Blue screen on start up. The wheel spin and the blue screen gets brighter for a second, then the blue screen dims and it repeats with the wheel.
When I start up my imac, I get a blue screen. The wheel spin and the screen gets brighter for a second, then the blue screen dims and it repeats with the wheel.
Are you referring to the startup screen which is normally gray with the dark gray Apple logo or are you referring the login screen which is typically blue? If it's the latter you might give this a try:
Clearing Caches to Fix Login Problem
You will need to type some Unix commands. If you are not comfortable with this, I don't know of anything other than a re-install. But if you are careful, you should be OK. I recommend you print this out in a largish mono-spaced font so you don't miss any spaces (or add extra ones). Note that case is important.
Be careful. Some of these commands are dangerous, since you are going to be root.
Start up in Single-user Mode. When this has finished you will see a prompt ending in '#', although there may be other messages. Enter the following commands after the prompt:
/sbin/fsck -fy
Press RETURN. Wait a few seconds for 8-10 lines of output. If the last line says repairs were carried out, repeat this command until you get a message 'The volume <yourdiskname> appears to be OK'. Then continue with:
/sbin/mount -uw /
cd /Library/Preferences
rm com.apple.loginwindow.plist
rm com.apple.windowserver.plist
cd /Library/Caches
rm -r *
cd /System/Library
cd /System/Library/Caches
rm -r *
reboot
Press RETURN after each command.
This should now take you to a proper login screen after the normal boot sequence. You should then Repair Permissions by using Disk Utility (in your /Applications/Utilities folder).
If it's the former then reinstall OS X. For Snow Leopard:
Reinstall OS X without erasing the drive
Do the following:
1. Repair the Hard Drive and Permissions
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU 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 DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
2. Reinstall Snow Leopard
If the drive is OK then quit DU and return to the installer. Proceed with reinstalling OS X. Note that the Snow Leopard installer will not erase your drive or disturb your files. After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
Download and install the Combo Updater for the version you prefer from support.apple.com/downloads/.
Similar Messages
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Hi I replaced my hard drive on macbook and I want to install mac osx10.5 with the CD that came with the macbook. When I run the CD after a while I get the page showing language options for 2 second then a gray screen appears and nothing happens. I partitioned my hard drive and I tried installing Microsoft windows and that worked just fine. But I do not understand why it wont install mac os x 10.5????? PLEASE HELP ME. Thanks Hamid
Try a new post in the 10.5 Installation forum.
DALE -
I've even tried only having the iPad mini on the router but that's not even worked. Safari works but the apps are the worst and its what I use most.
Hi Friends,
I found the solution for this problem (because I faced it too): go to Settings>>General>>Reset>>Reset Internet Settings (the third option in IOS 6).
Five minutes later my iPhone 4S works fine again.
If the issue persists, forget the wifi connection, then sign in again.
Hope it helps -
Hello,
I just updated my phone with ios 6.1.3 and now my gmail email is not working. When i tap the mail icon it brings me to my inbox for 2 seconds then immediately back to my phone home screen. I have tried deleting and re-adding my gmail account and I have reset all settings also.
Nothing is working. Does anyone have any tips?
Thanks!Morning DeeHutton,
Thanks for using Apple Support Communities.
For more information on this, take a look at this article:
iPhone: Hardware troubleshooting
http://support.apple.com/kb/ts2802
Best of luck,
Mario -
My iPad won't charge after plugging into my computer and after holding down the power and home button at same time for 10 seconds… Can anybody help? Has IOS7.0 but not the most up-to-date version
It's just the battery sign - nothing else. I've tried to reboot by holding down both power and home key for 10+ seconds, waiting for the apple logo - but nothing happens. It's plugged into the imac at the moment. I tried to recharge it overnight using the normal charger - but no luck. It went dead during a Skype call with a friend - even though it was powered into the mains - albeit at a low battery level at the time
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Forgot the passcode to my ipad. When I went to restore it, it asked me if I wanted to update the software so I said yes. It then went into recovery mode, I'm guessing, with the connect to iTunes showing on the screen. Now iTunes will not recognize it so I have no idea how to get it back! Help!!
Then you will need to try restoring it once more:
Placing your device into recovery (DFU) mode:
Follow these steps to place your iOS device into recovery mode. If your iOS device is already in recovery mode, you can proceed immediately to step 6.
1. Disconnect the USB cable from the iPhone, iPad, or iPod touch, but leave the
other end of the cable connected to your computer's USB port.
2. Turn off the device: Press and hold the Sleep/Wake button for a few seconds
until the red slider appears, then slide the slider. Wait for the device to turn off.
* If you cannot turn off the device using the slider, press and hold the
Sleep/Wake and Home buttons at the same time. When the device turns off,
release the Sleep/Wake and Home buttons.
3. While pressing and holding the Home button, reconnect the USB cable to the
device. The device should turn on. Note: If you see the battery charge warning,
let the device charge for at least ten minutes to ensure that the battery has some
charge, and then start with step 2 again.
4. Continue holding the Home button until you see the "Connect to iTunes" screen.
When this screen appears you can release the Home button:
5. If necessary, open iTunes. You should see the following "recovery mode" alert:
6. Use iTunes to restore the device.
If you don't see the "Connect to iTunes" screen, try these steps again. If you see the "Connect to iTunes" screen but the device does not appear in iTunes, see this article and its related links.
Additional Information:
If you have a problem getting into recovery mode then try: RecBoot: Easy Way to Put iPhone into Recovery Mode.
Note: When using recovery mode, you can only restore the device. All user content on the device will be erased, but if you had previously synced with iTunes on this computer, you can restore from a previous backup. See this article for more information. -
MacBook Pro doesnt start. When I start my lap top, it shows the apple and the line uploading but it only goes like to 1/3 and then it goes blank for some seconds, then it turns off by itself and turn on again and happen the same, apple logo, line .. the noise like-fan going on, then turn off and turn on again. Tried starting holding option command P and R key and didnt work either. Starting to think I have lost all my data inside
Try a SMC reset.
http://support.apple.com/kb/ht3964
It might be helpful if you indicated the exact model/year of your MBP. Are you running Lion OSX?
Ciao. -
My ipad 2 is wont turn on. I held the sleep/wake button down for 15 seconds and the battery image shows up for a second then the screen goes blank. Help!
What to Do When Your iPad Won't Turn On
http://ipad.about.com/od/iPad_Troubleshooting/ss/What-To-Do-When-Your-Ipad-Wo-No t-Turn-On.htm
iOS: Not responding or does not turn on
http://support.apple.com/kb/TS3281
iPad Frozen? How to Force Quit an App, Reset or Restart Your iPad
http://ipadacademy.com/2010/11/ipad-frozen-how-to-force-quit-an-app-reset-or-res tart-your-ipad
iPad: Basic troubleshooting
http://support.apple.com/kb/TS3274
Cheers, Tom -
The apple logo appears for 5 seconds then disappears for 10 then appears for five and so on. I can get it to the connect to iTunes screen but as soon as I unplug it from the wall it shuts off completely. A laptop with iTunes isn't enough to power it up. Can anyone help me fix this?
Awesome. This is the iPhone 4 discussions! Have a nice day
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my imac (intel core i5, OS 10.10.1) shuts down every night and will not "wake up" next morning -- it never used to do that -- if I hold down the start button more than twice for many seconds, then it will finally boot up and works fine all day – I’ve tried shutting it down and unplugging it, and that does not work -- I’ve run disk utilities checked permissions, and run anti-virus and get no adverse results – I cannot figure out what is different that causes this problem
From previous experience 3 indicates a shutdown initiated by the SMC (System Management Controller) — hardware responsible for many low-level functions including power, sleep, lights, and fan activity.
Try resetting it:
Power or other problems related to unexpected system sleep, shutdown, lights or fans call for an SMC reset. Read all the steps.
Before Resetting the SMC
Try each of the following steps in this order before you reset the SMC. Test the issue after completing each troubleshooting step to determine if the issue still occurs.
Press Command + Option + Escape to force quit any application that is not responding.
Put your Mac to sleep by choosing the Apple () menu from the upper-left menu bar and then choosing Sleep. Wake the computer after it has gone to sleep.
Restart your Mac by choosing the Apple () menu from the upper-left menu bar and then choosing Restart.
Shut down your Mac by choosing the Apple () menu from the upper-left menu bar and then choosing Shut Down.
Resetting the SMC for Mac Pro, Intel-based iMac, Intel-based Mac mini, or Intel-based Xserve
Shut down the computer.
Unplug the computer's power cord.
Wait fifteen seconds.
Attach the computer's power cord.
Wait five seconds, then press the power button to turn on the computer. -
When I press "mail" to open emails, they stay pen for 2 seconds, then reverts to the icon screen...what gives?
Have you tried basics from the manual?
restart, reset, restore -
I cannot get any of the zoom functions to work, period. When Firefox starts up it begins to display the page then it stops and redisplays it. So its like it flashes on for a second then completely regoes to the site, any site. The text zooms dont work even when i try to change the font on the content tab, nothing. I have reinstalled firefox still no luck help,!!!!!
== This happened ==
Every time Firefox opened
== this month ==
== User Agent ==
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; InfoPath.2)Do you have that problem when running in the Firefox SafeMode?
[http://support.mozilla.com/en-US/kb/Safe+Mode]
''Don't select anything right now, just use "Continue in SafeMode."''
If not, see this:
[http://support.mozilla.com/en-US/kb/troubleshooting+extensions+and+themes] -
When I click on the safari button a blank screen comes up for about one second, then minimizes. I have checked wi-fi connection, and all is fine. Facebook and maps apps still work.
Try clearing Safari's cache : Settings > Safari > Clear Cookies And Data (Clear Cache on iOS 4) and also Clear History
If that doesn't work then try closing Safari completely and then re-open it : from the home screen (i.e. not with Safari 'open' on-screen) double-click the home button to bring up the taskbar, then press and hold any of the apps on the taskbar for a couple of seconds or so until they start shaking, then press the '-' in the top left of the Safari app to close it, and touch any part of the screen above the taskbar so as to stop the shaking and close the taskbar.
A third option is a reset : press and hold both the sleep and home buttons for about 10 to 15 seconds (ignore the red slider), after which the Apple logo should appear - you won't lose any content, it's the iPad equivalent of a reboot. -
Hello!, my name is jan and i am using lightroom 2 for many years. I have an original set-up disk with a 24 digit serial number. I had never problems wih installation of lightroom. suddenly lightroom refuses to start when I try to from a picture i have taken with my nikon D500 and transferred to WINDOWS 8.1. i have tried to re-install lightroom : the procedure asks for the serieal number , but refuses to accept the number that always worked. PLEASE help!! jan
If you are certain you have the right serial number, there really isn't much we can help you with here. You might try downloading and installing the last version of Lightroom 2. It will be the trial version, but when the trial screen appears there is an option to indicate that you have a serial number. Incidentally, Lightroom serial numbers start with the first four digits being 1160.
Adobe - Lightroom : For Windows : Adobe Photoshop Lightroom 2.7 - English, French, German -
Could not access Creative Cloud today without updating it. After update it will not open. It spins for five seconds then closes. Mac Pro tower 3 yrs old 12 gb ram os 10.7.2
I was unable to access the laptop last night to create a new user; however my client would perfer not to try a second account since that would make it unusable for him while we test the second profile.
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