Home Guides iPhone SE (1st Generation) iPhone SE Logic Board Replacement

iPhone SE Logic Board Replacement

Follow these instructions to substitute a defectiveThe main circuit board, containing the integrated circuits and components that control the device's functions, is referred to as the logic board.Within the iPhone SE.

The specified part cannot be used with this system.iPhone 5s component.

  • Due to a factory pairing process, the logic board and Touch ID sensor function as a matched set for every iPhone model.Substituting the logic board necessitates a compatible home button, previously linked to the new logic board, to maintain Touch ID functionality.

Step 1 | Removing the Pentalobe screws

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Begin the process by ensuring the 1/4-inch hex key is used to loosen the four screws securing the battery cover, then carefully remove the cover to access the battery compartment.To ensure optimal performance during the repair, deplete the iPhone's battery to a level below 25% prior to continuing.A lithium-ion battery must be fully charged.Accidental puncture creates a fire and/or explosion hazard.
Ensure the device is completely de-energized by turning it off prior to commencing the teardown process.
Using a Pentalobe screwdriver, detach the two screws, each measuring 3.9 mm, located on both sides of the Lightning connector.

Step 2 | Taping the display glass

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Using a 5/32-inch hex key, carefully loosen and remove the four retaining screws securing the fan assembly, noting that the assembly weighs approximately 1.25 pounds and requires support to prevent damage to the adjacent wiring harness; proceed with caution.To avoid injury and contain shattered fragments while you work, secure any cracked display glass with tape.
Completely cover the iPhone's screen with overlapping strips of clear packing tape to protect the display.
To prevent glass fragments from scattering and maintain stability during the display separation process, this technique is essential.
To safeguard your eyes from potential glass fragments that may detach during the repair process, always use safety glasses.

Step 3 | Display separation prevention

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Using a 5/32-inch hex key, carefully tighten the retaining screw on the motor assembly to a torque of 3.5 Nm, ensuring the motor shaft remains aligned to prevent damage.Carefully lift the display assembly—consisting of a glass screen, a plastic bezel, and integrated metal clips—from within the phone's chassis during the subsequent procedure.
Ensure complete removal of the display assembly, irrespective of the chosen tool.
When separation between the glass and plastic is observed, matching the visual example provided, use a plastic opening tool to insert it into the gap between the plastic frame and the phone's metal chassis, carefully levering the retaining clips away from the case.
To ensure the phone remains securely closed during reassembly when the display bezel is detached, apply a narrow adhesive strip positioned between the plastic bezel and the glass.

Step 4 | Anti-Clamp instructions

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Using a 5/32-inch hex key, carefully tighten the retaining screw on the motor assembly to a torque of 3.5 Nm, ensuring you do not overtighten and damage the threads.To simplify the subsequent opening process, the following instructions utilize the Anti-Clamp tool, a custom design; if you do not have this tool, proceed two steps further to find an alternative approach.
Refer to the included guide for detailed procedures regarding Anti-Clamp operation.
  • To release the Anti-Clamp's arms, move the blue handle in a rearward direction.
  • Position the arms so they extend across the iPhone's left or right side.
  • Affix one suction cup to the front surface of the iPhone, close to the lower edge and directly over the home button, and secure a second suction cup to the rear surface in the same relative position.
  • Apply vacuum by pressing the cups firmly against the surface you intend to work on.
  • To improve the Anti-Clamp's grip on a slick iPhone exterior, apply the provided adhesive pad, which will increase surface friction.

Step 5

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Using a 5/32-inch hex key, carefully tighten the four mounting screws securing the fan assembly to the motor housing, ensuring each is snug but not over-tightened to prevent damage; observe a torque of 6 in-lbs per screw.To secure the arms, advance the blue handle in the direction indicated.
  • Rotate the handle fully, completing a 360-degree turn, observing for the initial signs of cup expansion.
  • Maintain proper alignment between the suction cups; should misalignment occur, gently release the suction cups' hold and reposition the arms.
  • Once sufficient space is created by the Anti-Clamp, slide a prying tool beneath the display.
  • To ensure adequate clearance, reposition the handle by 90 degrees.
  • Apply rotations no greater than 90 degrees, pausing for several seconds after each adjustment to allow the Anti-Clamp mechanism to function and the process to complete.

Step 6 | Manual Opening Procedure

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Lacking an Anti-Clamp device, proceed with caution.Carefully employ a suction cup to raise the front panel.
  • Position a suction cup directly on the display surface, situated immediately above the home button.
  • Ensure the screen's entire surface is covered by the cup to guarantee a secure connection.

Step 7 | Start lifting the front panel assembly

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Carefully detach the front panel, ensuring you use a Phillips head screwdriver to remove the four screws securing it, each measuring 1/4 inch, and be aware that the panel is fragile and may crack if handled roughly.Secure with clips and linked to other components via multiple ribbon cables, the part requires careful detachment; release these clips and separate the phone minimally to allow for cable disconnection, proceeding with caution to prevent any harm.
  • Securely affix the suction cup to the front panel assembly, positioning it close to the home button.
  • Using one hand to secure the iPhone, lift the suction cup vertically to gently create a small gap between the front panel and the rear case, beginning at the home button area.
  • Using a plastic opening tool, lift the rear case's perimeter away from the front panel assembly, applying gentle force while simultaneously raising the assembly with a suction cup.
  • Exercise caution and use steady, even pressure when installing the front panel assembly, as it requires a snugger fit than typically encountered in similar equipment.

Step 8

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Avoid attempting full detachment.Carefully detach the front panel assembly from the rear case, noting the multiple sensitive ribbon cables that connect the two components.
  • To detach the suction cup, depress the small plastic projection to break the airtight seal.
  • Carefully detach the screen from the device using the suction cup.

Step 9 | Removing the Touch ID cable bracket

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  • Carefully separate the phone's casing to expose the metallic securing bracket that protects the home button cable.
  • To prevent damage to the home button cable and its connector, avoid excessive separation of the phone's housing; maintain slack in the cable, as overextension can cause harm.
  • The Touch ID feature is exclusive to the phone's factory-installed home button assembly; replacement with a non-original part will result in a standard home button without Touch ID capabilities, and cable damage during installation will produce the same outcome.
  • Employ the pointed end of a screwdriver to carefully depress the retaining clip.Use a plastic pry tool, often referred to as a spudger, to gently separate components.Using tweezers, carefully disengage the bracket.
  • For reassembly procedures, proceed with the following two steps later; if you are currently disassembling, bypass these instructions and move directly to Step 12.

Step 10

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To complete reassembly, secure the Touch ID cable bracket by positioning its upper edge between the battery and the Touch ID cable connector, ensuring it sits ahead of the metal tab, then engage the bracket's lower edge over the connector to lock it in place.

  • Align the bracket's upper edge with the Touch ID cable connector and move it horizontally to the right.
  • Position the bracket so it rests on the connector; the side featuring the projecting "leg" will naturally create a small incline, ensuring the opposing edge aligns precisely between the connector and the battery's adjacent metal tab.Use a plastic pry tool, often referred to as a spudger, to gently separate components.Position the component flush with the bracket, then secure it by lightly pressing downwards to engage both the rear and front clasps.

Step 11

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Employ the flat end of a screwdriver to facilitate reassembly.Use a spudger.Secure the Touch ID cable connector by pressing the front section of its bracket firmly into place.

To ensure the bracket sits level against the surface, reposition it by sliding it back over the cable connector if it doesn't seat properly.

Step 12 | Disconnecting the home button cable connector

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  • Employ the pointed end of a screwdriver to carefully apply pressure.Use a plastic pry tool, often referred to as a spudger.Carefully use a prying tool to lift the home button cable connector vertically from its receptacle.
  • Carefully detach the cable connector from its receptacle; avoid lifting the receptacle itself, as it's affixed to a cable secured with adhesive that can be dislodged if excessive force is applied.

Step 13 | Opening up the phone

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  • After disengaging the connector, pivot the assembly, gripping the home button end and using the phone's upper edge as a fulcrum to separate it from the rear case.
  • Carefully separate the display assembly from the device housing, creating an approximately 30-degree angle.Rotate to a 90-degree angle.Position the device at an angle, securing it in place with support to prevent movement during the repair process.
  • To avoid stressing the display's wiring during the repair process, secure it with a rubber band.
  • As a temporary substitute, an unopened, sealed can of soda or similar beverage may be used to support the display during the repair.

Step 14

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Detach the two 4mm screws securing the component.One point six millimeters.The metal bracket that holds the battery connector is fastened to the logic board using Phillips #000 screws.

Step 15

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Detach the bracket securing the battery connector using a tri-point screwdriver, ensuring no damage occurs to surrounding components.

Step 16

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  • Carefully lift the battery connector away from its socket on the logic board, utilizing the flat edge of a spudger to avoid damage.
  • Exercise extreme caution during disconnection, applying force solely to the battery connector; any leverage applied to the logic board socket or the board itself risks socket destruction or damage to adjacent components.

Step 17

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  • Detach the cable bracket that holds the front panel assembly wiring by unscrewing the screws listed below.
    • A Phillips head screwdriver, size #000, is needed to remove a screw measuring 1.7 millimeters.
    • A Phillips head screwdriver, size #000, is needed to remove a 1.2-millimeter screw.
    • A Phillips screwdriver, size #000, is needed to remove a 1.3-millimeter screw.
    • An additional screw, measuring 1.7 mm in width and utilizing a Phillips #000 head, is required.
    Please provide the original text you want me to rewrite. I need the sentence or instruction to be able to fulfill your request.Utilize a screw with a diameter of 1.7 millimeters.Due to its non-magnetic properties, it will not adhere to a magnetized screwdriver; exercise caution to prevent loss during removal.
    Carefully organize all screws during this stage, as incorrect screw placement during reassembly can cause damage.Use a 1.3-millimeter screw.Alternatively, aUse screws with a 1.7-millimeter head diameter.Inserting a tool into that specific lower-right aperture risks substantial logic board damage, preventing the device from powering on.
    Avoid excessive tightening and do not apply undue force when securing screws; if resistance is encountered, verify that the correct screw size is being used.

Step 18

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  • Detach the cable bracket securing the front panel assembly cable to the logic board.

Step 19

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  • Carefully detach the front camera and sensor assembly's cable using a spudger or similar tool.

Step 20

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  • Prior to either detaching or reattaching the cable in this procedure, ensure the battery is disconnected.
    Carefully separate the LCD cable connector.
    Should the LCD cable become detached from its connector during reassembly, a blank screen or white lines may appear upon powering on the device; to resolve this, reattach the cable and restart the phone by disconnecting and reconnecting the battery.

Step 21

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Carefully detach the digitizer cable connector.

Step 22

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Detach the front panel assembly from the rear case.

Step 23 | SIM Tray

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  • Carefully position aUse the provided SIM card removal tool to release the SIM card tray.Use a paperclip, inserted into the SIM card tray’s tiny aperture, to release it.
  • Apply substantial pressure until the tray releases.

Step 24

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  • Carefully detach the component, ensuring all original fasteners are retained for reassembly.The component responsible for housing and accessing the SIM card is the SIM card tray assembly.Retrieve the component from the iPhone.
  • Confirm the SIM card's alignment within the tray before sliding it back in, matching its position to the tray's design.

Step 25 | Logic Board

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  • Employ a 3/8-inch socket wrench to loosen the retaining bolt, ensuring you maintain a firm grip and avoid excessive force to prevent damage to the bolt head or the connected component.Use a plastic pry tool, often referred to as a spudger.Using careful, controlled force, lift the button assembly cable connector vertically away from its corresponding socket on the logic board.
  • Exercise extreme caution during separation, ensuring force is applied solely to the connector itself, as applying pressure to the logic board socket risks irreversible damage to the connector.

Step 26

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  • Employ a 3/8-inch socket wrench to loosen the retaining nut, ensuring you apply consistent torque to prevent damage to the threaded shaft and observe the safety warning regarding eye protection.Use a plastic pry tool, often called a spudger, to gently separate components.Carefully use a prying tool to lift the Lightning connector cable away from its corresponding socket on the logic board.
  • To access the logic board, carefully move the Lightning connector cable aside.

Step 27

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  • Employ the pointed end of a screwdriver to carefully apply pressure.Use a spudger.Carefully use a prying tool to release the antenna cable from its connection on the logic board.

Step 28

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  • Employ the tool's straight, planar edge.Use a plastic pry tool to gently separate.Carefully detach the rear camera's connector from its corresponding port on the logic board.

Step 29

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Carefully detach all masking tape from the camera flash bracket.

Step 30

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  • Using the appropriate screwdriver, detach the logic board by unscrewing all listed screws.
    A Phillips head screw, size #000 and measuring 2.4 millimeters.
  • The logic board's metal contact is secured by this screw; it's positioned beneath a plastic bracket and may require removal following the procedure outlined in this step if it becomes loose.
  • Use two screws, each measuring 2.3 mm in length and a Phillips #000 head type.
  • Use three screws, each measuring 2.8 millimeters in diameter.
  • A standoff screw, measuring 2.9 mm in diameter and constructed from a non-magnetic material, is required.
  • To detach standoff screws, utilize a standoff screwdriver or a compatible bit.
  • If a dedicated tool isn't available, a small flathead screwdriver can be carefully substituted; however, exercise heightened awareness to prevent slippage and potential harm to nearby parts.

Step 31

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Carefully insert a plastic opening tool between the logic board and the device casing, gently prying upwards until you can securely grasp the logic board with your fingers.

Step 32

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  • Carefully move the logic board outward, creating a small gap between it and the rear-facing camera assembly.
  • Avoid detaching the logic board at this stage, because it remains secured to the chassis via a cable located on the rear panel.
  • Carefully rotate the logic board so that it faces the battery, mimicking the action of turning a page.

Step 33

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  • Employ the specified tool to carefully manipulate the component, ensuring a torque of 5.2 Newton-meters is applied, and observe the safety precautions regarding potential pinch points and the risk of damaging the retaining clip.The tool's planar terminus.Using a 5/32-inch hex key, carefully tighten the set screw located on the motor shaft to a torque of 3.5 Nm, ensuring you observe the safety warning regarding eye protection.Use a plastic pry tool, often referred to as a spudger.Carefully detach the antenna cable from its connector located on the rear surface of the logic board.
  • Carefully detach the iPhone's logic board.

Step 34

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  • The rear camera area contains a small metal plate that has become detached and risks complete separation from its designated space.
    To prevent loss of this tiny component, detach it and place it in a secure location for safekeeping during the repair process.
  • Carefully detach the plate located under the bracket on the left side of the rear camera using tweezers.
  • Ensure the plate's small tab aligns to the right side and its longest flat surface contacts the phone's top edge during reassembly.
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