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iPhone 8 Home/Touch ID Sensor Replacement

Escrito Por: Adam O'Camb (e 6 outros contribuidores)
  • Comentários: 40
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  • Execuções: 16

Dificuldade

Moderado

Passos

22

Tempo necessário

55 minutos

Partes

5

Sinalizadores

0

Introdução

The iPhone 8’s home “button” is actually a solid-state sensor, which also includes Touch ID (fingerprint recognition) capability.

Most replacement home buttons won’t work, so check carefully before starting your repair. Your iPhone’s original home button is uniquely paired to the logic board at the factory—and without Apple’s proprietary calibration process, even a genuine replacement home button from another iPhone won’t work. To fix a broken home button, you should install a specially-made, universal-style home button. Note that these replacements only work as a button; Touch ID will not function.

If you are only replacing a broken screen, you can use this guide to carefully remove and transfer your working original home button to a new screen, preserving all functions, including Touch ID.

During this procedure, to avoid accidentally straining or tearing the display cables, it's best to completely detach the display assembly before beginning repairs on the home/Touch ID sensor. But if you are comfortable doing so, you may skip the display assembly section of this guide and go straight to the home/Touch ID sensor section.

  1. Before you begin, discharge your iPhone battery below 25%. A charged lithium-ion battery can catch fire and/or explode if accidentally punctured.

    • Before you begin, discharge your iPhone 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 3.5 mm pentalobe screws on the bottom edge of the iPhone.

    • Opening the iPhone's display will compromise its waterproof seals. Have replacement seals ready before you proceed past this step, or take care to avoid liquid exposure if you reassemble your iPhone without replacing the seals.

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  2. Heating the lower edge of the iPhone will help soften the adhesive securing the display, making it easier to open.

    • Heating the lower edge of the iPhone will help soften the adhesive securing the display, making it easier to open.

    • Use a hairdryer or prepare an iOpener and apply it to the lower edge of the phone for about 90 seconds in order to soften up the adhesive underneath.

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  3. Apply a suction cup to the lower half of the front panel, just above the home button. Be sure the suction cup does not overlap with the home button, as this will prevent a seal from forming between the suction cup and front glass.

    • Apply a suction cup to the lower half of the front panel, just above the home button.

    • Be sure the suction cup does not overlap with the home button, as this will prevent a seal from forming between the suction cup and front glass.

    • 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.

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  4. Pull up on the suction cup with firm, constant pressure to create a slight gap between the front panel and rear case. Insert an opening pick into the gap. The watertight adhesive holding the display in place is very strong; creating this initial gap takes a significant amount of force. If you're having a hard time opening a gap, apply more heat, and gently rock the screen up and down to weaken the adhesive until you create enough of a gap to insert your tool.

    • Pull up on the suction cup with firm, constant pressure to create a slight gap between the front panel and rear case.

    • Insert an opening pick into the gap.

    • The watertight adhesive holding the display in place is very strong; creating this initial gap takes a significant amount of force. If you're having a hard time opening a gap, apply more heat, and gently rock the screen up and down to weaken the adhesive until you create enough of a gap to insert your tool.

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  5. Slide the opening pick up the left edge of the phone starting at the lower edge and moving towards the volume control buttons and silent switch, breaking up the adhesive holding the display in place. Stop near the top left corner of the display. Do not try to pry the top edge of the display away from the rear case, as it is held in place by plastic clips that may break.

    • Slide the opening pick up the left edge of the phone starting at the lower edge and moving towards the volume control buttons and silent switch, breaking up the adhesive holding the display in place.

    • Stop near the top left corner of the display.

    • Do not try to pry the top edge of the display away from the rear case, as it is held in place by plastic clips that may break.

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  6. Re-insert your tool at the lower right corner of the iPhone, and slide it around the corner and up the right side of the phone to separate the adhesive. Don't insert the pick very far, or you may damage the display cables along this side of the iPhone. Insert it only a few millimeters, or about the width of the display bezel. Don't insert the pick very far, or you may damage the display cables along this side of the iPhone. Insert it only a few millimeters, or about the width of the display bezel.

    • Re-insert your tool at the lower right corner of the iPhone, and slide it around the corner and up the right side of the phone to separate the adhesive.

    • Don't insert the pick very far, or you may damage the display cables along this side of the iPhone. Insert it only a few millimeters, or about the width of the display bezel.

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  7. Gently pull up on the suction cup to lift up the bottom edge of the display. Do not raise the display more than 15º or you'll risk straining or tearing the ribbon cables connecting the display.

    • Gently pull up on the suction cup to lift up the bottom edge of the display.

    • Do not raise the display more than 15º or you'll risk straining or tearing the ribbon cables connecting the display.

    • Pull on the small nub on the suction cup to remove it from the front panel.

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  8. Slide an opening pick underneath the display around the top left corner and along the top edge of the phone to loosen the last of the adhesive. Slide an opening pick underneath the display around the top left corner and along the top edge of the phone to loosen the last of the adhesive. Slide an opening pick underneath the display around the top left corner and along the top edge of the phone to loosen the last of the adhesive.

    • Slide an opening pick underneath the display around the top left corner and along the top edge of the phone to loosen the last of the adhesive.

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  10. Slide the display assembly slightly down (away from the top edge of the phone) to disengage the clips holding it to the rear case. Slide the display assembly slightly down (away from the top edge of the phone) to disengage the clips holding it to the rear case.

    • Slide the display assembly slightly down (away from the top edge of the phone) to disengage the clips holding it to the rear case.

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  11. Open the iPhone by swinging the display up from the left side, like the back cover of a book. Don't try to fully separate the display yet, as several fragile ribbon cables still connect it to the iPhone's logic board. Lean the display against something to keep it propped up while you're working on the phone.

    • Open the iPhone by swinging the display up from the left side, like the back cover of a book.

    • Don't try to fully separate the display yet, as several fragile ribbon cables still connect it to the iPhone's logic board.

    • Lean the display against something to keep it propped up while you're working on the phone.

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  12. Remove four Phillips screws securing the lower display cable bracket to the logic board, of the following lengths: Two 1.3 mm screws
    Ferramenta utilizada nesse passo:
    Magnetic Project Mat
    $19.99

    • Remove four Phillips screws securing the lower display cable bracket to the logic board, of the following lengths:

    • Two 1.3 mm screws

    • Two 2.8 mm screws

    • Throughout this guide, keep careful track of your screws so that each one goes back where it came from during reassembly. Installing a screw in the wrong place can cause permanent damage.

    • Remove the bracket.

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  13. Use the point of a spudger to pry the battery connector out of its socket in the logic board. Bend the battery connector cable slightly away from the logic board to prevent it from accidentally making contact with the socket and providing power to the phone during your repair.

    • Use the point of a spudger to pry the battery connector out of its socket in the logic board.

    • Bend the battery connector cable slightly away from the logic board to prevent it from accidentally making contact with the socket and providing power to the phone during your repair.

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  14. Use the point of a spudger to pry the lower display connector out of its socket. To re-attach press connectors like this one, press down on one side until it clicks into place, then repeat on the other side. Do not press down on the middle. If the connector is even slightly misaligned, the connector can bend, causing permanent damage.

    • Use the point of a spudger to pry the lower display connector out of its socket.

    • To re-attach press connectors like this one, press down on one side until it clicks into place, then repeat on the other side. Do not press down on the middle. If the connector is even slightly misaligned, the connector can bend, causing permanent damage.

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  15. Use the point of a spudger to disconnect the second lower display cable. Use the point of a spudger to disconnect the second lower display cable.

    • Use the point of a spudger to disconnect the second lower display cable.

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  16. Remove the three 1.3 mm Phillips screws securing the bracket over the front panel sensor assembly connector. Remove the bracket.

    • Remove the three 1.3 mm Phillips screws securing the bracket over the front panel sensor assembly connector.

    • Remove the bracket.

    Editar

  17. Use the point of a spudger to disconnect the front panel sensor assembly connector. Use the point of a spudger to disconnect the front panel sensor assembly connector.

    • Use the point of a spudger to disconnect the front panel sensor assembly connector.

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  18. Remove the display assembly.
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  19. Remove the four Y000 screws securing the bracket over the home/Touch ID sensor: One 1.2 mm screw

    • Remove the four Y000 screws securing the bracket over the home/Touch ID sensor:

    • One 1.2 mm screw

    • Three 1.3 mm screws

    • Remove the bracket.

    • During reassembly, be careful not to overtighten these screws, or your home button may not work.

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  20. Use an opening tool to pry under the left edge of the home button cable connector to disconnect it from its socket. If the entire connector begins to flip up without separating, press down on the cable at the top edge of the connector with the flat end of your spudger, while simultaneously prying up the left edge of the connector. Be very careful not to damage the cable or connector, or you will permanently disable the sensor. If the entire connector begins to flip up without separating, press down on the cable at the top edge of the connector with the flat end of your spudger, while simultaneously prying up the left edge of the connector. Be very careful not to damage the cable or connector, or you will permanently disable the sensor.

    • Use an opening tool to pry under the left edge of the home button cable connector to disconnect it from its socket.

    • If the entire connector begins to flip up without separating, press down on the cable at the top edge of the connector with the flat end of your spudger, while simultaneously prying up the left edge of the connector. Be very careful not to damage the cable or connector, or you will permanently disable the sensor.

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  21. Heating the area around the home/Touch ID sensor will help soften the adhesive holding its delicate cable in place, making it easier to remove safely.

    • Heating the area around the home/Touch ID sensor will help soften the adhesive holding its delicate cable in place, making it easier to remove safely.

    • Flip the display assembly over. Use a hairdryer or prepare an iOpener and apply it to the lower edge of the display for about 90 seconds in order to soften up the adhesive underneath.

    • Don't overheat the display. It should be slightly too hot to touch comfortably.

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  22. Use an opening pick to gently separate the adhesive holding the home/Touch ID sensor cable to the back side of the display panel. Use an opening pick to gently separate the adhesive holding the home/Touch ID sensor cable to the back side of the display panel. Use an opening pick to gently separate the adhesive holding the home/Touch ID sensor cable to the back side of the display panel.

    • Use an opening pick to gently separate the adhesive holding the home/Touch ID sensor cable to the back side of the display panel.

    Editar

  23. Remove the home/Touch ID sensor assembly by lifting it through the front side of the display.

    • Remove the home/Touch ID sensor assembly by lifting it through the front side of the display.

    • To reinstall, first feed the cable through the hole in the front of the display as shown.

    • Your replacement part may come with extra Y000 screws already installed near the Home Button. Remove the unnecessary screws so that you can reinstall the home button bracket.

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Conclusão

Compare your new replacement part to the original part—you may need to transfer remaining components or remove adhesive backings from the new part before installing.

To reassemble your device, follow the above steps in reverse order.

Take your e-waste to an R2 or e-Stewards certified recycler.

Repair didn’t go as planned? Try some basic troubleshooting, or search our Answers forum for help.

16 outras pessoas concluíram este guia.

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Adam O'Camb

Membro desde: 11/04/2015

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5 comentários

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Very good guide! Thank you for NOT have made a shaky video, which is popular nowadays. This kind of information is very much better presented with text and a series of hi-res pictures!

Now I know where to order stuff when I need it!

All the best,

Dr. Robert Svensson

term - Responder

Great Fix It Guide Adam…..I would only add one suggestion to your instructions. To keep all the iPhone screws organized & separated by size I use a Sharpie marker to color code the screw to the bracket. It worked great! Thanks again!

Walter Smith - Responder

my home button is really solid and i cant figure out why, it refuses to activate, and when i press the home button to recover it wont work, please help, ive replace it 6 times and ive checked every step properly and still nothing please help

tycleggnmum - Responder

I have replaced the screen and it works, but with installing a new home button , the home button does not function!

Daryoush Namiranian - Responder

I just completed this guide and did everything by the instructions ( I believe) and the new home button still isn’t working : ( It was a cheap attempt thankfully, but I’m not sure where to go from here. I don’t know iPhones super well. If anybody else has seen this, let me know. Does it need drivers or something? Fresh iOS install? I’m not sure.

Joshua Batchelor - Responder

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