Y70 screen (flashing - blinking)

I have this exact problem. I understand that the Yoga series has/had similar issues, and a BIOs update was released to address that. Does anyone know if anything would offer a similar fix?
Thanks.
2/12 EDIT: Moved post to front of discussion for escalation purposes. Amy_Lenovo

So I found a solutions that works for me. I did this just after my last post the other day, and it's worked so far. I knew that the Lenovo Yoga series had the same problem, so I decided to implement some of the power changes recommended in another thread in this forum to fix those issues, and the blinking has since stopped! These are the solutions that worked for me. Please go to this thread and follow the solutions outlined there: Yoga screen brightness/flickering I'll summarize the solution as mentioned in that thread below:
1. Set Intel graphics to Max Performance. Right click on the DesktopSelect Graphics PropertiesClick on PowerIn both the Plugged In and On Battery tabs, select Maximum Performance (I also disabled the setting to extend battery life for gaming on battery). 2. Disable Adaptive Brightness for both Battery and Plugged-In Power Options Right click the Power icon in your System TraySelect Power OptionsClick Change Plan Settings next to whichever power plan you have selectedClick Change Advanced Power SettingsOpen the Display menu from the listOpen Enable Adaptive BrightnessChange the setting to Off for both On Battery and Plugged In options. That's it! There's no real explanation in the thread as to why that works, but I guess the Intel graphics don't play well with the Adaptive Brightness settings. Good luck to everyone. I hope this works for you, too!

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Screen flashing/blinking

My ipad2 screen sometimes will flashing or blinking itself... Is this normal.. I already updated my to 5.0.1..

Never mind all, fixed it myself. Removed the memory card and the SIM for 30 seconds, put them back in, and it powered up as per usual. No further problems.
Still would love to know why that happened in the first place though. It had never happened before, in the 2+ years I've had this phone.

Flashing / Blinking screen on Qosmio F50

Hello,
I've a persistent problem with my F50-12L screen, suddenly the screen flashing/blinking/display brightness goes up and down suddenly (This is not dim, it happens when I'm working as well)
When I start up my laptop, everything is smooth and working fine, suddenly it start to blink/Display brightness goes up and down and blinking for seconds then it disappear and back to normal again! I'm using the latest drivers and latest 2.2 bios and OS is win7 ultimate 32bit.
I took it twice to the authorized dealer/support here in Egypt which called Toshiba El-Araby : http://toshiba.elarabygroup.com , every time they say nothing wrong with it !! I check it before leaving and everything is fine and I keep telling them it's happening all the time, it just doesn't happen in front of them(is it my fault? lol), and back to home, and test it, it may run for hours without blinking etc, but suddenly, it starts to do so again for a while and disappear, and so on...
I thought it's an issue with the adapter, It's happening also when I'm working on battery, and I tried to remove the battery and work on the adapter directly(to check if there is nothing wrong with the battery) and it happened again.
Also, I tried to change my power mode, I tried all of them: High perf, balanced & power save modes, It''s happening whatever mode I use.
* Sometimes when it happens, there is a sound hmm i dont know the source of the sound but it seems to be the fan!(not sure, weird low sound! it's like zzzzz) I tried to adjust the screen and the flashing/blinking disappears, but it doesnt help all times, is there any issue with the screen itself?
I got tired of this, and of this support agent here in Egypt as I can't drive for 2 hrs everyday for nothing usefull, and Its hard for me to leave the laptop for days every week when it happened.
Anybody faced such issues with screen being flashing/blinking like mine? Do you have ideas or suggestions regarding this? Does Toshiba provide direct email support? I coudn't find their technical support email, If so, I would appreciate providing me with it and any help is much appreciated.
Sincerely,

Macius ,
Thanks for your reply and sorry for the delay. I was unable to login to this forum and it kept saying no user name, however I've managed to login now after many tries of resetting password.
I've tried to connect it to an external monitor, not doing the same with external monitors(it doesn't blink/flash when I connect it to an external monitor) Also when it flash/blink I adjust it by my hand and it disappear and return again and so on and it's annoying.
Do you or anyone has an explanation to this please? Plus, When it flash/blink, there is a weird low sound comes along with it zzzzz
I'm planning to take it to the Toshiba agent here in Egypt on Next Sunday, But i will appreciate any inputs that can spot or clarify this issue as it may help me to explain it better to the tech support at Toshiba as they are running in a closed circle for over a year.

Boot Camp: Early 2011 MacBook Pro boots to black screen with blinking cursor after windows 7 installation.

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Boot Camp- Windows installation boots to black screen with blinking cursor.

Updated my iphone4 to iOS5 can't make/recieve calls, text messages and screen flashes on/off

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Hi and Welcome to the Forums!
From your description, it sounds as if your device itself has somehow failed. My opinion is that your formal support channel is what you need to use -- via your carrier.
Good luck!
Occam's Razor nearly always applies when troubleshooting technology issues!
If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.
Join our BBM Channels
BSCF General Channel
PIN: C0001B7B4 Display/Scan Bar Code
Knowledge Base Updates
PIN: C0005A9AA Display/Scan Bar Code

My screen is blinking since latest upgrade?

What causes screen to blink or flash? This started after latest upgrade. How can it be fixed?

OK, well that isn't very definitive. However you can try some basic resets like doing a PRAM reset and SMC resets. If you don't know how to do these then please click:
https://discussions.apple.com/docs/DOC-3603
You may need to do each up to 2-3 times for them to work.

Screen flashing

My iPod, that I've had since June of 2011, screen is blinking a light also a little white line is flashing at the bottom of the screen. Is my screen dieing or did do something else. I did not get my device wet or drop it recently.

Try:
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- 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

My screen flashes... Please help.

Hi, today I turned on my windows 8 pavilion g6 and it turned on fine, until i got to the screen in which I choose the account I want to log onto. From there my screen starts blinking on and off. I have no idea what's wrong, and worked fine all the way until now. Nothing else happens except the screen flashes. Can someone help please? Thanks!

Frozen or unresponsive iPad
Resolve these most common issues:
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    •    Touch screen not responding
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iPad Frozen, not responding, how to fix
http://appletoolbox.com/2012/07/ipad-frozen-not-responding-how-to-fix/
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
Black or Blank Screen on iPad or iPhone
http://appletoolbox.com/2012/10/black-or-blank-screen-on-ipad-or-iphone/
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: Basic troubleshooting
http://support.apple.com/kb/TS3274
If no success...
Take it to an Apple Store for evaluation.
Make a Genius Bar Reservation
http://www.apple.com/retail/geniusbar/
 Cheers, Tom

My MacBook was acting weird so I restarted it and when I login a white screen flashes and goes back to the login page. Help?

My MacBook was acting weird like sometimes I would log on and I wouldn't be able to type my password for a couple seconds,but it usually logged in after that. Then I left my computer open after installing the recent update after that all my applications were not responding. So I shut it down, when I turned it back on about an hour later it went to this loading screen and then to the login like usual. After I tried logging in a white screen flashed and it went back to the login/ password screen like nothing happened. Any ideas on what happened and what I can do to fix it?

Reinstall OS X;
Reinstalling Lion/Mountain Lion 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.
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. 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 main menu.
Reinstall Lion/Mountain Lion: Select Reinstall Lion/Mountain Lion 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.

When I turn on or restart my Macbook Pro Retina 15", my entire screen flashes completely bright yellow for a few seconds and then it goes to the normal Welcome screen. How do I fix this??

Hi Everyone,
This problem just started today. When I turn on or restart my Macbook Pro Retina 15" (Mid 2012 version), my screen is light gray like normal, and then after a few seconds my entire screen flashes completely bright yellow for a few seconds, and then it goes to the normal Welcome screen (where I choose to login as myself or a guest user). This suddenly started today and has not stopped since. This keeps happening every single time I turn on or restart my computer.
Yesterday I installed all the Mavericks and other updates that were available in the App Store, so I'm wondering if this is related to that since this never happened prior to my doing those updates yesterday. When I first installed the new OS X Mavericks (10.9.3) update, it went through the whole installation process (took about 10 minutes), and then during the installation I got an error message saying that it couldn't verify my iTunes application that was on my laptop, and then my laptop finished installing the updates. Then once my laptop restarted, the App Store "Updates" section said that I had to do the whole OS X Mavericks (10.9.3) and iTunes (Version 11.2) updates all over again. So my laptop did the whole installation again (took about 10 minutes, but this time I didn't get that "iTunes error message" during the installation process).
Now, when I go to the App Store "Updates" section, it says the following under "Updates Installed in the Last 30 days":
-Digital Camera RAW Compatibility Update (Version 5.05) installed May 15, 2014
-OS X Update (Version 10.9.3) installed May 15, 2014
-iTunes (Version 11.2) installed May 15, 2014
-OS X Update (Version 10.9.3) installed May 15, 2014
-iTunes (Version 11.2) installed May 15, 2014
-Security Update 2014-002 (Version 1.0) installed April 22, 2014
I'm wondering if this flashing bright yellow screen upon bootup is related to the fact that my laptop installed the OS X Update and the iTunes Update two times each? Or is this new problem totally unrelated? It's just that this problem started a day after these 2 updates were installed twice.
My Macbook Pro Retina 15" (Mid 2012 version) is otherwise working fine at least as of now. The only issue so far is this flashing bright yellow screen every time I turn on or restart my computer.
If anyone could please help me fix this so that my bootup screen doesn't flash completely bright yellow anymore, I would be forever grateful!
Thank you so much for reading this and for any help you can provide.
hope everyone is well,
Elaine

Hey everyone in Apple world!
I figured out how to fix the flashing yellow screen problem that I've been having on my MBP! Yessssss!!!
I found this super handy website with the golden answer: http://support.apple.com/kb/HT1379
I followed the instructions on this page and here's what I did:
Resetting NVRAM / PRAM
Shut down your Mac.
Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.
I went through the 6 steps above twice, just to make sure I got rid of whatever stuff was holding up my bootup process. Since I did that, my MBP boots up just like normal. No flashing yellow screen anymore!!
(Note that I arrived at this solution when I first saw this page: http://support.apple.com/kb/TS2570?viewlocale=en_US)
Let me know if this works for you!
Elaine

Will a new MotherBoard cure Blank Screen with blinking cursor?

Stuck with Blank Screen with blinking cursor; ESC key couldn’t bring up Startup Menu; OS is not loading
Product Name: HP G62 237 CA Notebook PC
Short description of the problems:
--- Press ESC key couldn’t bring up Startup Menu when booting up
--- Blank screen with blinking cursor thereafter
--- Stuck here forever and OS is not loading
DETAILED INFORMATION:
Product Name and Operating System:
Model: HP G62 237 CA Notebook PC
O/S: Pre-loaded with Win 7 Home Prem
Processor: Pent. Dual-Core CPU T4500 2.30GHz
Memory: 4GB
BIOS Ver. (Insyde): F.17
System BOARD ID: 1484
Product #: WQ767UA#ABC
Product Config ID: 049C110000202710000020000
Problem History:
--- Used to have frequent BSOD (got fixed later because of faulty RAM that I suspected)
--- Window couldn’t be loaded
--- Window Repair and HP Recovery were tried but not functioning
--- OEM Hard Drive was then removed & formatted few times by using other computer
--- Hard Drive was then tested by other computer; it can be installed Win XP & Win 7
--- So, Hard Drive was eliminated from the suspect list
--- Replaced with other good RAM from other computers & put back the OEM Hard Drive to my HP G62; everything worked fine, such as: able to reinstall Win 7; listening to music files; got Internet to download latest BIOS from HP support site; connected to my 42 inched TV as my monitor; and even smoothly updated the BIOS from v.17 to v.37!
--- Also, able to receive Window Updates from the Internet; and seemed that all problems were nicely solved
--- Once I believe my system got stabilized; I went back to test the 2 supposedly problematic RAM to see whether they were both faulty or not, then the whole thing has turned around! Completely screwed me up until this moment …
--- After put back the problematic RAM, Window couldn’t be loaded …
--- With a few error messages… such as,
--- The file is possibly corrupt. The file header checksum does not match the computed checksum;
--- After the next reboot… an unexpected screen message showed up:
Intel ® Cantiga PCI Accelerated SVGA BIOS
Build Number: 1932 PC 14.34 11/11/2009 02:36:14
DECOMPILATION OR DISASSEMBLY PROHIBITED
Copyright © 2000-2003 Intel Corp. All Rights Reserved.
--- After that, OS was not loading …
--- Press ESC key couldn’t bring up the Startup Menu during boot up
--- Blank screen with blinking cursor thereafter and seems stuck here forever
Procedures performed for troubleshooting:
Tried hard reset for more than 5 times (removed battery, AC adapter disconnected and then hold down the Power button for more than 60 secs) and tried reseating memory too; same result with Blank Screen with blinking cursor after each reboot.
Connected to an external monitor [Fn + F4/F5] to see whether there was any display, nothing has showed on the external monitor, it seemed that no connection established between the two.
Finally, took the long journey to follow the Service and Maintenance Guide of HP G62 to remove the CMOS battery for well over 15 minutes and put it back. But the result was again disappointed. Tried 4 times already. The latest error message is:
The CMOS checksum is invalid. The CMOS will be reset to the default configuration and will be rebooted. Please check your BIOS Setup options to see if they change.
CMOS Reset (502)
ENTER – Reboot the system
After this message, the same Blank Screen with blinking cursor came back. And pressing the ESC key couldn’t bring up Startup Menu when booting up …
Note: the fan is still running; the Power button is functioning but seems stuck here forever!
I’ve already carefully read this HP Support document titled “HP BIOS Application Selected is Corrupt or Missing”:
http://h10010.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&dlc=en&docname=c01443485#N144
If really is the BIOS problems, then I will have the difficulties of updating a Window-based BIOS when I couldn’t even load Window!
(Note: Boot from USB has no point because right now I couldn’t change the boot sequence because the various “Startup Menu” options are not showing up!)
Secondly, I am still stuck with the Blank Screen with a blinking cursor after I passed the first screen of “Press the ESC key for Startup Menu” when re-booted again!
Thirdly, I have formatted my Hard Drive more than 3 times during the last few days for testing; I don’t have the OEM pre-loaded Win 7 with me anyone … and I don’t think I have the UEFI installed previously on my system. I did try hold down the Win Key + B with the most updated BIOS in the attached USB …, it came back with the same blank screen with a cursor blinking after reboot.
Note: the Blank Screen I’m experiencing right now is not completely black, in fact, there is background light from behind the screen and on each reboot, I can see the HP logo and the left corner message of: “Press ESC key for Startup Menu” … So, I suppose that my computer screen is not physically broken at least.
Requests:
Please explain to me that what are the problem areas and the root causes if is possible?
What steps or other tests can be done to make it work again?
Do you think replacing the entire MotherBoard can cure the Blank Screen with blinking cursor?
[Warranty: expired! I am the original purchaser & the end-user of this HP G62; acquired 2 years ago directly from a trustworthy source: staples (in Canada). Would HP Support still willing to service it for an extra charge?]
Thanks in advance for any suggestion and idea!
Owenson
===========================================

Stuck with Blank Screen with blinking cursor; ESC key couldn’t bring up Startup Menu; OS is not loading
Product Name: HP G62 237 CA Notebook PC
Short description of the problems:
--- Press ESC key couldn’t bring up Startup Menu when booting up
--- Blank screen with blinking cursor thereafter
--- Stuck here forever and OS is not loading
DETAILED INFORMATION:
Product Name and Operating System:
Model: HP G62 237 CA Notebook PC
O/S: Pre-loaded with Win 7 Home Prem
Processor: Pent. Dual-Core CPU T4500 2.30GHz
Memory: 4GB
BIOS Ver. (Insyde): F.17
System BOARD ID: 1484
Product #: WQ767UA#ABC
Product Config ID: 049C110000202710000020000
Problem History:
--- Used to have frequent BSOD (got fixed later because of faulty RAM that I suspected)
--- Window couldn’t be loaded
--- Window Repair and HP Recovery were tried but not functioning
--- OEM Hard Drive was then removed & formatted few times by using other computer
--- Hard Drive was then tested by other computer; it can be installed Win XP & Win 7
--- So, Hard Drive was eliminated from the suspect list
--- Replaced with other good RAM from other computers & put back the OEM Hard Drive to my HP G62; everything worked fine, such as: able to reinstall Win 7; listening to music files; got Internet to download latest BIOS from HP support site; connected to my 42 inched TV as my monitor; and even smoothly updated the BIOS from v.17 to v.37!
--- Also, able to receive Window Updates from the Internet; and seemed that all problems were nicely solved
--- Once I believe my system got stabilized; I went back to test the 2 supposedly problematic RAM to see whether they were both faulty or not, then the whole thing has turned around! Completely screwed me up until this moment …
--- After put back the problematic RAM, Window couldn’t be loaded …
--- With a few error messages… such as,
--- The file is possibly corrupt. The file header checksum does not match the computed checksum;
--- After the next reboot… an unexpected screen message showed up:
Intel ® Cantiga PCI Accelerated SVGA BIOS
Build Number: 1932 PC 14.34 11/11/2009 02:36:14
DECOMPILATION OR DISASSEMBLY PROHIBITED
Copyright © 2000-2003 Intel Corp. All Rights Reserved.
--- After that, OS was not loading …
--- Press ESC key couldn’t bring up the Startup Menu during boot up
--- Blank screen with blinking cursor thereafter and seems stuck here forever
Procedures performed for troubleshooting:
Tried hard reset for more than 5 times (removed battery, AC adapter disconnected and then hold down the Power button for more than 60 secs) and tried reseating memory too; same result with Blank Screen with blinking cursor after each reboot.
Connected to an external monitor [Fn + F4/F5] to see whether there was any display, nothing has showed on the external monitor, it seemed that no connection established between the two.
Finally, took the long journey to follow the Service and Maintenance Guide of HP G62 to remove the CMOS battery for well over 15 minutes and put it back. But the result was again disappointed. Tried 4 times already. The latest error message is:
The CMOS checksum is invalid. The CMOS will be reset to the default configuration and will be rebooted. Please check your BIOS Setup options to see if they change.
CMOS Reset (502)
ENTER – Reboot the system
After this message, the same Blank Screen with blinking cursor came back. And pressing the ESC key couldn’t bring up Startup Menu when booting up …
Note: the fan is still running; the Power button is functioning but seems stuck here forever!
I’ve already carefully read this HP Support document titled “HP BIOS Application Selected is Corrupt or Missing”:
http://h10010.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&dlc=en&docname=c01443485#N144
If really is the BIOS problems, then I will have the difficulties of updating a Window-based BIOS when I couldn’t even load Window!
(Note: Boot from USB has no point because right now I couldn’t change the boot sequence because the various “Startup Menu” options are not showing up!)
Secondly, I am still stuck with the Blank Screen with a blinking cursor after I passed the first screen of “Press the ESC key for Startup Menu” when re-booted again!
Thirdly, I have formatted my Hard Drive more than 3 times during the last few days for testing; I don’t have the OEM pre-loaded Win 7 with me anyone … and I don’t think I have the UEFI installed previously on my system. I did try hold down the Win Key + B with the most updated BIOS in the attached USB …, it came back with the same blank screen with a cursor blinking after reboot.
Note: the Blank Screen I’m experiencing right now is not completely black, in fact, there is background light from behind the screen and on each reboot, I can see the HP logo and the left corner message of: “Press ESC key for Startup Menu” … So, I suppose that my computer screen is not physically broken at least.
Requests:
Please explain to me that what are the problem areas and the root causes if is possible?
What steps or other tests can be done to make it work again?
Do you think replacing the entire MotherBoard can cure the Blank Screen with blinking cursor?
[Warranty: expired! I am the original purchaser & the end-user of this HP G62; acquired 2 years ago directly from a trustworthy source: staples (in Canada). Would HP Support still willing to service it for an extra charge?]
Thanks in advance for any suggestion and idea!
Owenson
===========================================

I have a 60 inch Sony XBR TV that has DVI input but not HDMI. I am using an adapter to get the video from my Apple TV, but the screen flashes a lot. Do I have any other choices other than buying a new TV?

I have a 60 inch Sony XBR TV that has DVI input but not HDMI. I am using an adapter to get the video from my Apple TV to the Sony, but the screen flashes a lot. Do I have any other choices other than buying a new TV?

Is this an iphone question?
You have posted in the iphone forum.

My macbook pro no longer connects to my tv through HDMI my computer screen flashes blue but my tv does nothing! could someone please help!!

HI i was just wondering if anyone could help me!!
i have a macbook pro and i have connected it many times to my toshiba tv through my HDMI cable, and for some reason now when i plug it into my laptop the screen flashes blue on my laptop but nothing happens to the tv it just says no signal and i dont know what to do!!
if anyone could help that would be fab!!
pretty pretty please!!

Hello ,
Thanks for using Apple Support Communities.
Please follow the steps below to troubleshoot having no display on the external display.
No video or no signal, image distortion, "snow," or flickering
Check connections
When using an external display be sure to check the following:
If you're using an Apple notebook, confirm the AC power cable or adapter is securely connected to the computer and the cable providing power to the display is also secure. It is always good to have your notebook connected to AC power when an external display is in use.
Confirm display adapters are fully seated in their respective connections and that they are supported models and for the computer and display. Refer to these articles to assist you with adapter compatibility and further configuration information:
Monitor and Display Adapter Table
About Mini DisplayPort to HDMI adapters
Apple Mini DisplayPort adapters: Frequently asked questions (FAQ)
Thunderbolt ports and displays: Frequently asked questions (FAQ)
Remove all display cable extenders, KVM switches, or other like devices and retest to determine if the issue is resolved.
Try unplugging the video adapter or cable and then plug it back in.
If more than one video adapter is in use (or "daisy-chained"), troubleshoot by using only one adapter.
Example: A mini DisplayPort to DVI adapter connected to a DVI to HDMI adapter is an unsupported configuration because there is a series of adapters in use.
If available, try using a different display and or adapter (or use a different connector by using DVI instead of VGA, for instance).
Reset the system
You can reset the Mac's parameter RAM and SMC.
Reset the resolution
Start by resetting the Mac's parameter RAM. If the display does not come up, was previously set to an unsupported resolution, and still results in no video:
Start up in Safe Mode.
From the Apple () menu, choose System Preferences.
Choose Displays from the View menu to open the preferences pane.
Select any resolution and refresh rate that your display supports.
Restart your computer.
Apple computers: Troubleshooting issues with video on internal or external displays
Take care,
Alex H.

Screen flashing between grey and background, dock not showing

I don't know how this happened, but I recently upgraded to Mountain Lion: as soon as I'd logged in, the Dock dissapeared, and the background started flashing between grey and my background. The only way for me to open anything is through Spotlight.
Whenever I try to make an app fullscreen, it glitches halfway through: half the screen is grey, and half the screen flashing. Opening Notification Centre flashes between grey and open and background and closed. Mission Control won't open, and CMD-tab fails to do anything.
Upon inspection in Activity Monitor, there is an abnormal amount of processes named "com.apple.dock.extra": closing them does nothing. One process exists and then doesn't in time to the background flash, and the amount of "dock.extra"s grows and shrinks from 3 to 10.
Can anyone help me with this strange problem?

Open Spotlight and type Terminal. Select the Terminal application.
Type 'sudo rm -rf ~/Library/Dock'. Ensure it looks exactly like that (minus the quotes) and hit enter. Type your password if you have one. Then, type the command 'killall Dock' and hit enter. The dock will terminate and restart, and it will hopefully be returned to its previous state.

I have a 16GB iPhone 3G and my screen will not work. When I have my sim card inserted into the phone calls go through, but I take it out and they don't go through. It was fine one minute and then the screen flashed and now it will not work. any answers?

I own a 16GB iPhone 3G. My father passed it down to me a year ago after he got the iPhone 4. I pressed the sleep/wake button on the top of the iPhone to check the time, and as I did so, the screen flashed on and off and now the screen won't work. Whenever I put my simcard in there calls will go through but I am unable to hear them, but if I take it out calls don't go through. I've tried charging it for a while, connecting to my laptop, holding the sleep/wake button and the home button for 10seconds to restore it, but nothing works. I've looked around and no-one'ed seemed to have this problem. I'd like to know what is wrong with my iPhone ASAP. thanks.

First, update iTunes, then connect the phone to the computer and do a restore. This will also get your iOS up to date. Your phone should operate correctly after doing this, if not, you will most likely need to have the phone serviced or replaced.

Y70 screen (flashing - blinking)

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