My HP Pavillion dv4 has a black screen and blinking Caps and Num lock

BEFORE anyone says to take out everything and press the start button for however many seconds, i've tried that. I've also tryed counting blinks, but there seems to be no pause in blinks, thus continuous blinking.
SO, recently i have updated my laptop, i let it shut off but i did not choose for it to restart. Today when i tried to turn it on, the screen was black, did not turn on and the caps lock and the num lock have been blinking continuosly, without pattern. The touch screen volume and such is also on and after a few seconds the fan turns on. There is no loud beep, just the regular startup soft beep. So, i would like to know, if anyone knows what i can do, before i have to go and pay to fix this thing.

i have took it to the apple store, i am out of warranty and they said it is a hardware problem, god knows whats causing the black screen it is fine when on as i got it fixed at a local phone shop but when the phone dies then there is no bringing it back to life.

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My ipod touch 4 gen. has a black screen with a apple and under it is a load bar that is empty and wont load

my ipod touch 4 gen. has a black screen with a apple and under it is a load bar that is empty and wont load

Try here:
iPhone and iPod touch: Frozen and unresponsive
iPod touch: Hardware troubleshooting

Completely reset ipad because the person i bought it from couldn't remember the password or any of the other security questions because of a debilitating mental disorder. Now it just has a black screen with a plug and it says itunes. what should i do?

I completely reset and now it has a black screen showing a plug in pointing to itunes. what should i do?

That iPad is probably in recovery mode:
http://support.apple.com/kb/HT1808
But it won't be much use to you, if you don't know any passcodes.
In that case, you should contact Apple.
By mail...:
http://support.apple.com/kb/HT5312
...or by phone:
http://support.apple.com/kb/HT5699

HT1384 My ipod nano 3rd generation, when connected by usb, does not show up in itunes, does not show up on my computer, does not seem to charge by the wall charger. It just has a black screen. Any ideas for me?

My ipod nano 3rd generation, when connected by usb, does not show up in itunes, does not show up on my computer, does not seem to charge by the wall charger. It just has a black screen. Any ideas for me?
I've run diagnostics. Can't find device. I've tried resetting. The toggle has been turned on and off.

Cable works fine on my other iPod. Reset by pressing menu and center button together for 6-10 seconds. Left it to charge for many hours. Started acting up while running. Suddenly the music stopped playing but my Nike + was still working for the rest of my run. Took it straight it home and plugged it in to the wall to recharge since the battery was fairly low. Looked like it recharged ok but then screen went blank and now does it not show up on iTunes, does not seem to recharge by the wall charger (apple wall charger plugged into a surge protector in India). I have turned the hold switch off and on many times.
Sounds like a repair issue, which is not easy to do in India :(

How do you fix an ipod that has a black screen and it turns on but when it turns on the screen gets a lighter black but you still can't see the apps or anything?

How do you fix an ipod that has a black screen and it turns on but when it turns on the screen gets a lighter black but you still can't see the apps or anything?

Try:
- Reset the iOS device. Nothing will be lost
Reset iOS device: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Restore from backup. See:
iOS: How to back up
- Restore to factory settings/new iOS device.
If still problem, make an appointment at the Genius Bar of an Apple store since it appears you have a hardware problem.
Apple Retail Store - Genius Bar
Apple will exchange your iPod for a refurbished one for this price. They do not fix yours.
Apple - iPod Repair price
A third-party place like the following maybe less. Google for more.
iPhone Repair, Service & Parts: iPod Touch, iPad, MacBook Pro Screens
Replace the screen yourself if you are up to it
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My iPhone has a black screen!

Hello apple community. My dad just sent me a used iPhone 4s for my birthday about 1 week ago. Today I was using my iPhone and I went to eat and left my phone on my bed. Then when I came back , I tried turn it on and it didnt turn on. It has a black screen but it functions properly. It might be a display screen error or something. I tried the famous method of pressing the home button and the power button at the same time for like 10 seconds but it still wont work. I also plugged it in on my computer and it shows everything on there but my iPhone screen is still black. I hadthe same problem earlier when I got the phone but it turned on after a little while of charging it. What is going on? I live in a small town in Mexico and there are no Apple stores nearby! What should I do? Please I really need your help on this issue. Thank you very much for your attention and hopefully you guys can help me.

Hello there, Kevin Barreto.
To make sure if it is a hardware issue or not, the following Knowledge Base article should help guide you further:
iPhone: Hardware troubleshooting
http://support.apple.com/kb/ts2802
Specifically the section on:
Display has no backlight or dark screen
Toggle the ringer switch to see if the unit vibrates. If it does, it could be that iPhone is getting power, but is not displaying any image.
Try turning iPhone off and then on again.
While connected to the iPhone charger, try to reset the iPhone.
If the low-battery screen appears, charge the iPhone.
Thanks for reaching out to Apple Support Communities.
Cheers,
Pedro D.

My ipod has a black screen and will not turn on how can i fix it

I have tried everything that i can to get my ipod to turn on. It has a black screen and hasnt done anything atleast 2 weeks. Please help.

1. Can you get it to light up doing a hard reset and holding the buttons down for at least a minute?
2. Is it charged up?
3. Is the USB power cable good?
4. Can you get iTunes to recognize using recovery or DFU mode?
Basic troubleshooting steps
17" 2.2GHz i7 Quad-Core MacBook Pro  8G RAM  750G HD + OCZ Vertex 3 SSD Boot HD 
Got problems with your Apple iDevice-like iPhone, iPad or iPod touch? Try Troubleshooting 101
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My Macbook Pro has a black screen when running in Bootcamp Windows 7. Since I updated the mac side my windows side now starts up with completely black screen - no prompt, nothing, Cap keys still light up as does mouse and DVD drive seems to run.

My Macbook Pro has a black screen when running in Bootcamp Windows 7. Since I updated the mac side my windows side now starts up with completely black screen - no prompt, nothing, Cap keys still light up as does mouse and DVD drive seems to run.
Will not show up in safe mode, will not show when started from Windows 7 DVD.
I suspect the Mac update wiped out my PC video drivers but can not think of a way to re-install?
Can see the PC volume from Mac side with files.
I've looked at all the online solutions so far and have tried most of them without success. Please help!
Specs:
2009 Macbook Pro, 3.06 GHz Intel 2 core, Max 10.6.8.
Model Name:          MacBook Pro
Model Identifier:          MacBookPro5,2
Processor Name:          Intel Core 2 Duo
Processor Speed:          3.06 GHz
Number Of Processors:          1
Total Number Of Cores:          2
L2 Cache:          6 MB
Memory:          4 GB
Bus Speed:          1.07 GHz
Boot ROM Version:          MBP52.008E.B05
SMC Version (system):          1.42f4
Serial Number (system):          7302300GANE
Hardware UUID:          B2D4B4B4-CD92-5C7A-BDC2-527D30DD8DF3
Sudden Motion Sensor:
State:          Enabled

EDIT: RESOLVED
For anyone else who finds their way here like I did, this link did it for me: https://forums.geforce.com/default/topic/527599/windows-8-issues-solved-please-r ead-if-you-39-re-having-black-screen-and-or-flickering-/
Specifically, the posts by Dunsany and valkyr did the trick. I booted in safe mode, uninstalled and deleted the Nvidia driver, disabled automatic driver installation, and restarted normally. I then manually downloaded and installed the previous Nvidia driver for my graphics card (which at the time of this writing was 335.23, rather than the latest which was 337.88), and everything is now bueno!
Two hiccoughs along the way: First, when I tried to uninstall the Nvidia driver the first time, when I restarted I got the login screen (which was a good sign), but it quickly went black again. I powered down, restarted in safe mode again, and repeated the uninstallation process, and it worked the second time. Second, when I started the manual install of the 335.23 driver, the computer played a sound similar to the one for disconnecting a USB device, and the screen went black. I'd seen a lot about trying to increase the brightness (though it hadn't worked up to this point; but if you haven't tried it yet, might as well); I tried it, and it worked! So far I'm back up and running. [/fingers crossed]
Hope this helps someone else!

Ipod touch 4 has a black screen with white and green lines across it and wont turn off

My sons ipod touch has a black screen with sometimes white lines and then flashes to colored lines. Also when i try to turn it off it turns right back on and has the apple symbol but then goes back to black screen with lines. what to do?

- Try:
iOS: Not responding or does not turn on
- If not successful let the battery fully drain. After charging for at least an hour try again.
- If still problem time for an appointment at the Genius Bar of an Apple store.

My iphone 4s has a black screen. If I hold down the on button, it will occasionally flicker and then go black. How do I get it to turn on?

My Iphone 4s has a black screen. If I hold down the ON button, it will occasionally flicker and then go black again.
Is it dead? Is there any way to fix it? It's sitting in a bag of rice right now, a desperate measure.

Are you saying it got water damage? If not what mende1 suggested, or the following
http://support.apple.com/kb/TS3281
is the way to proceed. If it got wet all bets are off.

When I am on a call and I come to hang up, the phone which when to my ear has a black screen, starts to light up then blacks out intermittently and in the brief moments it is lit up, the hang up button doesn't work unless I press home or lock buttons firs

When I am on a call and I come to hang up, the phone which when to my ear has a black screen, starts to light up so I can see and click the hang up button, but it then blacks out intermittently and in the brief moments it is lit up, the hang up button doesn't work unless I press the home or lock buttons first

Wow- thanks Jim! I removed the case and voila... it worked. Knock on wood that you solved my problem with such an incredibly simple solution. I'll find out where this proximity sensor is and make sure my case does not interfere with it.
Thanks so much.
Annick

My ipod has just black screen and the home button is not working. what will i do? help please!

my ipod has just black screen and the home button is not working. what will i do? help please!

Try:
- iOS: Not responding or does not turn on
When it says place the iPodin recovery mode use this prgram.
RecBoot: Easy Way to Put iPhone into Recovery Mode
- 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.
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Apple Retail Store - Genius Bar

HT201412 My iphone 4 has a black screen with the itunes musical note logo. Below this a USB plug in with an arrow pointing up. It will do nothing else. What can I do to fix this problem?

Header 1
Header 2
My iphone4 has a black screen with the itunes logo. Below that is a USB port image with an arrow pointing up. The phone will do nothing else. How can I fix this problem?

Connect to iTunes on the computer you usually Sync with and “ Restore “...
http://support.apple.com/kb/HT1414
If necessary Place the Device into Recovery mode...
http://support.apple.com/kb/HT1808

My IPod Touch has a black screen. When held in an angle u can see the slider to unlock it but it will not respond to my touch

my ipod has a black screen. When I hold it at an angle i can see the unlock bar and date/time. It will not respond to my touch to unlock it. Any ideas to what is wrong with it?

Try:
- Reset the iOS device. Nothing will be lost
Reset iOS device: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Restore from backup. See:
iOS: How to back up
- Restore to factory settings/new iOS device.
- Make an appointment at the Genius Bar of an Apple store.
Apple Retail Store - Genius Bar

My iPod Has A Black Screen And It Won't Turn On . It Is Has A Full Battery But It Wont Turn On

my ipod has a black screen and it wont turn on . this is the very first time this happend. it has a full battery

That symptom is covered here:
iPod touch: Hardware troubleshooting

My HP Pavillion dv4 has a black screen and blinking Caps and Num lock

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