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Introducción

Use this guide to fix a faulty logic board in your iPhone 6s. Repairing a logic board may require micro-soldering.

A faulty logic board can also be replaced using the steps in this guide. It's important to note that each iPhone's logic board and Touch ID fingerprint sensor are paired at the factory, so replacing the logic board will disable Touch ID unless you also install a replacement home button that has been properly paired to your new logic board.

You can also use this guide for reference to replace the logic board EMI shield stickers.

See this iPhone 6s iTunes Hardware Restoration guide to help fix your phone’s logic board.

Resumen del Video

Fix iPhone 6s iTunes Error

  1. How to fix iTunes error 9 in an Apple iPhone 6s, Pentalobe Screws: paso 1, imagen 1 de 1
    • Before disassembling your iPhone, discharge the battery below 25%. A charged lithium-ion battery can catch fire and/or explode if accidentally punctured.

    • Power off your iPhone before beginning disassembly.

    • Remove the two 3.4 mm P2 Pentalobe screws on the bottom edge of the iPhone, next to the Lightning connector.

  2. How to fix iTunes error 9 in an Apple iPhone 6s, Opening Procedure: paso 2, imagen 1 de 1
    • Optionally, apply mild heat to the lower edge of the iPhone using an iOpener or hair dryer for about a minute.

    • Heat softens the adhesive securing the display, making it easier to open.

  3. How to fix iTunes error 9 in an Apple iPhone 6s: paso 3, imagen 1 de 1
    • Opening the display on the 6s separates a thin strip of adhesive around the perimeter of the display. If you prefer to replace the adhesive, have a set of new adhesive strips ready before you continue. It's possible to complete the repair without replacing the adhesive, and you probably won't notice any difference in functionality.

    • Apply a suction cup to the lower left corner of the display assembly.

    • Take care not to place the suction cup over the home button.

    • If your display is badly cracked, covering it with a layer of clear packing tape may allow the suction cup to adhere. Alternatively, very strong tape may be used instead of the suction cup. If all else fails, you can superglue the suction cup to the broken screen.

  4. How to fix iTunes error 9 in an Apple iPhone 6s: paso 4, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 4, imagen 2 de 2
    • Pull up on the suction cup with firm, constant pressure to create a slight gap between the front panel and rear case.

    • Take your time and apply firm, constant force. The display assembly is a much tighter fit than most devices and is held down with adhesive.

    • Pulling too hard may damage the display assembly. Apply just enough pressure to create a small gap between the display assembly and the rear case.

    • If you have any trouble, heat the front of the iPhone using an iOpener, hair dryer, or heat gun until it's slightly too hot to touch. This will help soften the adhesive securing the edges of the display.

  5. How to fix iTunes error 9 in an Apple iPhone 6s: paso 5, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 5, imagen 2 de 2
    • There is a notch on the underside of the display, just above the headphone jack. This is the safest place to begin prying the phone open.

    • Place the flat edge of a spudger into the gap between the screen and rear case, directly above the headphone jack.

  6. How to fix iTunes error 9 in an Apple iPhone 6s: paso 6, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 6, imagen 2 de 2
    • Twist the spudger to widen the gap between the front panel assembly and the rest of the phone.

  7. How to fix iTunes error 9 in an Apple iPhone 6s: paso 7, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 7, imagen 2 de 2
    • Insert the flat end of the spudger on the left side of the phone, between the display assembly and rear case.

    • Slide the spudger up the side of the phone to separate the adhesive and pop the clips free.

  8. How to fix iTunes error 9 in an Apple iPhone 6s: paso 8, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 8, imagen 2 de 2
    • Remove the spudger and reinsert it on the bottom edge, where you pried the phone open.

    • Slide the spudger to the right, along the bottom edge of the phone.

  9. How to fix iTunes error 9 in an Apple iPhone 6s: paso 9, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 9, imagen 2 de 2
    • Slide the spudger up the right side to continue separating the adhesive and popping the display clips free from the iPhone.

  10. How to fix iTunes error 9 in an Apple iPhone 6s: paso 10, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 10, imagen 2 de 2
    • Use the suction cup to open the display, breaking the last of the adhesive.

    • Don't open the display more than 90º, as it is still connected at the top by three cables that may break if stretched.

  11. How to fix iTunes error 9 in an Apple iPhone 6s: paso 11, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 11, imagen 2 de 2
    • Pull up on the nub on the top side of the suction cup to remove it from the front panel.

  12. How to fix iTunes error 9 in an Apple iPhone 6s: paso 12, imagen 1 de 3 How to fix iTunes error 9 in an Apple iPhone 6s: paso 12, imagen 2 de 3 How to fix iTunes error 9 in an Apple iPhone 6s: paso 12, imagen 3 de 3
    • Gently grasp the display assembly and lift it up to open the phone, using the clips at the top of the front panel as a hinge.

    • Open the display to about a 90º angle, and lean it against something to keep it propped up while you're working on the phone.

    • Add a rubber band to keep the display securely in place while you work. This prevents undue strain on the display cables.

    • In a pinch, you can use an unopened canned beverage to hold the display.

    • Remove two Phillips screws securing the battery connector bracket, of the following lengths:

    • One 2.9 mm screw

    • One 2.2 mm screw

    • Throughout this repair, keep track of each screw and make sure it goes back exactly where it came from to avoid damaging your iPhone.

  13. How to fix iTunes error 9 in an Apple iPhone 6s: paso 14, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 14, imagen 2 de 2
    • Remove the battery connector bracket from the iPhone.

  14. How to fix iTunes error 9 in an Apple iPhone 6s: paso 15, imagen 1 de 3 How to fix iTunes error 9 in an Apple iPhone 6s: paso 15, imagen 2 de 3 How to fix iTunes error 9 in an Apple iPhone 6s: paso 15, imagen 3 de 3
    • Use the point of a spudger to disconnect the battery connector by prying it straight up from the logic board.

  15. How to fix iTunes error 9 in an Apple iPhone 6s: paso 16, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 16, imagen 2 de 2
    • Push the battery connector away from the logic board until it stays separated from its socket, so as to avoid any accidental connection to the battery while you work.

  16. How to fix iTunes error 9 in an Apple iPhone 6s, Front Panel Assembly: paso 17, imagen 1 de 1
    • Remove the following four Phillips screws securing the display cable bracket:

    • Three 1.2 mm screws

    • One 2.8 mm screw

  17. How to fix iTunes error 9 in an Apple iPhone 6s: paso 18, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 18, imagen 2 de 2
    • Remove the display cable bracket.

  18. How to fix iTunes error 9 in an Apple iPhone 6s: paso 19, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 19, imagen 2 de 2
    • Use a spudger or a clean fingernail to disconnect the front camera flex cable by prying it straight up from its socket on the logic board.

  19. How to fix iTunes error 9 in an Apple iPhone 6s: paso 20, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 20, imagen 2 de 2
    • Disconnect the digitizer cable by prying it straight up from its socket on the logic board.

    • When reconnecting the digitizer cable, do not press the center of the connector. Press one end of the connector, then press the opposite end. Pressing in the center of the connector can bend the component and cause digitizer damage.

  20. How to fix iTunes error 9 in an Apple iPhone 6s: paso 21, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 21, imagen 2 de 2
    • Make sure the battery is disconnected before you disconnect or reconnect the cable in this step.

    • Disconnect the display cable by prying it straight up from its socket on the logic board.

  21. How to fix iTunes error 9 in an Apple iPhone 6s: paso 22, imagen 1 de 1
  22. How to fix iTunes error 9 in an Apple iPhone 6s, Rear Camera: paso 23, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s, Rear Camera: paso 23, imagen 2 de 2
    • Use the flat end of a spudger to disconnect the rear camera from its socket on the logic board.

  23. How to fix iTunes error 9 in an Apple iPhone 6s: paso 24, imagen 1 de 1
    • Remove the following two Phillips screws over the rear camera bracket:

    • One 1.6 mm screw

    • One 2.0 mm screw

  24. How to fix iTunes error 9 in an Apple iPhone 6s: paso 25, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 25, imagen 2 de 2
    • Remove the camera bracket.

  25. How to fix iTunes error 9 in an Apple iPhone 6s: paso 26, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 26, imagen 2 de 2
    • Insert a spudger to the side of the camera, between the rear case and the camera module.

    • Gently pry up on the camera to nudge it out from its housing.

  26. How to fix iTunes error 9 in an Apple iPhone 6s: paso 27, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 27, imagen 2 de 2
    • Remove the camera.

  27. How to fix iTunes error 9 in an Apple iPhone 6s, SIM Tray: paso 28, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s, SIM Tray: paso 28, imagen 2 de 2
    • Insert a SIM card eject tool or a paperclip into the small hole in the SIM card tray.

    • Press to eject the tray.

    • This may require a significant amount of force.

  28. How to fix iTunes error 9 in an Apple iPhone 6s: paso 29, imagen 1 de 1
    • Remove the SIM Card tray assembly from the iPhone.

    • When reinserting the SIM card, ensure that it is in the proper orientation relative to the tray.

  29. How to fix iTunes error 9 in an Apple iPhone 6s, Logic Board: paso 30, imagen 1 de 1
    • Remove the two 2.3 mm Phillips screws securing the upper component cable connector bracket.

  30. How to fix iTunes error 9 in an Apple iPhone 6s: paso 31, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 31, imagen 2 de 2
    • Remove the upper component cable connector bracket.

  31. How to fix iTunes error 9 in an Apple iPhone 6s: paso 32, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 32, imagen 2 de 2
    • Remove the following five Phillips screws securing the top left Wi-Fi antenna:

    • Two 1.5mm screws

    • One 2.3 mm screw

    • One 1.9 mm screw

    • One 2.0 mm screw

  32. How to fix iTunes error 9 in an Apple iPhone 6s: paso 33, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 33, imagen 2 de 2
    • Remove the top left Wi-Fi antenna.

  33. How to fix iTunes error 9 in an Apple iPhone 6s: paso 34, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 34, imagen 2 de 2
    • Use the flat end of a spudger to disconnect the audio control cable from its socket on the logic board.

  34. How to fix iTunes error 9 in an Apple iPhone 6s: paso 35, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 35, imagen 2 de 2
    • Use the pointed tip of a spudger to disconnect the antenna cable from its socket on the upper right corner of the logic board.

  35. How to fix iTunes error 9 in an Apple iPhone 6s: paso 36, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 36, imagen 2 de 2
    • Use the pointed tip of a spudger to disconnect the antenna cable from its socket on the lower left corner of the logic board.

  36. How to fix iTunes error 9 in an Apple iPhone 6s: paso 37, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 37, imagen 2 de 2
    • Insert the flat end of a spudger underneath the Lightning connector ribbon cable. Lift up to disconnect it from its socket on the logic board.

  37. How to fix iTunes error 9 in an Apple iPhone 6s: paso 38, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 38, imagen 2 de 2
    • Gently pull up on the antenna cable to de-route it from the two clips on the right side of the logic board.

  38. How to fix iTunes error 9 in an Apple iPhone 6s: paso 39, imagen 1 de 1
    • Remove the 1.3 mm Phillips screw securing the NFC bracket to the logic board.

  39. How to fix iTunes error 9 in an Apple iPhone 6s: paso 40, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 40, imagen 2 de 2
    • Remove the NFC bracket.

  40. How to fix iTunes error 9 in an Apple iPhone 6s: paso 41, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 41, imagen 2 de 2
    • Remove the following two Phillips screws:

    • One 2.5 mm screw at the top of the logic board

    • One 1.4 mm screw set into the upper edge of the rear case

  41. How to fix iTunes error 9 in an Apple iPhone 6s: paso 42, imagen 1 de 2 How to fix iTunes error 9 in an Apple iPhone 6s: paso 42, imagen 2 de 2
    • Remove the plastic clip.

  42. How to fix iTunes error 9 in an Apple iPhone 6s: paso 43, imagen 1 de 1
    • Remove the final three screws securing the logic board to the rear case:

    • One 1.9 mm Phillips screw

    • One 2.5 mm hex nut

    • One 1.8 mm Phillips screw

  43. How to fix iTunes error 9 in an Apple iPhone 6s: paso 44, imagen 1 de 3 How to fix iTunes error 9 in an Apple iPhone 6s: paso 44, imagen 2 de 3 How to fix iTunes error 9 in an Apple iPhone 6s: paso 44, imagen 3 de 3
    • Insert an opening pick below the lower edge of the logic board, between the board and the loudspeaker.

    • Use the opening pick to gently lift the logic board out of its housing.

    • Remove the logic board.

  44. How to fix iTunes error 9 in an Apple iPhone 6s, How to fix iTunes error 9 in an Apple iPhone 6s: paso 45, imagen 1 de 3 How to fix iTunes error 9 in an Apple iPhone 6s, How to fix iTunes error 9 in an Apple iPhone 6s: paso 45, imagen 2 de 3 How to fix iTunes error 9 in an Apple iPhone 6s, How to fix iTunes error 9 in an Apple iPhone 6s: paso 45, imagen 3 de 3
    • Remove the protective cover from the logic board.

    • Remove the black sticker from the logic board.

  45. How to fix iTunes error 9 in an Apple iPhone 6s: paso 46, imagen 1 de 3 How to fix iTunes error 9 in an Apple iPhone 6s: paso 46, imagen 2 de 3 How to fix iTunes error 9 in an Apple iPhone 6s: paso 46, imagen 3 de 3
    • Place a heat shield over the other parts of the motherboard to avoid overheating.

    • Heat the affected area with a heat gun to reflow the solder.

    • Reflowing heats up all the soldering joints in an area so they become liquid enough to reinforce the bonds. This allows electricity to flow through the bond without unexpected resistance.

  46. How to fix iTunes error 9 in an Apple iPhone 6s: paso 47, imagen 1 de 1
    • Re-solder a new tristar chip onto the logic board.

    • Apply a small amount of isopropyl alcohol to the areas where flux was applied.

    • The isopropyl alcohol will clean any remaining flux that was not burned off during the heating process.

Conclusión

To reassemble your device, follow these instructions in reverse order.

9 personas más completaron esta guía.

Alex Sander

Miembro Desde 28/02/17

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Un comentario

Does anybody have more detailed instructions? Maybe in written form? I don’t know where to find the board and which tools I need. And did I understand right - he’s boiling the board, so he’s heating it up?

Marcel - Contestar

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