Red line across screen imac

i just bought a iMac 21,5" (2012) for 7 days.
and i found a red line across the iMac screen sometimes.
no problem found from the diagnostic mode.
any other method for me to check the problem?
or can i have a product return or refund, but not repair for this case?
i will be very disappointed, if there is any QC issue for apple product.

You can return a new Mac within 14 days of purchase.
Return it and get another one.
A new Mac comes with 90 days of free tech support from AppleCare.
AppleCare: 1-800-275-2273

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IPad red line across screen

I was just using my iPad normally when all of a sudden, a red line appeared across the screen one pixel wide. I tried to restart and reset. Is there some other solution?

If resetting didn't fix it, it appears you have a bad screen. You'll have to contact Apple by phone or at the Genius bar at an Apple store.
They may replace your iPad, even if it is out of warranty, though I strongly doubt that. Otherwise, you can purchase a refurbished one on exchange as long as there is no water damage:
If you own an iPad that is ineligible for warranty service but is eligible for Out-of-Warranty (OOW) Service, Apple will replace your iPad with an iPad that is new or equivalent to new in both performance and reliability for the Out-of-Warranty Service fee listed below.
iPad model
Out-of-Warranty Service Fee
iPad mini
$219
iPad 3rd, 4th generation
$299
iPad 2, iPad
$249
A $6.95 shipping fee will be added if service is arranged through Apple and requires shipping. All fees are in US dollars and are subject to local tax.
Certain damage is ineligible for out-of-warranty service, including catastrophic damage, such as the device separating into multiple pieces, and inoperability caused by unauthorized modifications. However, an iPad that has failed due to contact with liquid may be eligible for out-of-warranty service.
Apple reserves the right to determine whether or not your iPad is eligible for Out-of-Warranty service. Replacement iPads have a 90-day limited hardware warranty or assume the remainder of your standard warranty or AppleCare service contract coverage, whichever is longer. Please see the AppleCare+ for iPad and Apple Repair Terms And Conditions for further details.

White screen with battery with red line across- software issue

My phone froze last week when I plugged it in for the night. The battery had been dying pretty quickly for the 2 weeks before that. So i took out the battery and put it back in and then this white screen appeared with a battery and a red line across. I replaced the battery and it still gives me the same message. I tried pluggin the fone into the computer and reloading the software from the blackberry site and still nothing. The computer is not even registering that the fone is plugged in. Help please! I am running out of ideas!

My phone froze last week when I plugged it in for the night. The battery had been dying pretty quickly for the 2 weeks before that. So i took out the battery and put it back in and then this white screen appeared with a battery and a red line across. I replaced the battery and it still gives me the same message. I tried pluggin the fone into the computer and reloading the software from the blackberry site and still nothing. The computer is not even registering that the fone is plugged in. Help please! I am running out of ideas!

HT2807 why is there a horizontal line across my imac screen?

why is there a horizontal line across my imac screen?

Not sure exactly which model your iMac is..?
see > How to identify iMac models
Sadly display lines generally indicate a problem with either the Display or the Graphic's Chip.
To check, take a screen shot of the display using the (Command Shift 3) keys and open it.
If the line is only seen on the Display and not in a screen shot, then it would most likely indicate a Display problem.
If the line shows up in a screen shot, then it would most likely indicate a Graphic's Ciip problem.

Thin Horizontal Line Across Screen

I've had them before and they disappeared spontaneosly. The latest one seems to want to hang around. Any idea how to get rid of it?

This is a followup to my post earlier today. A web search on "Thin Horizontal Line Across Screen" turned up this article:
http://www.daniweb.com/techtalkforums/post24947-5.html
Sure enough, my horizontal line came back. I decided to follow the advice in the linked article. I didn't even have to twist the monitor. I barely tapped the screen as I was reaching up to twist the panel, and the line disappeared. This suggests to me that the problem is a loose internal connection between the driver circuitry and the panel.

IMac boots to bit-mapped rows of diaganol lines across screen & then freeze

Im not sure where to post this. Unsure if it's a start-up or a display problem - or both ...
A friend of mine was trying to install boot camp on her 17" Early 2006 but the installation failed half-way through ...
Now, when the machine is switched back on - serious square or bit-mapped looking rows of diagonal lines appear from top to bottom on the screen at 30mm gaps ... it boots up OK to the grey Apple Screen with the spinning cog below - then the lines disappear and the blue start-up screen - looks like it's about to show the 'Starting Mac OS X' window - but then stops - and the cursor changes to a weird rectangular mess - and nothing else happens ... the cursor still moves - so I know the system is not completely frozen - it just won't boot past the blue screen ...
The only way I can get it to boot to the desktop is in Safe Mode (shift key at start-up) - but it boots all the way with the diagonal lines.
Here's what I have tried so far ...
* - reset pram
* - targeted it to another intel mac and used Disk Utility to zero the hard disk to a single Mac OS Extended (journaled) partition (erasing the previous XP portion created by the botched Boot Camp assistant).
* - a clean install of Mac OS X.4.6 via a 'C' boot.
* - restarted into safe mode holding the 'shift' key to get to the desktop.
* - run software update to see if there were any new EFI or Firmware updates.
all to no avail ...
I have also scanned the Apple downloads pages and here in the discussions.
And also the Boot Camp discussions - I can find only one other post with a similar issue - but there is no 'fix' or solution posted ...
My hunch is the firmware has been affected by the boot camp installer - or something to do with the EFI parameters on the video board.
I have tried everything Apple suggests - including an attempt to reinstall the firmware via a hard press of the power button and inserting a special install firmware install CD from Apple downloads - but I can't get the firmware bar to load at start up ...
If I try reinstalling the latest firmware update - I get a message saying "Your Firmware is up to date' - or 'This update is not needed on this machine' ...
Q: Is there a stand-alone installer that will reinstall the firmware - without doing a version check - and just do a fresh firmware install ... ?
Does anyone know a way around the version check.
I am convinced this issue is a software/firmware related problem - I sense the EFI settings have screwed up the video settings on the board - and I all i want to do is refresh them.
It's still under it's initial 1 year warranty - but I'm not sure a botched Boot Camp install is covered ...
Sorry for the long post - but I'm hoping a nice apple guru can help me out with this 'very hairy' problem ..
... macfinger - auckland city
17" intel imac early 2006 1.8GHZ 512RM

OK - here's the result of the rows of diagonal lines across the screen on the 17" Intel Core Duo iMac, which I posted last week ...
The logic board was definitely faulty - it could not be repaired by firmware or otherwise ... the service centre was very vague about which area or part of the board failed - but I suspect it was the embedded video board or VRAM ...
(actually - I still reckon it was a botched firmware - but seeing as Apple's 'Open Firmware' is nor strictly 'Closed Firmware' .... there was no way of actually testing that theory for sure ...
From what my friend has told me - she said this fault was the result of a botched Boot Camp XP installation when loading the Windows drivers from the Mac generated Drivers Install CD which froze - and then trying to boot back into Mac OS X by doing a hard restart, after it failed ...
A message to any future readers of this post:
If your machine shows signs of of the above symptoms - you'll have to return it to an Authorised Apple Service Centre to have the logic board replaced (hopefully under warranty) ...
BE SURE AND BACK UP ALL OF YOUR PERSONAL USER DATA FIRST - AS THERE WILL BE NO GUARANTEE YOUR USER FOLDER WILL BE RETAINED WHEN YOU GET YOUR MACHINE BACK ...
You can still access your HD by doing a safe boot: hold the 'Apple' & 'S' keys immediately after you hear the start-up 'chimes' ....
Once you're back to your desktop - use your machines internal CD-RW/DVD to copy your files to disk ... it's a bit tricky with all the lines across the screen - but persevere - 'cause that's what we did - and we know it can be done.
Good luck ...

Vertical red line on my iMac computer screen.

I have a vertical red line on my 2009 21.5 inch all-in-one iMac. I can see it on the desktop and it's also there regardless of what window or application I'm running. I'm not sure what caused it but I sure would like to know if I can get rid of it. Thanks!

Having read some related discussions after I posted (my apologies), it appears there's no solution but that I need a new display. Can I get a ballpark estimate on the cost please? BTW, the line goes only about 3/4 of the distance from the bottom of the screen to the top of the screen.

Red Lines Across the screen?!

I did a search but didn't find anything similar to what I'm experiencing. I watch DVDs and movies on my iBook and noticed lately that the screen will have a reddish hue. I can adjust the screen and it will go away, but I've noticed it's happening more and more, and also getting harder to adjust the screen where the red lines are not showing up. I'm trying to figure out if it is a connection cable or the LCD. I can still get a clear picture with the LCD, but if I move it just a little, they come back.

You can follow the directions here:
http://www.keepandshare.com/doc/view.php?id=1132604&da=y
(You will need to download the PDF.)
Choose the links for the number of "Things to do first" from iFixit's website here:
http://www.ifixit.com/Guide/Device/iBookG312%22

Horizontal red lines across video after rendering

Hi I was color correcting a video in Adobe Premiere Pro Cs5 and had remove some noise with Neat Video. The video looks fine with the small screen, however, I adjusted it to full screen and noticed a lot of red horizontal lines across the whole video. The video was 720x480. I would like to know what am I doing wrong. I'm a beginner in color correction and using Adobe Premiere Pro. Thanks.
Gerald W. McClaren Sr.

i hope the picture helps you. There's not much information to get. It only happens after I finish rendering. I'm using adobe cs4 premiere. There is nothing wrong with the footage.

Red line on screen

How can I fix my ipod touch 4g if there is a red line in the middle of my screen and occasionally it flickers to a white line across the entire screen and makes my screen blink? It goes away sometimes if I leave my ipod alone for a while but then it comes back quickly.

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.
- Reset all settings
Go to Settings > General > Reset and tap Reset All Settings.
All your preferences and settings are reset. Information (such as contacts and calendars) and media (such as songs and videos) aren’t affected.
- 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

Start Up Screen Freeze With Lines Across Screen

The computer is the iSight version. In moving it from one room to another I shut it down properly. I had a back-up HD with Time Machine which I shut down properly. When I tried to restart it shortly after at the new location, the start up chime sounded and the Apple logo came on with the spinning wheel but the screen had light blue horizontal lines across it. The lines at first seemed squiggly but after restarting a few times, the screen seemed to be divided into vertical columns about 3/4" wide with one column having pixels colored light blue and the next column having the same coloration but the row of colored pixels was above the previous one. This arrangement alternated across the screen. I hope this is clear. After a while the spinning wheel and the screen froze and the computer would not continue with the start up.
I reset the SMU by unplugging the power cord, etc. but this did not work. I tried restarting in safe mode-negative. I tried restarting from the original disc-negative. Initially, it sounded like the disc was working because it makes a distinctive noise when a disc is working in the drive but eventually the same initial screen came on with the wheel spinning and then freezing. I tried the current versions of Techtool Pro and Disc Warrior and neither worked. The same thing happened. The noise from the disc drive but the same screen would come on and then the spinning wheel would freeze. Initially the screen with the Apple and the spinning wheel and the lines came on quickly but after a number of times turning the computer on and off, the screen remained dark with a faint light and when the screen came up, the spinning wheel was already frozen.
I use a flight simulator-X-Plane- a lot and some times when I leave it on, screen saver comes on and when I bring the screen back up, the first screen that came up and quickly changed had to do with X-Plane but not with what I was doing. Also, sometimes when I left it and came back there was a different screen but still part of X-Plane but not the screen I left before. I don't know if this is related to my problem or specific with X-Plane. I brought it up because this is the only thing that was different prior to this problem but may not be related. Right now, I've turned it off(obviously) and disconnected the power cord and the keyboard.
Any help would be appreciated.

I've started taking the iSight apart. Detaching the plastic took some time and care but with only a few tears. Separated the screen. The main board is positioned such that the capacitors are on the bottom. So many connections and most of them small. Have to be careful. So many small screws. I hope I can remember where they all go when I put everything together-I hope. I'm at the point where I've turned the main board over so that the capacitors are showing. I hope I can reconnect correctly. Two capacitors have a slight bulge at the top compared to the others. Although I am not sure whether these two are part of the problem. There is another one that has no bulge but there seems to be some stuff on the top. It is not corrosion so I'm not sure whether it was manufactured that way or something is wrong with it. I finally found the battery. Just to change it is such a job. You have to disconnect a lot of stuff and turn the board over to get at it unless Apple technicians have a shortcut. Do you think the battery could cause the problems I have? Anyway, if I have the board exposed already might as well try and change the capacitors. I have not come across any video that shows how to expose the underbelly of the main board. Nor have I seen any video that shows what each part is. On the left side of the layout is an long rectangular shape covered over with black plastic. I haven't checked it out but I assume it is the power source. At the upper left there is a rectangular board with capacitors underneath but there are connections underneath that are so tightly stuffed that I couldn't turn it over but I could lift it up a little and see the heads of some capacitors and there wasn't any bulging capacitors or corrosion. There's one big capacitors under there. Much bigger then those on the mother board. Interesting observation. When I turned the screen over to expose its back most of it was frosted except for a small rectangular piece that was dark but glassy like and the glass like part lies exactly on the small rectangular board about 4X5 or 4X6. Interesting why this small section of the back of the screen should be different from the rest of the back and why it should be exactly above the smaller board. Like the previous versions of iMac, it would be so easy to be able to open the back and have all of the capacitors exposed. My next action is to contact one of the references you posted and see if I can get these three capacitors and the battery from Radio Shack or somewhere and solder the capacitors to the mother board. After all of this putting the whole thing together correctly without ending up with extra parts. One thing did break. Next to the fan in the middle there is a piece of metal attached to the back. There is a small narrow slot in this metal that another piece of bent metal seems to go into and was soldered to it and when everything is put together it seems, although I'm not sure, that this metal touches the back of the screen. It looks like I have to solder it back. I don't know what its purpose is, maybe it grounds the screen? I thought the piece of metal was something to pull in order to liftup something else. So far that is the only thing that has broken and hopefully can be easily fixed. But nothing that seems easy is easy.

Red line down screen

My monitor has a red line down the middle of the screen. Does anyone know why this is happening? Sometimes, depending on the background color, the line is green (on lighter backgrounds), otherwise it is red.

I have the EXACT same problem and also bought my iMac in Dec 2011. Thankfully I have AppleCare. I called support; had to back up the machine and take it in to an Apple Store for a new monitor and a new video card. They didn't seem to be all THAT horrified at the problem so perhaps it was a bad batch of monitors in that run of manufacturing.
Anyway, I'm using my MacBook for now and they expect the iMac to be fixed ready in 3-5 days.

Line across screen when switching between applications?

2011 21.5" iMac OS X Mavericks (10.9)
AMD Radeon HD 6770M 512
Since upgrading to Mavericks I have noticed a line across the screen during the genie effect when you open, close or minimize applications. The line is most noticable when minimizing an application which is on top of my wallpaper. The wallpaper is the default Mavericks image.
The line does not appear when scrolling or sliding back through pages in safari etc. The above is the only thing that will trigger the issue.
Is anyone else experiencing this or have a solution for it?

Do you have any third-party extensions installed? I googled and found several that will perform this auto-hide action: Quitling, App Presto, AutoHide, and DragThing are some of them.

Strange flickering lines across screen, opening Photobooth makes them go away?

Hi everyone,
I've been having a very strange problem with my 2011 Macbook Pro 15" for quite a long time now. It's basically flickering lines across the screen, and the screen 'folds' in on itself, squashing the display vertically and stacking them on top of each other. Sometimes it's terrible, sometimes it's bearable. Sometimes the screen goes completely black. It's super weird. Here's a photo I took my phone, as I screenshotting shows nothing out of the ordinary:
The really really weird thing is that when I open Photobooth, as in the apple webcam program, the problem completely goes away (until I quit it). I had hoped this was a software issue, so I backed up and formatted my hard drive and then installed a fresh copy of OS X - and the exact same thing happens! I barely made it through the system setup!
I beg, someone help me!

Please read this whole message before doing anything.
This procedure is a diagnostic test. It won’t solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
Third-party system modifications are a common cause of usability problems. By a “system modification,” I mean software that affects the operation of other software — potentially for the worse. The following procedure will help identify which such modifications you've installed. Don’t be alarmed by the complexity of these instructions — they’re easy to carry out and won’t change anything on your Mac.
These steps are to be taken while booted in “normal” mode, not in safe mode. If you’re now running in safe mode, reboot as usual before continuing.
Below are instructions to enter some UNIX shell commands. The commands are harmless, but they must be entered exactly as given in order to work. If you have doubts about the safety of the procedure suggested here, search this site for other discussions in which it’s been followed without any report of ill effects.
Some of the commands will line-wrap or scroll in your browser, but each one is really just a single line, all of which must be selected. You can accomplish this easily by triple-clicking anywhere in the line. The whole line will highlight, and you can then copy it. The headings “Step 1” and so on are not part of the commands.
Note: If you have more than one user account, Step 2 must be taken as an administrator. Ordinarily that would be the user created automatically when you booted the system for the first time. The other steps should be taken as the user who has the problem, if different. Most personal Macs have only one user, and in that case this paragraph doesn’t apply.
Launch the Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
When you launch Terminal, a text window will open with a line already in it, ending either in a dollar sign (“$”) or a percent sign (“%”). If you get the percent sign, enter “sh” and press return. You should then get a new line ending in a dollar sign.
Step 1
Triple-click the line of text below to select it:
kextstat -kl | awk '!/com\.apple/{printf "%s %s\n", $6, $7}' | open -f -a TextEdit
Copy the selected text to the Clipboard by pressing the key combination command-C. Then click anywhere in the Terminal window and paste (command-V). A TextEdit window will open. Post the contents of that window, if any — the text, please, not a screenshot. You can then close the TextEdit window. The title of the window doesn't matter, and you don't need to post that. No typing is involved in this step.
Step 2
Repeat with this line:
{ sudo launchctl list | sed 1d | awk '!/0x|com\.(apple|openssh|vix)|org\.(amav|apac|cups|isc|ntp|postf|x)/{print $3}'; sudo defaults read com.apple.loginwindow LoginHook; } | open -f -a TextEdit
This time you'll be prompted for your login password, which you do have to type. Nothing will be displayed when you type it. Type it carefully and then press return. You may get a one-time warning to be careful. Heed that warning, but don't post it. If you see a message that your username "is not in the sudoers file," then you're not logged in as an administrator.
Note: If you don’t have a login password, you’ll need to set one before taking this step. If that’s not possible, skip to the next step.
Step 3
launchctl list | sed 1d | awk '!/0x|com\.apple|org\.(x|openbsd)/{print $3}' | open -f -a TextEdit
Step 4
ls -1A /e*/mach* {,/}L*/{Ad,Compon,Ex,Fram,In,Keyb,La,Mail/Bu,P*P,Priv,Qu,Scripti,Servi,Spo,Sta}* L*/Fonts 2> /dev/null | open -f -a TextEdit
Important: If you formerly synchronized with a MobileMe account, your me.com email address may appear in the output of the above command. If so, anonymize it before posting.
Step 5
osascript -e 'tell application "System Events" to get name of every login item' | open -f -a TextEdit
Remember, steps 1-5 are all copy-and-paste — no typing, except your password. Also remember to post the output.
You can then quit Terminal.

IPhone 3G has horizontal line across screen

Today my iPhone developed a line across the screen where the colour is inverted all the time. A restart and a reset have not fixed it. Anyone else had this? Any cure or do I need to send it back (again)?

You will need to send it back or visit a local genius bar. They will do a restore on your phone before replacing it, I had this issue once. Good luck

Red line across screen imac

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