Help Removing Screws

Discussion in 'iPhone Tips, Help and Troubleshooting' started by neediphonehelp, Jan 23, 2010.

  1. macrumors newbie

    Jan 23, 2010
    Replacing LCD and screws are in too tight. Any suggestions to remove the has a blue substance on them to hold them tight. will heat help or anything
  2. macrumors 65816

    Sep 28, 2009
    that blue substance is not something to hold them in tight...that is tiny little pieces of the circuit board which have been ground off when those screws were screwed in.
  3. macrumors demi-god


    Jul 24, 2009
    Lmfao that's the best one I've heard this year!

    The blue stuff is a product called loctite. And it is designed to stop screws, nuts and bolts etc from coming undone due to vibration or shock. It's widly used in the auto industry due to it's ability depending on type used to withstand high tempratures where nyloc nuts would fail.

    OP - make sure you have the right screwdriver for the job. Put as much pressure into the screw as your comfortable with then turn slowly anyiclockwise. If the driver starts to slip the stop and apply a little more pressure into the screw.
  4. macrumors 65816

    Sep 28, 2009
    in the picture if u notice just above the center its blue. thats the circuit board. and he said that stuff on the screws is blue. now when i took apart my hp, my dell, and my friends hp, they had green circuit boards. they also had green on the screws. starting to see a pattern?
  5. macrumors 603


    Feb 2, 2007
    51.50024, -0.12662
    Revision3 has you covered. skip to 14:00 for the iPhone glass replacement steps, or just watch the whole episode. great show!
  6. macrumors 6502a


    Jul 7, 2004
    That's great, but the board and the screws are oriented the opposite of each other. There is no reason there would be blue from the board on the screws. Even if the screws did go into the board, it does not make sense that they would be self tapping. The holes would be pre-drilled and threaded.

    As stated above, it is most likely a thread locking compound. Very commonly used.
  7. macrumors demi-god


    Jul 24, 2009

    Trust me it's loctite. You can buy it to either apply to the thread or a dab on the top.
  8. macrumors regular


    Jul 22, 2002
    Upper Left Corner, USA
    Yep, it's Loctite for sure. Many electronics assembly companies use it to hold bolts in place for mobile equipment such as laptops and phones. Just google for "LOC37614" if you're curious about it. It's medium blue and has a consistency like a thick wax. My old MacBook (which does NOT have blue PCB boards) had this blue gunk all over the bolts.

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