My Apple TV (gen 2) shows a blank screen on start up. How do I fix? Not sure I have latest update loaded.

Hi, I have opened my Apple TV and it has a blank (black) screen. When I press Menu, I get the blip sound but can't get a picture. I have wiggled the HDMI cable. Not sure that I have latest update, and not sure how to find what version I have without a screen. Can I find this on my Mac. Help!

Restore.
Apple TV (2nd and 3rd generation): Restoring your Apple TV - Apple Support

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My MacBook Pro shows a grey screen at start-up how do I fix this problem?

My MacBook Pro shows a grey screen when I try to login and won't go onto my homepage. Why has this happened and how do I fix it?

Take each of these steps that you haven't already tried. Stop when the problem is resolved.
Step 1
The first step in dealing with a startup failure is to secure the data. If you want to preserve the contents of the startup drive, and you don't already have at least one current backup, you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data that has changed since the last backup, you can skip this step.
There are several ways to back up a Mac that is unable to start. You need an external hard drive to hold the backup data.
a. Start up from the Recovery partition, or from a local Time Machine backup volume (option key at startup.) When the OS X Utilities screen appears, launch Disk Utility and follow the instructions in this support article, under “Instructions for backing up to an external hard disk via Disk Utility.” The article refers to starting up from a DVD, but the procedure in Recovery mode is the same. You don't need a DVD if you're running OS X 10.7 or later.
b. If Step 1a fails because of disk errors, and no other Mac is available, then you may be able to salvage some of your files by copying them in the Finder. If you already have an external drive with OS X installed, start up from it. Otherwise, if you have Internet access, follow the instructions on this page to prepare the external drive and install OS X on it. You'll use the Recovery installer, rather than downloading it from the App Store.
c. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, start the non-working Mac in target disk mode. Use the working Mac to copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
d. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.
Step 2
If the startup process stops at a blank gray screen with no Apple logo or spinning "daisy wheel," then the startup volume may be full. If you had previously seen warnings of low disk space, this is almost certainly the case. You might be able to start up in safe mode even though you can't start up normally. Otherwise, start up from an external drive, or else use the technique in Step 1b, 1c, or 1d to mount the internal drive and delete some files. According to Apple documentation, you need at least 9 GB of available space on the startup volume (as shown in the Finder Info window) for normal operation.
Step 3
Sometimes a startup failure can be resolved by resetting the NVRAM.
Step 4
If you use a wireless keyboard, trackpad, or mouse, replace or recharge the batteries. The battery level shown in the Bluetooth menu item may not be accurate.
Step 5
If there's a built-in optical drive, a disc may be stuck in it. Follow these instructions to eject it.
Step 6
Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to start up, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can start up now, one of the devices you disconnected, or a combination of them, is causing the problem. Finding out which one is a process of elimination.
Step 7
If you've started from an external storage device, make sure that the internal startup volume is selected in the Startup Disk pane of System Preferences.
Start up in safe mode. Note: If FileVault is enabled, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Post for further instructions.
Safe mode is much slower to start and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
The login screen appears even if you usually log in automatically. You must know the login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
When you start up in safe mode, it's normal to see a dark gray progress bar on a light gray background. If the progress bar gets stuck for more than a few minutes, or if the system shuts down automatically while the progress bar is displayed, the startup volume is corrupt and the drive is probably malfunctioning. In that case, go to Step 11. If you ever have another problem with the drive, replace it immediately.
If you can start and log in in safe mode, empty the Trash, and then open the Finder Info window on the startup volume ("Macintosh HD," unless you gave it a different name.) Check that you have at least 9 GB of available space, as shown in the window. If you don't, copy as many files as necessary to another volume (not another folder on the same volume) and delete the originals. Deletion isn't complete until you empty the Trash again. Do this until the available space is more than 9 GB. Then restart as usual (i.e., not in safe mode.)
If the startup process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
Step 8
Launch Disk Utility in Recovery mode (see Step 1.) Select the startup volume, then run Repair Disk. If any problems are found, repeat until clear. If Disk Utility reports that the volume can't be repaired, the drive has malfunctioned and should be replaced. You might choose to tolerate one such malfunction in the life of the drive. In that case, erase the volume and restore from a backup. If the same thing ever happens again, replace the drive immediately.
This is one of the rare situations in which you should also run Repair Permissions, ignoring the false warnings it may produce. Look for the line "Permissions repair complete" at the end of the output. Then restart as usual.
Step 9
If the startup device is an aftermarket SSD, it may need a firmware update and/or a forced "garbage collection." Instructions for doing this with a Crucial-branded SSD were posted here. Some of those instructions may apply to other brands of SSD, but you should check with the vendor's tech support.
Step 10
Reinstall the OS. If the Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
Step 11
Do as in Step 9, but this time erase the startup volume in Disk Utility before installing. The system should automatically restart into the Setup Assistant. Follow the prompts to transfer the data from a Time Machine or other backup.
Step 12
This step applies only to models that have a logic-board ("PRAM") battery: all Mac Pro's and some others (not current models.) Both desktop and portable Macs used to have such a battery. The logic-board battery, if there is one, is separate from the main battery of a portable. A dead logic-board battery can cause a startup failure. Typically the failure will be preceded by loss of the settings for the startup disk and system clock. See the user manual for replacement instructions. You may have to take the machine to a service provider to have the battery replaced.
Step 13
If you get this far, you're probably dealing with a hardware fault. Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.

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Same issue. Have tried connecting it iTunes to see if it's recognising it for restore?

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Try these in order - from best option on down...
1. Do you have an up-to-date back up? If so, try copy the library6.iphoto file from the back up to the iPhoto Library (Right Click -> Show Package Contents) allowing it to overwrite the damaged file.
2. Download <a href="http://www.fatcatsoftware.com/iplm/"><b><u>iPhoto Library Manager</b></u></a> and use its rebuild function. This will create a new library based on data in the albumdata.xml file. Not everything will be brought over - no slideshows, books or calendars, for instance - but it should get all your albums and keywords back.
Because this process creates an entirely new library and leaves your old one untouched, it is non-destructive, and if you're not happy with the results you can simply return to your old one.
3. If neither of these work then you'll need to create and populate a new library.
To create and populate a new *iPhoto 08* library:
Note this will give you a working library with the same Events and pictures as before, however, you will lose your albums, keywords, modified versions, books, calendars etc.
In the iPhoto Preferences -> Events Uncheck the box at 'Imported Items from the Finder'
Move the iPhoto Library to the desktop
Launch iPhoto. It will ask if you wish to create a new Library. Say Yes.
Go into the iPhoto Library (Right Click -> Show Package Contents) on your desktop and find the Originals folder. From the Originals folder drag the individual Event Folders to the iPhoto Window and it will recreate them in the new library.
When you're sure all is well you can delete the iPhoto Library on your desktop.
In the future, in addition to your usual back up routine, you might like to make a copy of the library6.iPhoto file whenever you have made changes to the library as protection against database corruption.

Hey guys. my macbook air wont get past the screen with the apple on it during start up. how do i fix this? i have a paper saved on my laptop on need to get at it. thanks guy!

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Your boot drive is damaged in some way. If you have an original installation disc, you can boot from that and run Disk Utility. From DU you can select your internal hard drive ("Macintosh HD" is the name Apple puts on it - you may have renamed yours) and select "Verify Disk". If errors come up, try "Repair Disk". If it repairs, then you should be able to restart and boot from it. If it doesn't show up or won't repair, your drive is probably hosed.
Clinton

MY MAC BOOK ONLY SHOWS A BLANK SCREEN ON START UP

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Screen would not 'light' after a sleep period (about an hour).
Neither touching the SPACE BAR nor pressing the mouse button had an effect on the screen. However, pressing keys indicated a computer response.
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Based on Apple Support & Mac Support groups:
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Restarted holding Command/S to get UNIX start. The screen did function properly (my knowledge of UNIX is limited - I did NOT attempt a fix from this prompt).
Restarted from the ORIGINAL DVD that came with the machine and the START UP was NORMAL and the SCREEN was NORMAL. This DVD was an install DVD so I used QUIT from the menu bar and the system was still functioning correctly.
Subsequent tests of the SLEEP/WAKE cycles produced normal results with no screen problems.
There are still no problems after two subsequent use periods with normal shut downs and normal start ups.

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Hello there, Nina2800.
It sounds like you are having issues connecting to the iTunes Store and getting a blank page. The following Knowledge Base article offers up some great steps for verifying connectivity:
Can't connect to the iTunes Store
http://support.apple.com/kb/TS1368
Troubleshooting on a Mac
If you haven't been able to connect to the iTunes Store, a software conflict or your internet service provider (ISP) may be blocking your access.
Update iTunes to the latest version.
If you have a firewall, your settings may be preventing you from connecting to the iTunes Store. To configure your firewall, please refer to the "Blocked by firewall" section in this article.
You may need to reset your keychain. Connection issues are occasionally caused by keychain issues. Click here to find out how to use Keychain First Aid to resolve any issues with your keychain.
If you are receiving a specific error message you may want to see, the "Specific Conditions and Alert Messages" section in this article as needed.
If the issue still persists, contact your internet service provider and confirm that the ports and servers in this article are enabled over your network.
Additionally, this article provides some additional recomendations if the issue persists:
iTunes: Advanced iTunes Store troubleshooting
http://support.apple.com/kb/ts3297
Thanks for reaching out to Apple Support Communities.
Cheers,
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Reset iOS device: Hold down the On/Off button and the Home button at the same time for at
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Apple Retail Store - Genius Bar

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HT204400 Light is flashing continueously on the front of the apple tv. No picture and no sound. Does anyone know what is wrong? Everything is plug in correctly. When I disconnect everything and re plug it in the apple icon comes up, but then blank screen

Light is flashing continueously on the front of the apple tv. No picture and no sound. Does anyone know what is wrong? Everything is plug in correctly. When I disconnect everything and re plug it in the apple icon comes up, but then blank screen with no sound and no picture. Does anyone know what is wrong?
l have an apple tv 2 generation please help me

Welcome to the Apple Community.
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Select your Apple TV in the Devices list, and then click Restore.
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My Apple TV (gen 2) shows a blank screen on start up. How do I fix? Not sure I have latest update loaded.

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