Difficulty

Difficult

Steps

47

Time Required

                          2 - 3 hours

Sections

8

  • Pentalobe Screws
  • 1 step
  • Opening Procedure
  • 11 steps
  • Battery Connector
  • 4 steps
  • Front Panel Assembly
  • 6 steps
  • Rear Camera
  • 5 steps
  • SIM Tray
  • 2 steps
  • Logic Board
  • 15 steps
  • How to fix iTunes error 9 in an Apple iPhone 6s
  • 3 steps

Flags

1

Member-Contributed Guide

An awesome member of our community made this guide. It is not managed by iFixit staff.

  • BackiPhone 6s

  • Full Screen

  • Options

  • History

  • Save to Favorites

  • Download PDF

  • Edit

  • Translate

  • Get Shareable Link

  • Embed This Guide

  • Notify Me of Changes

  • Stop Notifications

Introduction

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.

What you need

Video Overview

Step 1

              Pentalobe Screws
  • 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.

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.

1024

Step 2

              Opening Procedure
  • 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.

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.

Step 3

  • 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.

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.

Step 4

  • 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.

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.

Step 5

  • 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.

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.

Step 6

  • Twist the spudger to widen the gap between the front panel assembly and the rest of the phone.

Twist the spudger to widen the gap between the front panel assembly and the rest of the phone.

Step 7

  • 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.

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.

Step 8

  • 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.

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.

Step 9

  • Slide the spudger up the right side to continue separating the adhesive and popping the display clips free from the iPhone.

Slide the spudger up the right side to continue separating the adhesive and popping the display clips free from the iPhone.

Step 10

  • 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.

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.

Step 11

  • Pull up on the nub on the top side of the suction cup to remove it from the front panel.

Pull up on the nub on the top side of the suction cup to remove it from the front panel.

Step 12

  • 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.

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.

Step 13

              Battery Connector
  • 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.

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.

Step 14

  • Remove the battery connector bracket from the iPhone.

Remove the battery connector bracket from the iPhone.

Step 15

  • Use the point of a spudger to disconnect the battery connector by prying it straight up from the logic board.

Use the point of a spudger to disconnect the battery connector by prying it straight up from the logic board.

Step 16

  • 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.

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.

Step 17

              Front Panel Assembly
  • Remove the following four Phillips screws securing the display cable bracket:
  • Three 1.2 mm screws
  • One 2.8 mm screw

Remove the following four Phillips screws securing the display cable bracket:

Three 1.2 mm screws

One 2.8 mm screw

Step 18

  • Remove the display cable bracket.

Remove the display cable bracket.

Step 19

  • 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.

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.

Step 20

  • 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.

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.

Step 21

  • 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.

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.

Step 22

  • Remove the display assembly.
  • During reassembly, pause here if you wish to replace the adhesive around the edges of the display.

Remove the display assembly.

During reassembly, pause here if you wish to replace the adhesive around the edges of the display.

Step 23

              Rear Camera
  • Use the flat end of a spudger to disconnect the rear camera from its socket on the logic board.

Use the flat end of a spudger to disconnect the rear camera from its socket on the logic board.

Step 24

  • Remove the following two Phillips screws over the rear camera bracket:
  • One 1.6 mm screw
  • One 2.0 mm screw

Remove the following two Phillips screws over the rear camera bracket:

One 1.6 mm screw

One 2.0 mm screw

Step 25

  • Remove the camera bracket.

Remove the camera bracket.

Step 26

  • 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.

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.

Step 27

  • Remove the camera.

Remove the camera.

Step 28

              SIM Tray
  • 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.

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.

Step 29

  • 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.

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.

Step 30

              Logic Board
  • Remove the two 2.3 mm Phillips screws securing the upper component cable connector bracket.

Remove the two 2.3 mm Phillips screws securing the upper component cable connector bracket.

Step 31

  • Remove the upper component cable connector bracket.

Remove the upper component cable connector bracket.

Step 32

  • 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

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

Step 33

  • Remove the top left Wi-Fi antenna.

Remove the top left Wi-Fi antenna.

Step 34

  • Use the flat end of a spudger to disconnect the audio control cable from its socket on the logic board.

Use the flat end of a spudger to disconnect the audio control cable from its socket on the logic board.

Step 35

  • Use the pointed tip of a spudger to disconnect the antenna cable from its socket on the upper right corner of the logic board.

Use the pointed tip of a spudger to disconnect the antenna cable from its socket on the upper right corner of the logic board.

Step 36

  • Use the pointed tip of a spudger to disconnect the antenna cable from its socket on the lower left corner of the logic board.

Use the pointed tip of a spudger to disconnect the antenna cable from its socket on the lower left corner of the logic board.

Step 37

  • 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.

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.

Step 38

  • Gently pull up on the antenna cable to de-route it from the two clips on the right side of the logic board.

Gently pull up on the antenna cable to de-route it from the two clips on the right side of the logic board.

Step 39

  • Remove the 1.3 mm Phillips screw securing the NFC bracket to the logic board.

Remove the 1.3 mm Phillips screw securing the NFC bracket to the logic board.

Step 40

  • Remove the NFC bracket.

Remove the NFC bracket.

Step 41

  • 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

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

Step 42

  • Remove the plastic clip.

Remove the plastic clip.

Step 43

  • 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

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

Step 44

  • 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.

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.

Step 45

              How to fix iTunes error 9 in an Apple iPhone 6s
  • Remove the protective cover from the logic board.
  • Remove the black sticker from the logic board.

Remove the protective cover from the logic board.

Remove the black sticker from the logic board.

Step 46

  • 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.

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.

Step 47

  • 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.

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.

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

Cancel: I did not complete this guide.

                                                                                      9 other people completed this guide.

Author

                                      with 3 other contributors 


                    Alex Sander

Member since: 02/28/2017

37,240 Reputation

                                      202 Guides authored                  



                       Badges:
                       28







                                                        +25 more badges

Marcel - May 12, 2019

Reply

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?