MacBook Pro won't start - runs in a loop

Hi guys,.

After a few days trying to figure this painful problem, I am at the end of my home and hope someone can help.

I have a 2011 MacBook Pro, which has recently started having problems to start. During a game session (SIMMS), he all of a sudden to stop and refused to restart, and since then I have been unable to use it at all. The MBP has a new installation of El Capitan on it, but it has been working well for the past two weeks since the installation.

I tried the safe mode, mode of recovery etc, but it would not boot in any of these either. Finally, I put it target mode and reloaded El Capitan of another 'companion' MacBook Pro. This process went smoothly.

After loading it, I started from the MacBook to make sure that the operating system works OK, and it was 'companion '!

I restarted the "Companion" MBP and ejected the defective MBP and tried to restart it normally. No go, would not even boot even with the new OS.

I tried a number of things so he can begin as a result of this new facility, but all that happens is that he'll do the Apple Logo, try to start, stop, and then go around in circles.

Finally you will stop on the gray screen and the fans will start and keep running.

I'm at the end of my knowledge, so any advice would be welcome!

Thank you

Have you tried SMC and NVRAM resets?

Tags: Notebooks

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    com Apple.KEC.corecrypto 1.0

    Model: MacBookPro10, 1, MBP101.00EE.B0A of BootROM, 4 processors, Intel Core i7, 2.3 GHz, 8 GB, MSC 2.3f36

    Graphics card: Intel Graphics HD 4000, 4000, Intel HD graphics card integrated

    Graphics card: NVIDIA GeForce GT 650 M, NVIDIA GeForce GT 650 M, PCIe, 1024 MB

    Memory module: DIMM0/0 BANK, 4 GB DDR3, 1600 MHz, 0x80AD, 0x484D54333531533642465238432D50422020

    Memory module: DIMM0/1 BANK, 4 GB DDR3, 1600 MHz, 0x80AD, 0x484D54333531533642465238432D50422020

    Airport: spairport_wireless_card_type_airport_extreme (0x14E4, 0xEF), Broadcom BCM43xx 1.0 (7.21.94.136.1a1)

    Bluetooth: Version 4.4.3f4 16616, 3 services, 27 aircraft, 1 incoming serial ports

    Network service: Wi - Fi, AirPort, en0

    Serial ATA Device: APPLE SM256E, 251 GB SSD

    USB device: USB 2.0 Bus

    USB device: Hub

    USB device: FaceTime HD camera (built-in)

    USB device: USB 2.0 Bus

    USB device: Hub

    USB device: Hub

    USB device: Apple keyboard / Trackpad

    USB device: Hub BRCM20702

    USB Device: USB Bluetooth host controller

    USB device: USB 3.0 Bus

    Bus crush: MacBook Pro, Apple Inc., 23.4

    Anyone have any idea what my problem is?

    Thanks in advance

    Make an appointment with an Apple store genius bar: your MBP GPU problems and falls into this category:

    https://www.Apple.com/support/MacBookPro-videoissues/

    Ciao.

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