SSD won't boot internally but works fine when boot externally via USB

Discussion in 'MacBook Pro' started by TengHau, Jul 17, 2017.

  1. TengHau macrumors newbie

    TengHau

    Joined:
    Jul 17, 2017
    #1
    Hi everyone,

    I have just bought a SSD (Samsung 850 Evo) . However after installation, my Macbook just simply couldn't boot. I have tried a few ways to try to solve this but have failed in doing so. However, my SSD seems to be working fine when i put it in enclosure and I can boot it externally via USB but it doesn't work when I boot it internally.

    Here's what happened:

    1. I first formatted the drive and used carbon copy to clone my HDD into SSD via an enclosure (USB)
    2. I then took out my HDD and installed my SSD into my Macbook
    3. I power up my laptop and it booted extremely slow.
    4. My MacBook Pro was running at an extremely slow speed after that (it freeze at times and took a long time to run any software and programme)

    I then took out the SSD and put my HDD back. Everything was back to normal.
    I then formatted/erase my drive again using the enclosure, this time i decide to run a clean Mac OS Sierra installation. Here's the step:

    1. I downloaded Sierra on app store and install it in my SSD (externally)
    2. I then booted my Macbook Pro using the SSD (externally) and it works fine
    3. I then installed it into my Macbook Pro and boot it up with my SSD (this time internally)
    4. But all I got is a "No entry/Prohibited" sign.

    It's pretty frustrating. The SSD works fine whenever it's in the enclosure but not when I install it into my Macbook Pro. Can anyone here provide any advice or tell me what's the problem? My Macbook Pro is a 13" Early 2011 model and I am running on a Maverick 10.9.5
     
  2. Gjwilly macrumors 68030

    Joined:
    May 1, 2011
    Location:
    SF Bay Area
  3. Audit13 macrumors 65816

    Audit13

    Joined:
    Apr 19, 2017
    Location:
    Toronto, Ontario, Canada
    #3
    The 850 EVO is a good match for your Macbook as I'm using one in a 2011 13" MBP too.

    Change the sata cable as mentioned. I did this on a 2010 13" and 2009 15" using generic cables from Amazon.
     
  4. TengHau thread starter macrumors newbie

    TengHau

    Joined:
    Jul 17, 2017
    #4
    I was thinking that it could be the SATA cable problem as well. But it works fine and everything was back to normal when I installed my old HDD back to my Macbook Pro.

    Does that still indicate a Hard Disk Cable failure?
     
  5. Audit13 macrumors 65816

    Audit13

    Joined:
    Apr 19, 2017
    Location:
    Toronto, Ontario, Canada
    #5
    Could be a cable fault and perhaps it arises with an ssd? Is the Samsung running the latest firmware?
     
  6. TengHau thread starter macrumors newbie

    TengHau

    Joined:
    Jul 17, 2017
    #6
    How can I check if it's on the latest firmware?
     
  7. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #7
    Even if you are not on the latest firmware, it would not cause this issue. Sounds like you have a bad internal cable. It is common for this to manifest with an SSD and not a HHD due to the higher bandwidth moved with an SSD.
     
  8. TengHau thread starter macrumors newbie

    TengHau

    Joined:
    Jul 17, 2017
    #8
    So you would suggest to change the hard drive cable as well?
     
  9. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #9
    Yep... exactly.
     
  10. TengHau thread starter macrumors newbie

    TengHau

    Joined:
    Jul 17, 2017
    #10
    Let me try that up and update my progress after that.
     
  11. Resist macrumors 68030

    Joined:
    Jan 15, 2008
    #11
    I'm curious about the solution for this myself.
     

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