A0020 model of screen in Macbook Pro Retina 13' (Late 2013)

A0020 model of screen in Macbook Pro Retina 13'. Anyone know who is the manufacturer of this screen? I've tried to find it on the internet, but it's seems that nobody know. I'm worried a little bit about that, because I didn't knew about the problem with the LG displays in Mac. In case that it's  LG, there is some instructions how to prevent screen degradation?

Go step by step and test.
1. Reset SMC.     http://support.apple.com/kb/HT3964
    Choose the method for:
    "Resetting SMC on portables with a battery you should not remove on your own"
   2. Reset PRAM:   http://support.apple.com/kb/PH14222
  3. http://support.apple.com/kb/PH13977
Best.

Similar Messages

  • Macbook Pro Retina 13" late 2013 My screen has developed vertical lines down the left hand side and they are multiplying

    Macbook Pro Retina 13"late 2013   2.4GHz Intel Core i5  8 GB 1600 MHz  DDR3  Intel Iris 1536MB  251 GB Flash.
    My screen has developed vertical lines down the left hand side yesterdays photo there is more today.

    You'd better make Genius Bar appointment to show them the problem.

  • MacBook Pro retina 13" (late 2013, Haswell) why is the highest resolution rendered in 3360x2100, which the system obviously can't handle?!

    Hey Apple and Apple users,
    I just recently switched from an MacBook Air (mid 2013) to the new Haswell MacBook Pro retina 13" (late 2013 model).
    The main reason to do so was the better screen and the option to run higher scaled resolutions, as advertised.
    I was willing to trade in the Air's low weight, smaller formfactor and the extra batterylife for the better screen.
    When it comes to resolutions:
    1280x800 is just a joke nowadays, why is the MacBook Pro still based on it? 13" and 1440x900 work quite fine...see MacBook Air.
    1440x900 is okay in everyday life situations, but sometimes you just need "more space" as the third scaling option calls it as well in the display-settings.
    1680x1050 on 13" can sometimes be challenging, but it is really fine if you need to work and have a lot UI elements to deal with (Photoshop etc.)
    So 1680x1050 scaled on the 2560x1600 screen would be my daily driver for work. So I expected a scaling factor of "1.5238..." (2560/1680) will be used most of the time.
    Frankly spoken...I am really disappointed by the 13" retina MacBook Pro and the way OS X Mavericks is handling the scaling.
    It obiously works well and responsive with the 1280x800 non-scaling resolution ("best for retina, scaling factor 2: 1280 --> 2560).
    Is still "okay-snappy" at 1440x900 (scaling factor 1.777...: 1440 --> 2560).
    But it totally breaks down at 1680x1050 (scaling factor 1.523...: 1680 --> 2560).
    I use "Mission Control" all the time and it is stuttering and slow...overall a sluggish and unbearable experience.
    The same goes for Desktop-Switching by swiping the screens or resizing and moving windows and files around.
    So I was wondering why...and then I noticed that when taking a screenshot of my entire screen (CMD + 3) the image size of the screenshot was 3360x2100 and not the expected 2560x1600.
    This means Mavericks is not scaling the UI with the appropriate factor (see above). For retina MacBooks it ist simply rendering one pixel of the classic, non-retina Interface in now 4 pixels (2x2) and sending this straight to the screen, which then "scales" it down to the resolution it is able to display.
    Why is this bothering me? – Because the machine has to do a lot more work to render the higher resolution that can't even be displayed, due to the screens limitations.
    2560x1600 = 4096000 pixels = 100%
    3360x2100 = 7056000 pixels = 172%
    This means the MacBook has to render 72% more information than actually can be displayed on the built-in screen and are just lost.
    Of course this makes the overall UI feel sluggish and idly! Especially with the not that performant Intel Iris IGP and no dedicated graphics card.
    All this extra "rendering" just results in a worse battery life due to the extra work that the graphics card and CPU have to do.
    First, Apple...are you serious about this?
    What can we do about this?
    Is there a way to have this properly scaled?
    Thanks in advance to everyone.

    Okay...I thought deeply about this issue.
    Even looking into ways to maybe fixing this on the software side. But it occured to me that this is to deeply embedded into the system that it won't be possbile to come up with a sufficient third-party solution.taht
    The problem is that there is no intermediate step inbetween "standard DPI" graphics and "HiDPI" (image-resources named "[email protected]").
    But there should be one, to minimize the amount of image information that needs to be processed by the device.
    This effects especially the MacBook Pro retina 13", as it has the less powerful Intel Iris IGP, when performing on the highest scaled resolution (equivalent to 1650x1080).
    As well as the MacBook Pro retina 15" without a dedicated, second Graphics Unit,when performing on the highest possible scaled resolution (equivalent to 1920x1200).
    Those devices don't have enough resources to handle the consequential "HiDPI" resolutions of 3360x2100 for the 13" and 3840x2400 for the 15" model.
    (Comment: 3840x2400 = 9,2MP, which is more than the standard 4K resolution of 3840x2160.
    I analyzed the scaling factors as follows:
    Factor "2" to display 1280x800 on the 13" model and 1440x900 on the 15" model in HiDPI.
    Factor "1.777..." would be required to display 1440x900 on the 2560x1600 screen of the 13" model.
    Factor "1.714..." would be required to display 1650x1080 on the 2880x1800 screen of the 15" model.
    Factor "1.523..." would be required to display 1650x1080 on the 2560x1600 screen of the 13" model.
    Factor "1.5" would be required to display 1920x1200 on the 2800x1800 screen of the 15" model.
    As all the models seem to have no problem with rendering the intermediate scaling step (1440x900 for the 13" and 1680x1050 for the 15" model) at HiDPI, hence with the scaling factor 2. There is no real need to provide the UI-elements.
    But in my opinion there is a strong need for a "MidDPI" ([email protected]) intermediate step for all the UI graphic elements that wis based on the scaling factor 1.5.
    This would result in the following:
    13" MacBook Pro retina with 2560x1600 screen:
    1280x 800 @ 2x = 2560x1600 (no surplus, native screen resolution)
    1440x 900 @ 2x = 2880x1800 (the surplus of 1088000px = ~1MP can still be handled and compansated by the weak Iris IGP)
    1680x1050 @ 2x = 3360x2100 (the surplus of 2960000px = ~3MP is too much for the weak Iris IGP)
    NEW 1680x1050 @ 1.5x = 2520x1575 (with a small border of left=20px, bottom=13, right=20, top=12 pixels, which means ~2,2mm and ~1.3mm around the 1.5x scaled image!).
    15" MacBook Pro retina with 2880x1800 screen:
    1440x900 @ 2x = 2880x1800 (no surplus, native screen resolution)
    1680x1050 @ 2x = 3360x2100 (the surplus of 1872000px = ~2MP can still be handled by the Iris Pro IGP)
    1920x1200 @ 2x = 3840x2400 (the surplus of 4032000px = ~4MP can't be handled sufficiently by the Iris Pro IGP)
    NEW 1920x1200 @ 1.5x = 2800x1800 (nu surplus, native screen resolution, no border needed!)
    The big advantage is that all the graphics have already been remodeled for the HiDPI mode.
    So scaling those "factor 2x" images down to "factor 1.5x" should be comparably easy!
    Example:
    Left: Traditional "standard DPI" icon of "all my files".
    Right: "@2x.png" for the "HiDPI" modes.
    Middle: "@1.5x.png" suggestions for the "MidDPI" mode; easily scaled down from the lovely HiDPI graphics.
    With this simple introduction of the "MidDPI" modes a significant amount of processing power can be saved.
    This not only improves battery life when driving those higher scaled resolutions, but also lets the user access those resources for what really matters: processing power for the primary job that the Mac needs to get done.
    Thanks in advance.

  • Frequent Kernel Panics on Macbook Pro Retina 15" late 2013

    Since a few weeks my Macbook Pro is suffering from frequent kernel panics. The logic board has already been replaced by the Apple but the panics keep occurring.
    Machine specs: Macbook Pro retina 15" late 2013, 2.6Ghz Core I7, 16GB Ram, 1TB SSD. This is the model with the discrete Nvidia graphics card.
    Already tried, clean install from usb, internet recovery, reset of SMC, PRAM, the machine passes the build in diagnostics and the Apple Store diagnostics.
    The following panics occur without specific action from my part so they can happen when the Macbook is idle or when in use. There is no other software installed in the machine than OS X Yosemite and the latest updates.
    Every kernel panic (currently 12 in the last 5 hours) show the latest loaded Kext, AppleHWSensor and latest unloaded Kext AppleFileSystemDriver which seems like more than a coincidence.
    Hopefully someone can point me in the direction of cause of the problem.
    Anonymous UUID:       520FBDBE-27D4-C829-C678-B83F981E20E0
    Thu Jan 22 11:13:09 2015
    *** Panic Report ***
    Machine-check capabilities: 0x0000000000000c0a
    family: 6 model: 70 stepping: 1 microcode: 15
    signature: 0x40661
    Intel(R) Core(TM) i7-4960HQ CPU @ 2.60GHz
    10 error-reporting banks
    Processor 0: IA32_MCG_STATUS: 0x0000000000000005
    IA32_MC9_STATUS(0x425): 0xfe4000c00002011b
    IA32_MC9_ADDR(0x426):   0x037205800007db26
    IA32_MC9_MISC(0x427):   0x00000003085581c0
    Processor 1: IA32_MCG_STATUS: 0x0000000000000005
    IA32_MC9_STATUS(0x425): 0xfe4000c00002011b
    IA32_MC9_ADDR(0x426):   0x037205800007db26
    IA32_MC9_MISC(0x427):   0x00000003085581c0
    Processor 2: IA32_MCG_STATUS: 0x0000000000000005
    IA32_MC9_STATUS(0x425): 0xfe4000c00002011b
    IA32_MC9_ADDR(0x426):   0x037205800007db26
    IA32_MC9_MISC(0x427):   0x00000003085581c0
    Processor 3: IA32_MCG_STATUS: 0x0000000000000005
    IA32_MC9_STATUS(0x425): 0xfe4000c00002011b
    IA32_MC9_ADDR(0x426):   0x037205800007db26
    IA32_MC9_MISC(0x427):   0x00000003085581c0
    Processor 4: IA32_MCG_STATUS: 0x0000000000000005
    IA32_MC9_STATUS(0x425): 0xfe4000c00002011b
    IA32_MC9_ADDR(0x426):   0x037205800007db26
    IA32_MC9_MISC(0x427):   0x00000003085581c0
    Processor 5: IA32_MCG_STATUS: 0x0000000000000005
    IA32_MC9_STATUS(0x425): 0xfe4000c00002011b
    IA32_MC9_ADDR(0x426):   0x037205800007db26
    IA32_MC9_MISC(0x427):   0x00000003085581c0
    Processor 6: IA32_MCG_STATUS: 0x0000000000000005
    IA32_MC9_STATUS(0x425): 0xfe4000c00002011b
    IA32_MC9_ADDR(0x426):   0x037205800007db26
    IA32_MC9_MISC(0x427):   0x00000003085581c0
    Processor 7: IA32_MCG_STATUS: 0x0000000000000005
    IA32_MC9_STATUS(0x425): 0xfe4000c00002011b
    IA32_MC9_ADDR(0x426):   0x037205800007db26
    IA32_MC9_MISC(0x427):   0x00000003085581c0
    panic(cpu 3 caller 0xffffff801781f12a): "Machine Check at 0xffffff801783af57, registers:\n" "CR0: 0x000000008001003b, CR2: 0x00007f800b060400, CR3: 0x000000001a904000, CR4: 0x00000000001626e0\n" "RAX: 0x0000000000000033, RBX: 0x07ffffffff85f496, RCX: 0x0000000000000001, RDX: 0x0000000000000000\n" "RSP: 0xffffff82030d3ee0, RBP: 0xffffff82030d3f20, RSI: 0xffffff8017ee8c40, RDI: 0xffffff8017e29d60\n" "R8:  0x0000000100000000, R9:  0x0000000000000000, R10: 0x0000000000000003, R11: 0x0000000000000200\n" "R12: 0x0000000000000000, R13: 0xffffff8017ee9640, R14: 0x00000000000009c0, R15: 0x0000000000000033\n" "RFL: 0x0000000000000046, RIP: 0xffffff801783af57, CS:  0x0000000000000008, SS:  0x0000000000000000\n" "Error code: 0x0000000000000000\n"@/SourceCache/xnu/xnu-2782.1.97/osfmk/i386/trap_native.c:1 68
    Backtrace (CPU 3), Frame : Return Address
    0xffffff81f7545e90 : 0xffffff801773a811
    0xffffff81f7545f10 : 0xffffff801781f12a
    0xffffff81f7546070 : 0xffffff801783acef
    0xffffff82030d3f20 : 0xffffff80178202ae
    0xffffff82030d3f40 : 0xffffff80177514bb
    0xffffff82030d3f90 : 0xffffff8017751970
    0xffffff82030d3fb0 : 0xffffff80178192c7
    BSD process name corresponding to current thread: kernel_task
    Mac OS version:
    14B25
    Kernel version:
    Darwin Kernel Version 14.0.0: Fri Sep 19 00:26:44 PDT 2014; root:xnu-2782.1.97~2/RELEASE_X86_64
    Kernel UUID: 89E10306-BC78-3A3B-955C-7C4922577E61
    Kernel slide:     0x0000000017400000
    Kernel text base: 0xffffff8017600000
    __HIB  text base: 0xffffff8017500000
    System model name: MacBookPro11,3 (Mac-2BD1B31983FE1663)
    System uptime in nanoseconds: 5128992840770
    last loaded kext at 4411235159: com.apple.driver.AppleHWSensor 1.9.5d0 (addr 0xffffff7f99d14000, size 36864)
    last unloaded kext at 85121680121: com.apple.driver.AppleFileSystemDriver 3.0.1 (addr 0xffffff7f99ff7000, size 8192)
    loaded kexts:
    com.apple.driver.AppleHWSensor 1.9.5d0
    com.apple.driver.AudioAUUC 1.70
    com.apple.driver.ApplePlatformEnabler 2.1.0d1
    com.apple.driver.AGPM 100.14.37
    com.apple.driver.X86PlatformShim 1.0.0
    com.apple.filesystems.autofs 3.0
    com.apple.driver.AppleOSXWatchdog 1
    com.apple.iokit.IOBluetoothSerialManager 4.3.1f2
    com.apple.driver.AppleGraphicsDevicePolicy 3.7.7
    com.apple.driver.AppleHDA 267.0
    com.apple.driver.AppleUpstreamUserClient 3.6.1
    com.apple.GeForce 10.0.0
    com.apple.iokit.IOUserEthernet 1.0.1
    com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.3.1f2
    com.apple.driver.AppleSMCLMU 2.0.4d1
    com.apple.driver.AppleLPC 1.7.3
    com.apple.driver.AppleMuxControl 3.7.21
    com.apple.driver.AppleThunderboltIP 2.0.2
    com.apple.driver.AppleMCCSControl 1.2.10
    com.apple.driver.AppleCameraInterface 5.23.0
    com.apple.driver.AppleIntelHD5000Graphics 10.0.0
    com.apple.driver.AppleIntelFramebufferAzul 10.0.0
    com.apple.Dont_Steal_Mac_OS_X 7.0.0
    com.apple.driver.AppleHWAccess 1
    com.apple.driver.AppleHV 1
    com.apple.driver.AppleUSBTCButtons 240.2
    com.apple.driver.AppleUSBCardReader 3.5.0
    com.apple.driver.AppleUSBTCKeyboard 240.2
    com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
    com.apple.BootCache 35
    com.apple.driver.AppleUSBHub 705.4.1
    com.apple.driver.XsanFilter 404
    com.apple.iokit.IOAHCIBlockStorage 2.6.5
    com.apple.driver.AppleAHCIPort 3.0.7
    com.apple.driver.AirPort.Brcm4360 901.19.10
    com.apple.driver.AppleUSBXHCI 705.4.14
    com.apple.driver.AppleSmartBatteryManager 161.0.0
    com.apple.driver.AppleACPIButtons 3.1
    com.apple.driver.AppleRTC 2.0
    com.apple.driver.AppleHPET 1.8
    com.apple.driver.AppleSMBIOS 2.1
    com.apple.driver.AppleACPIEC 3.1
    com.apple.driver.AppleAPIC 1.7
    com.apple.nke.applicationfirewall 161
    com.apple.security.quarantine 3
    com.apple.security.TMSafetyNet 8
    com.apple.kext.triggers 1.0
    com.apple.iokit.IOSerialFamily 11
    com.apple.driver.DspFuncLib 267.0
    com.apple.kext.OSvKernDSPLib 1.15
    com.apple.iokit.IOAudioFamily 200.6
    com.apple.vecLib.kext 1.2.0
    com.apple.nvidia.driver.NVDAGK100Hal 10.0.0
    com.apple.nvidia.driver.NVDAResman 10.0.0
    com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.3.1f2
    com.apple.driver.X86PlatformPlugin 1.0.0
    com.apple.iokit.IOUSBUserClient 705.4.0
    com.apple.driver.AppleHDAController 267.0
    com.apple.iokit.IOHDAFamily 267.0
    com.apple.driver.IOPlatformPluginFamily 5.8.0d49
    com.apple.driver.AppleGraphicsControl 3.7.21
    com.apple.driver.AppleBacklightExpert 1.1.0
    com.apple.driver.AppleSMBusController 1.0.13d1
    com.apple.iokit.IOSurface 97
    com.apple.iokit.IONDRVSupport 2.4.1
    com.apple.AppleGraphicsDeviceControl 3.7.21
    com.apple.iokit.IOAcceleratorFamily2 156.4
    com.apple.iokit.IOGraphicsFamily 2.4.1
    com.apple.iokit.IOBluetoothFamily 4.3.1f2
    com.apple.driver.AppleSMC 3.1.9
    com.apple.iokit.IOSCSIBlockCommandsDevice 3.7.0
    com.apple.iokit.IOUSBMassStorageClass 3.7.0
    com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.0
    com.apple.driver.AppleUSBMultitouch 245.2
    com.apple.iokit.IOUSBHIDDriver 705.4.0
    com.apple.driver.AppleUSBMergeNub 705.4.0
    com.apple.driver.AppleUSBComposite 705.4.9
    com.apple.driver.CoreStorage 471
    com.apple.driver.AppleThunderboltDPInAdapter 4.0.6
    com.apple.driver.AppleThunderboltDPAdapterFamily 4.0.6
    com.apple.driver.AppleThunderboltPCIDownAdapter 2.0.2
    com.apple.iokit.IOAHCIFamily 2.7.0
    com.apple.driver.AppleThunderboltNHI 3.1.7
    com.apple.iokit.IOThunderboltFamily 4.2.1
    com.apple.iokit.IO80211Family 700.52
    com.apple.driver.mDNSOffloadUserClient 1.0.1b8
    com.apple.iokit.IONetworkingFamily 3.2
    com.apple.iokit.IOUSBFamily 705.4.14
    com.apple.driver.AppleEFINVRAM 2.0
    com.apple.iokit.IOHIDFamily 2.0.0
    com.apple.driver.AppleEFIRuntime 2.0
    com.apple.iokit.IOSMBusFamily 1.1
    com.apple.security.sandbox 300.0
    com.apple.kext.AppleMatch 1.0.0d1
    com.apple.driver.AppleKeyStore 2
    com.apple.driver.AppleMobileFileIntegrity 1.0.5
    com.apple.driver.AppleCredentialManager 1.0
    com.apple.driver.DiskImages 389.1
    com.apple.iokit.IOStorageFamily 2.0
    com.apple.iokit.IOReportFamily 31
    com.apple.driver.AppleFDEKeyStore 28.30
    com.apple.driver.AppleACPIPlatform 3.1
    com.apple.iokit.IOPCIFamily 2.9
    com.apple.iokit.IOACPIFamily 1.4
    com.apple.kec.corecrypto 1.0
    com.apple.kec.Libm 1
    com.apple.kec.pthread 1

    Perhaps running Apple Diagnostics will provide a clue:
    http://support.apple.com/en-us/HT202731
    I suspect tha your best option is an appointment at an Apple store genius bar.  (bring the kernel panic report with you)
    Ciao.

  • Noise from MacBook Pro Retina 13 late 2013

    Hi,
    I wonder if noise from my MacBook Pro Retina 13 late 2013 is normal. I can hear it only in quiet room (first time I heard it in the middle of the night).  It’s very quiet noise. I don't know what to compare this noise. For me it’s sounds like clicking the spring. I can hear it when scrolling the webpage by trackpad, start mission control by gesture (or F3 key), changing the full screen apps by gesture or when minimize Safari or other apps. I think it depends on the graphic system work. It’s a little lauder when I use 1680x1050 scaled resolution than use 'best for display' resolution. I think the noise occurs when graphic system do some operation. Is it possible?
    Today I was in Authorized Service Provider but technician heard nothing. There I can't hear this noise too, because this noise is very quiet and there is not total silence. Diagnostic tools show that everything is ok. But I still hear it in total quiet room. I tried to record this noise by iPhone but it can't do that.
    Can you do me a favor and check this on your MacBook? Sit in totally quiet room, please. Set the scaled resolution 1680x1050 then bring ear closer to the keyboard and scroll a webpage (which have a lot of graphics) by gesture on the trackpad, start mission control or open notification center. Can you hear then any noise? Please listen carefully, because this is very quiet noise.
    I’ll be very gratefully for your help. I wonder if only my MacBook making this noises or all MacBook Retina late 2013 making this.
    Regards,
    Mateusz

    Jon Bo wrote:
    Hi Mateusz,
    I have the same issue on my new MBP retina 13 late 2013. It's not disturbing because I can hear it in only very quiet room and only if the content of the screen is changing (like scrolling web pages). It reminds me the sound of old 3'5'' hard discs. I first thought it's a hdd, but then realised my mac has only SSD.
    I think it's a noise from the voltage regulators. This is normal for very high speed high-voltage signals.
    But any way, MBP 13 late 2013 is the best laptop I ever saw
    It's just silent and cool like an ipad. I wonder if it has a rotating cooler at all.
    Jon Bo
    Thank you Jon Bo for your response. I agree with you. This noise is something like electronic noise, and it is related to the graphics card.
    The rMBP 13 late 2013 works without any noise other then situations I’ve described above. The noise is so quiet that I can't hear it when e.g. external HDD working in the same room.
    Mateusz

  • Macbook pro retina 13 late 2013 hdmi output error during wakeup

    hi
    i got a pretty annoying error while my macbook pro retina 13 late 2013 is connected to a 2nd screen (i set the 2nd screen as main screen).
    it all seems fine when i put the mac into sleep mode.
    when i wake it up, the mac screen shows the background picture and the 2nd screen (still main screen) which should show the login frame, just shows grey/black points.
    solution so far when you want to wake your mac:
    1.) wake it up
    2.) immediately put it back to sleep
    3.) then promptly wake it up again and get your login frame.
    does anybody know how to fix that bug?
    and btw, i got a second problem:
    im running osx mavericks, and id like to turn off the 2nd desktop while the mac is connected to a 2nd screen.
    unfortunately, this works only if you close your mac and it is connected to power supply.
    my momentary solution is to turn down the brightness to zero: problem, the 2nd desktop is still there and my mouse keeps getting lost on it!
    any solutions for that? like you can choose on windows "projector only"!

    see picture:

  • Macbook pro retina 13 late 2013, usb ports are intermittent with iPhone

    Macbook pro retina 13 late 2013, usb ports are intermittent with iPhone
    when i connect my iPhone 5 to the laptop it keeps connecting and disconnecting, I've had this problem since owning the macbook. change of cables makes no difference neither does which port i use.
    is there any advice anyone could give me?
    many thanks.

    Hello there Jake,
    It sounds like your phone is acting like you are connecting and disconnecing it over and over again even with another USB cable. I would use the troubleshooting in the following article to help you determine what the issue might be.
    iTunes: Resolve USB-related alerts
    See if the cable connection at the device or computer has come loose or unplugged.
    Unplug the cable you're using to connect your iOS device from the USB port on your computer, and then reconnect it. Then unplug it from your iOS device, and reconnect it.
    Remove any third-party battery packs or cases from the device and ensure that the USB cable is connected directly to the port on the device.
    If your Lightning or 30-pin cable is connected to a keyboard, display or USB hub, try plugging it directly into a USB port on the computer instead. 
    Close any virtualization apps (such as Parallels or VMWare).
    These apps may interfere with your computer's ability to communicate over USB if they aren't properly configured, or up to date. If this resolves the issue, contact the developer of the app to see if an update is available.
    Restart your computer.
    Restart your iPhone, iPad, or iPod touch.
    If your iOS device displays the Connect to iTunes screen, reset your device and then restore it.
    If you're using an accessory or third-party cable to connect your device, try using an Apple cable with the device instead.
    Update to the latest version of iTunes if you haven't already.
    Disconnect other USB devices from your computer, except for your keyboard and mouse. Then, reconnect your iOS device. If the issue is resolved, reconnect the other USB devices one at a time. Make sure your iOS device is still recognized by the computer after adding back each device. 
    If one of these steps resolves the issue, but it comes back later, make sure you haven't changed how the device is connected. For example, check to see if you plugged the device into a specific accessory, or used a specific cable that reintroduced the issue.
    Thank you for using Apple Support Communities.
    Take care,
    Sterling

  • Macbook Pro Retina 15 late 2013 won't turn on after being sleep

    I've been having the an issue with my macbook pro retina 15 late 2013 that I bought 2 weeks ago. After a long time of being slept when I try to turn it on, it won't. I press the power button several times and nothing happens, after a long time of trying then it turns on. and I get the message that the machine turn off because of an error but nothing else. I think that's not ok for such an expensive laptop. I had the first version of the macbook pro retina display and never had an issue like this even though I install a lot of apps from app store and third party apps also. I was running parallels with 3 microsoft windows os and never had an issue like this. In this case I haven't installed anything on my new macbook pro besides parallels and the windows seven os. So I don't know if I should take it to the apple store maybe they could change it for another one I don't know.
    Does anyone have the same problem?
    sorry for my english

    Well I have this problem too, do you get a message saying 'an error has occured please press a button to restart' or something similar when you just brosing the internet or watching a movie.
    P.S I use safari and QT.

  • Macbook Pro Retina 13" late 2013 lag

    Hello everybody,
    4 days ago i bought Macbook Pro Retina 13" late 2013. overall i like it as a first time mac user.
    my problem is it feels very slow and unstable and laggy.
    After some testing:
    1024x640 (Larfer Text) - no lag best performance
    1280x800 (Best for Retina) - some lag
    1440x900 (Middle) - Some lag
    1680x1050 (More space) - Lots of lag
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    Here is my post on another Forum. My problem with the UI is now solved :
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    Timmacy wrote:
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    mareyu,
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    Clinton
    P.S. In the time it took to write this, my temps are down and fans are at 3548rpms. I'm sure that once you stop watching videos, your machine will cool down, too.

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