I can have both OSes running at the same time. I also think this is unrelated to my problem. I have been using this setup for more than 2 years.
My upgrade to Yosemite was uneventful and I thought it went well and was very smooth. I don't want to lead attention away from Yosemite, but at this point my problem does not seem related to the upgrade.
Any help is appreciated.

Install or Reinstall OS X from Scratch
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard 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.
Erase the hard drive:
1. Select Disk Utility from the main menu and click on the Continue button.
2. After DU loads select your startup volume (usually Macintosh HD) from the
      left side list. Click on the Erase tab in the DU main window.
3. Set the format type to Mac OS Extended (Journaled.) Optionally, click on
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      the Erase button and wait until the process has completed.
4. Quit DU and return to the main menu.
Reinstall OS X: Select Reinstall OS X and click on the Install button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible
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My iPad screen went all white when I was trying to close an app. I cant turn it off and iTune cant sync with it either. Does anyone know what I should do to fix this.

I have an iPad 2 that is about 2 years old and is in good shape. I was trying to swipe off an app when the screen went all white. I held down the power button to shut it down but it wont do any thing but go black. When I press the power button it come back all white with no icons and no passcode pad. Does anyone know how to fix this or what it is?
Thanks

TThanks for the suggestion but it turns out that you have to hold down the Home button, the Power button AND the Volume UP button at the same time for several seconds until,the Apple appears To fix the white screen of death. Found that on another help site. It works and boy an I glad. Pass it on.

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I downloaded iOS7 and now all of a sudden my screen is all white, nothing happened to the phone during installation it literally sat right next to me the whole time. What do I do? My lock button is broken so I can't reset it.

Hey aCasey,
Thanks for the question. If you have not done so already, it may be appropriate to restore your iPhone with iTunes and reinstall iOS 7. If you have trouble, you can do so in recovery mode:
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http://support.apple.com/kb/HT1808
Thanks,
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Shutdown by holding the on/off button for 10 seconds and then restart and see if it persists.

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If none of the 5 R's of troubleshooting are able to solve the problem, the issue is hardware related, meaning you'll need to have the iPod serviced or replaced. The LCD screen may have simply burned out or wore out over time.
http://www.apple.com/support/ipod/five_rs/.
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Hello grasyapagsinta
Welcome to BlackBerry Support Community Forums
If you think your Battery it OK then try Updating or reloading your device software to rule out any software issue.Have a look at on how to perform a clean reload of device software :
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Click " Like " if you want to Thank someone.
If Problem Resolves mark the post(s) as " Solution ", so that other can make use of it.
Click " Like " if you want to Thank someone.
If Problem Resolves mark the post(s) as " Solution ", so that other can make use of it.

What does mean when a imac screen goes all white

what does mean when a imac screen goes all white

Hopefully its not the logic board. try a PRAM reset: http://support.apple.com/kb/HT1379
basically hold cmd, option, P, and R directly after start. Keep holding them down until you hear two chimes. That indicates a successful PRAM reset. It is not uncommon to hear 3.
If that doesnt work try an SMC reset. Pull out the power cord from the back of the mac for atleast 15 seconds. plug it in again for 5 seconds and power back on ...http://support.apple.com/kb/HT3964
Regards,
Cody

Screen is all white after display wakes up. Why?

I have a mid 2011 iMac and recently noticed a new issue. After the computer wakes up from sleep, the screen is entirely white. If I click on an area or open an app, the program opens and an are around the window restores part of the background. This has been happening for maybe a month or so. Any ideas why?

Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, or by a peripheral device.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode* and log in to the account with the problem. The instructions provided by Apple are as follows:
Shut down your computer, wait 30 seconds, and then hold down the shift key while pressing the power button.
When you see the gray Apple logo, release the shift key.
If you are prompted to log in, type your password, and then hold down the shift key again as you click Log in.
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The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin. Test while in safe mode. Same problem? After testing, reboot as usual (i.e., not in safe mode) and verify that you still have the problem. Post the results of the test.

Screen is ALL WHITE

the screen has been ALL WHITE and I've restored it and reset it and everything and its still All White... can anyone help me??!!! (sometimes after reseting it, it blinks white to off)

is it possible that the contrast /brightness setting is set incorrectly?
I know on my iPod sometimes when I've had it in my pocket when I've forgotten to lock it, that the screen appears blank and adjusting the contrast makes the letters show back up on screen. I'm wondering if there is a way to adjust it without being able to see what's onscreen?

My screen is all white except for the noto bar up top and i cant even tur it off. what do i do?

My screen is completely white except for the notification bar up top and it recieves calls and messages theres just no screen or anything i can touch and i cant turn it off. What do i do?

See if this unblocks your iPad.
Reboot the iPad by holding down on the sleep and home buttons at the same time for about 10-15 seconds until the Apple Logo appears - ignore the red slider - let go of the buttons.

My Imac doesn't reboot: screen is all white

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