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wont boot

  1. M

    MP All Models mac pro 5.1 tried everthing no boot

    i have a Mac Pro 5.1 it wont boot it turns on with a white screen and a folder iv'e tried everything i can find on the net it came with high sierra installed one day turned it on and thats where im at tried command r it wont go into recovery mode pls someone help i also tried the usb method
  2. S

    HELP! MBP Retina 15" Mid 2012 Black Screen on Boot up.

    Hi all, I am having issues with my MBP. I would say it has been an intermittent issue now for a couple of months and now seems to be getting worse. Initially i would close the laptop and when coming back it had shut itself down quoting it had shut down due to an issue. The battery needed...
    • SeanMR
    • Thread
    • black screen no screen wont boot
    • Replies: 4
    • Forum: MacBook Pro
  3. D

    Electrician Knowledge? Help Repair My MacBook Air A1466? (Detailed Report) - I'm So Close!!!!

    MacBook Air A1466 (820-00165A) I’m so close to fixing it myself, I really want that sense of achievement; I’m fairly technical, but far from an actual electrical engineer! (I have the diagram/schematic to hand) Won’t power on, completely dead, except MagSafe light goes from green to orange...
    • Dailafing
    • Thread
    • 51980a a1466 corrosion macbook air a1466 mother board motherboard schematic smc tps 51980a wont boot
    • Replies: 1
    • Forum: MacBook Air
  4. saltyboat

    Power Mac G4 Cube will not boot any operating system but 10.4.0

    So I recently got the Power Mac G4 Cube sent from hell but for some reason the cube has decided to be the biggest pain in computing history, No matter what I do I cannot get the Cube to boot the installer for any version of MacOS 9 or OS X except Mac OS X 10.4.0 and yes specifically 10.4.0. Let...
    • saltyboat
    • Thread
    • cube wont boot install g4 cube installation error issue mac os x macos 9 wont boot
    • Replies: 1
    • Forum: PowerPC Macs
  5. C

    MP 1,1-5,1 Mac Pro 5,1 single processor suddenly wont start *red light*

    tried looking at different posts about this but got no hope. so my mac just suddenly stopped working when i boot up theres a red light on the tray and the fan just spins super loud and thats about it. I press the diag button to check on the power supply and it seems fine, tried removing all...
    • changareth
    • Thread
    • 5.1 mac pro red light wont boot
    • Replies: 3
    • Forum: Mac Pro
  6. D

    iMac mid 2011 - 27 inch (Lines in in screen)

    Hows it going everybody. My Imac mid 2011 (27 inch) has been experiencing random fan noises/lines shooting directly down the center. Today when I try power on, it goes to the routine the apple loading screen then goes to a white screen - and thats it. I tried a PRAM / SMC reset. It will not...
    • daMFmastermind
    • Thread
    • gpu imac imac mid 2011 lines in screen osx snow lepord wont boot wont start
    • Replies: 1
    • Forum: iMac
  7. Keblar

    Mac mini 2018 wont boot to finish installation process of Catalina

    Please help! So I needed to do a fresh install of Catalina. I booted into recovery mode, erased the whole drive (SSD), then proceeded with the initial installation of Catalina. The mini did a restart and then it shows what I suppose is a Kernel Panic (an image of a power button with different...
  8. O

    iMac Late 2012 27" Black Screen and Trouble Booting

    Hello hello, I currently have a really frustrating problem with my iMac 2012. For about a month now I have been experiencing a unresponsive black screen, it would usually happens after the computer goes to sleep. It won't wake after sleep (completely unresponsive) however I can hear a faint fan...
    • Olzer
    • Thread
    • black screen imac imac 2012 wont boot
    • Replies: 3
    • Forum: iMac
  9. Maxeley

    Corrupted Firmware

    Hi guys. The firmware update on my early 2008 Mac Book Pro failed. The system now turns on and plays the SOS beeps. Instead of running the auto repair the system then reboots and plays the beeps again and so on. I have tried to find firmware recovery disks but none are compatible with this...
    • Maxeley
    • Thread
    • blank screen firmware macbook pro no boot sos beeps wont boot
    • Replies: 6
    • Forum: MacBook Pro
  10. kevinakerberg

    Only LED #1 Turns On Late 2009 27" iMac

    Hi everyone, I received a 27" late 2009 iMac from a friend who said it wouldn't start. Upon taking it apart and investigating, I found that several internal cables were broken and the video card was loose. After replacing these cables and reseating the video card (also had to add RAM) I tried to...
    • kevinakerberg
    • Thread
    • 2009 2009 imac broken imac wont boot
    • Replies: 2
    • Forum: iMac
  11. E

    Why is my macbook doing this?

    Okay, so, I have a 13" 2011 macbook that I got in 2011. About a year and half ago it turned off suddenly and wouldn't reboot, I tried restarting the SMC and all the other stuff they recommend when this happens but nothing worked. Then about a year later I tried plugging it in and it turned on...
    • emilyledm
    • Thread
    • help macbook 13 mystery turns off wont boot wont turn on
    • Replies: 2
    • Forum: MacBook
  12. big-twinkiesgto

    NEED HELP - iPhone is completely dead; tried fixing it on my own

    I did the dumb idea of trying to fix my own iPhone 6 Plus. I believe I messed up the little connections where the screen plug into the phone. I don't know if that's the main problem but my iPhone is now completely dead and won't turn on. I really want to get my pics and data off of it. Are there...
  13. WhateverDewd

    MB Pro 15" - Early 2011 - Shutting down during boot

    So after switching out the original RAM, and replacing the original battery, my macbook booted perfectly, and everything seemed normal. Battery charged, RAM was registered and nothing else bothered me. Now, two days later, it's a whole different story. The machine is having trouble booting up...
    • WhateverDewd
    • Thread
    • battery bootup problem help macbook pro (15-inch early 2011) pram ram smc wont boot
    • Replies: 6
    • Forum: MacBook Pro
  14. soundsystem00

    OSx Glitchy. Do I have a virus?

    I went through facebook and was backup up a lot of photos. ALOT. One of the galleries had 2000 photos. I had an external hard drive hooked up and had Safari set to download each picture straight to the hard drive. After about 100 photos, safari starting moving in slow motion. Then finder...
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