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Введение

Use this guide to remove or replace a faulty logic board in your iPhone 7.

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.

Видео обзор

  1. iPhone 7 Logic Board Replacement, Pentalobe Screws: step 1, image 1 of 1
    • 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 3.4 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.

  2. iPhone 7 Logic Board Replacement, iPhone 7 Opening Procedure: step 2, image 1 of 1
    • 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 iPhone for about a minute in order to soften up the adhesive underneath.

  3. iPhone 7 Logic Board Replacement: step 3, image 1 of 2 iPhone 7 Logic Board Replacement: step 3, image 2 of 2
    • Attach a suction cup to the lower half of the display assembly, 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.

  4. iPhone 7 Logic Board Replacement: step 4, image 1 of 3 iPhone 7 Logic Board Replacement: step 4, image 2 of 3 iPhone 7 Logic Board Replacement: step 4, image 3 of 3
    • Pull up on the suction cup to create a small gap between the display assembly and the rear case.

    • Insert the flat end of a spudger into the gap.

    • The watertight adhesive holding the display in place is very strong, and creating this initial gap takes a significant amount of force. If you're having a hard time opening a gap, rock the screen up and down to weaken the adhesive until you can fit a spudger inside.

  5. iPhone 7 Logic Board Replacement: step 5, image 1 of 3 iPhone 7 Logic Board Replacement: step 5, image 2 of 3 iPhone 7 Logic Board Replacement: step 5, image 3 of 3
    • Slide the spudger to the left along the lower edge of the iPhone.

    • Twist the spudger to widen the gap between the display and rear case.

  6. iPhone 7 Logic Board Replacement: step 6, image 1 of 3 iPhone 7 Logic Board Replacement: step 6, image 2 of 3 iPhone 7 Logic Board Replacement: step 6, image 3 of 3
    • Slide the spudger up the left side of the iPhone, starting at the lower edge and moving towards the volume control buttons and silent switch.

    • Do not pry along the top edge of the phone, you risk damaging the plastic clips securing the display.

  7. iPhone 7 Logic Board Replacement: step 7, image 1 of 3 iPhone 7 Logic Board Replacement: step 7, image 2 of 3 iPhone 7 Logic Board Replacement: step 7, image 3 of 3
    • Insert the flat edge of a spudger into the bottom right corner of the device.

    • Twist the spudger to widen the gap between the display assembly and the rear case.

    • Slide the flat end of the spudger up the right side of the phone to break up the adhesive holding the display in place.

    • Do not insert the spudger further than the adhesive to avoid damaging delicate ribbon cables along the right edge.

  8. iPhone 7 Logic Board Replacement: step 8, image 1 of 2 iPhone 7 Logic Board Replacement: step 8, image 2 of 2
    • Pull up on the suction cup to lift up the display and open the iPhone.

    • Do not raise the display more than 10º as there are ribbon cables along the right edge of the device connecting the display to the logic board.

  9. iPhone 7 Logic Board Replacement: step 9, image 1 of 1
    • Pull up on the small nub on the suction cup to remove it from the front panel.

  10. iPhone 7 Logic Board Replacement: step 10, image 1 of 2 iPhone 7 Logic Board Replacement: step 10, image 2 of 2
    • Slide an opening pick along the top edge of the iPhone, between the rear case and front panel, to break up the remaining adhesive holding the screen in place.

    • Be careful not to damage the plastic clips on the top edge of the phone.

  11. iPhone 7 Logic Board Replacement: step 11, image 1 of 3 iPhone 7 Logic Board Replacement: step 11, image 2 of 3 iPhone 7 Logic Board Replacement: step 11, image 3 of 3
    • Pull the display assembly slightly away from the top edge of the phone to disengage the clips holding it to the rear case.

    • 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.

  12. iPhone 7 Logic Board Replacement: step 13, image 1 of 1
    • Remove the lower connector bracket.

  13. iPhone 7 Logic Board Replacement: step 14, image 1 of 3 iPhone 7 Logic Board Replacement: step 14, image 2 of 3 iPhone 7 Logic Board Replacement: step 14, image 3 of 3
    • Use the point of a spudger to lift the battery connector out of its socket on the logic board.

    • Bend the connector cable up slightly to prevent it from making contact with the socket and providing power to the phone.

  14. iPhone 7 Logic Board Replacement, Display Assembly: step 15, image 1 of 3 iPhone 7 Logic Board Replacement, Display Assembly: step 15, image 2 of 3 iPhone 7 Logic Board Replacement, Display Assembly: step 15, image 3 of 3
    • Make sure the battery is disconnected before you disconnect or reconnect the cables in this step.

    • Use a spudger or a fingernail to disconnect the two lower display connectors by prying them straight up from their sockets on the logic board.

    • To reconnect these cables, press down on one end until it clicks into place, then repeat on the opposite end. Do not press down on the middle. If the connector is even slightly misaligned, the connector can bend, causing permanent damage.

    • If you have a blank screen, white lines on the display, or partial or complete lack of touch response after reassembling your phone, try disconnecting and carefully reconnecting both of these cables and make sure they are fully seated.

  15. iPhone 7 Logic Board Replacement: step 16, image 1 of 3 iPhone 7 Logic Board Replacement: step 16, image 2 of 3 iPhone 7 Logic Board Replacement: step 16, image 3 of 3
    • Remove the two 1.3 mm Phillips #000 screws securing the bracket over the front panel sensor assembly connector.

    • Some phones could be Y000. Apple started using Y000 for these at some point in the middle of the product's lifecycle.

  16. iPhone 7 Logic Board Replacement: step 17, image 1 of 2 iPhone 7 Logic Board Replacement: step 17, image 2 of 2
    • Disconnect the front panel sensor assembly connector from its socket on the logic board.

    • This press connector should also be reconnected one end at a time to minimize the risk of bending.

  17. iPhone 7 Logic Board Replacement: step 18, image 1 of 1
  18. iPhone 7 Logic Board Replacement, SIM Card: step 19, image 1 of 3 iPhone 7 Logic Board Replacement, SIM Card: step 19, image 2 of 3 iPhone 7 Logic Board Replacement, SIM Card: step 19, image 3 of 3
    • 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. However, ensure the eject tool is properly aligned beforehand as to not damage the eject mechanism inside the phone.

    • 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.

  19. iPhone 7 Logic Board Replacement, Logic Board Connectors: step 20, image 1 of 2 iPhone 7 Logic Board Replacement, Logic Board Connectors: step 20, image 2 of 2
    • Use the flat end of a spudger to disconnect the rear-facing camera connector.

  20. iPhone 7 Logic Board Replacement: step 21, image 1 of 2 iPhone 7 Logic Board Replacement: step 21, image 2 of 2
    • Remove the following Phillips screws securing the rear camera bracket to the rear case:

    • One 1.3 mm screw

    • One 2.5 mm screw

  21. iPhone 7 Logic Board Replacement: step 22, image 1 of 1
    • Remove the bracket.

  22. iPhone 7 Logic Board Replacement: step 23, image 1 of 2 iPhone 7 Logic Board Replacement: step 23, image 2 of 2
    • Use the pointed end of a spudger to pry up and disconnect the antenna bus connector, just left of the rear camera module.

  23. iPhone 7 Logic Board Replacement: step 24, image 1 of 1
    • Remove the two 1.2 mm tri-point screws securing the upper cable bracket.

  24. iPhone 7 Logic Board Replacement: step 25, image 1 of 2 iPhone 7 Logic Board Replacement: step 25, image 2 of 2
    • Remove the upper cable bracket.

  25. iPhone 7 Logic Board Replacement: step 26, image 1 of 2 iPhone 7 Logic Board Replacement: step 26, image 2 of 2
    • Use the flat end of a spudger to disconnect the upper cable connector.

  26. iPhone 7 Logic Board Replacement: step 27, image 1 of 2 iPhone 7 Logic Board Replacement: step 27, image 2 of 2
    • Remove the four Phillips screws securing the Wi-Fi antenna:

    • Three 1.2 mm screws

    • One 1.7 mm screw

  27. iPhone 7 Logic Board Replacement: step 28, image 1 of 2 iPhone 7 Logic Board Replacement: step 28, image 2 of 2
    • Remove the top left antenna.

  28. iPhone 7 Logic Board Replacement: step 29, image 1 of 1
    • Remove the following Phillips screws:

    • One 1.3 mm screw

    • One 2.2 mm screw

  29. iPhone 7 Logic Board Replacement: step 30, image 1 of 2 iPhone 7 Logic Board Replacement: step 30, image 2 of 2
    • Remove the bracket.

    • Remove the 2.2 mm standoff screw from the grounding bracket.

    • Standoff screws are best removed using a standoff screwdriver or bit.

    • In a pinch, a small flathead screwdriver will do the job—but use extra caution to ensure it doesn't slip and damage surrounding components.

  30. iPhone 7 Logic Board Replacement: step 32, image 1 of 2 iPhone 7 Logic Board Replacement: step 32, image 2 of 2
    • Use tweezers to gently bend the logic board grounding bracket out of the way.

  31. iPhone 7 Logic Board Replacement, Logic Board: step 33, image 1 of 3 iPhone 7 Logic Board Replacement, Logic Board: step 33, image 2 of 3 iPhone 7 Logic Board Replacement, Logic Board: step 33, image 3 of 3
    • Use the point of a spudger to lift the two antenna cable connectors up off of the sockets on the logic board.

  32. iPhone 7 Logic Board Replacement: step 34, image 1 of 3 iPhone 7 Logic Board Replacement: step 34, image 2 of 3 iPhone 7 Logic Board Replacement: step 34, image 3 of 3
    • Use tweezers to gently derout the antenna cables from the metal bracket on the logic board.

  33. iPhone 7 Logic Board Replacement: step 35, image 1 of 2 iPhone 7 Logic Board Replacement: step 35, image 2 of 2
    • Use the point of a spudger to disconnect the lower cable connector.

    • Remove the following screws:

    • One 1.4 mm Phillips screw

    • Three 2.2 mm standoff screws

    • Standoff screws are best removed using a standoff driver.

    • In a pinch, a small flathead screwdriver will do the job—but use extra caution to ensure it doesn't slip and damage surrounding components.

  34. iPhone 7 Logic Board Replacement: step 37, image 1 of 2 iPhone 7 Logic Board Replacement: step 37, image 2 of 2
    • Use the point of a spudger to move the SIM card eject plunger out of the logic board's way.

  35. iPhone 7 Logic Board Replacement: step 38, image 1 of 2 iPhone 7 Logic Board Replacement: step 38, image 2 of 2
    • Use the flat end of a spudger to gently lift the battery connector end of the logic board up.

    • Make sure you're not pulling against any cables. If you feel resistance, check all cables, connectors, and components are clear of the board.

  36. iPhone 7 Logic Board Replacement: step 39, image 1 of 3 iPhone 7 Logic Board Replacement: step 39, image 2 of 3 iPhone 7 Logic Board Replacement: step 39, image 3 of 3
    • Lift the battery connector end of the logic board and pull it up and out of the rear case.

    • Be careful not to snag the logic board on any cables.

Заключение

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

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Evan Noronha

Участник с: 05.02.2015

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Комментариев: 12

I had an accident where my iphone has got some damage (cracked screen, metal frame slightly bent).. I can see a lot of iCloud locked devices for sale, some of them for a cheap price. Would replacing the logic board and home button give me a non-damaged working phone? Or what parts would need to be moved for this? Sure I can buy a brand new phone but I like a bit of a challenge :)

Steve - Ответить

the logic board holds the OS, so yes if you were to replace the mother board of the iPhone it should work like a new phone but without touch id

Vegas Uprising -

I have the same idea and i found to buy this one

https://www.aliexpress.com/item/For-iPho...

You think it will work?

alexandros papadopoulos -

Hi,

I’ve got a problem with my iphone7. I just took some videos under the water using my iphone. But later it’s finger id has gone and it’s fully damaged. Now the phone is not working. Is there any option to repair this ….?

muhammed faisal - Ответить

Hi Muhammed, sounds like some water got inside your phone. Check out our iPhone liquid damage guide for some basic troubleshooting you can do on your own. When you have the phone open check connectors and pins on the board for any corrosion. If the damage is serious enough that cleaning won’t fix it, you can take your phone to a local repair shop for more extensive repairs.

Adam O'Camb -

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