iPhone 6s Plus Logic Board Replacement

• To prevent potential hazards, ensure the iPhone's battery level is reduced to less than 25% prior to commencing any disassembly procedures.A fully charged lithium-ion batteryposes a risk of ignition and/or forceful rupture if it sustains accidental damage.
• Deactivate the iPhone by powering it down completely before starting the disassembly process.
• Begin the disassembly by extracting the pair of 3.4 mm Pentalobe screws located on both sides of the Lightning connector.

• The following two procedures illustrate the function of the Anti-Clamp, a specialized tool developed to simplify the initial opening process; should you choose not to utilize this tool, proceed down three steps to access an alternative approach.
• Detailed guidance regarding the operation of the Anti-Clamp, is available in this separate document.
• To release the locking mechanism, draw the blue handle rearward, which will disengage the Anti-Clamp's arms.
• Carefully position the arms across either the left or right side of your iPhone.
• Place the suction cups close to the lower edge of the iPhone, situated directly above the home button—one on the front surface and one on the rear.
• Apply pressure by compressing the cups together to establish a secure suction hold on the intended area.
• Should the iPhone's surface prove excessively slick, preventing adequate adhesion by the Anti-Clamp, applying tape can generate a more textured surface for improved grip.

• To secure the arms, advance the blue handle in its direction.
• Rotate the handle clockwise a full revolution, or until the suction cups begin to expand.
• Maintain the parallel positioning of the suction cups; should they become misaligned, slightly release the suction cups and reposition the arms.
• Introduce an opening pick beneath the display screen once the Anti-Clamp has generated a noticeable separation.
• Should the Anti-Clamp fail to produce an adequate gap, rotate the handle by 90 degrees.
• Avoid rotating the handle beyond a 90-degree increment at any point, and allow several seconds to elapse between rotations, permitting the Anti-Clamp and time to facilitate the separation.

• In the absence of an Anti-Clamp tool, proceed with the subsequent three instructions utilizing a suction handle.Anti-Clamp, follow the next three steps to use a suction handle.
• To facilitate separation, gently warm the lower display perimeter of the iPhone with an iOpener or hair dryer, maintaining the heat for approximately one minute.
• The application of heat reduces the adhesive's strength, which holds the display in place, thereby simplifying the opening process.

• Separating the display from the 6s Plus device involves releasing a narrow band of adhesive that runs along the display's outer edge. To ensure a secure reassembly, prepare replacement adhesive strips if you intend to substitute the existing ones. Successful completion of this repair is achievable without adhesive replacement, and operational performance should remain unaffected.
• Securely attach a suction cup to the lower-left corner of the display assembly.
• Should the display exhibit severe cracking, applying a layer of transparent packing tape can improve the suction cup's grip. As an alternative, a robust adhesive tape can be utilized in place of the suction cup. In situations where neither method proves effective, consider using superglue to affix the suction cup to the fractured screen.

• To separate the front panel from the rear case, exert steady, forceful upward pressure on the suction cup, which should generate a minimal space.
• Excessive force during separation risks damaging the display assembly; therefore, apply only the necessary pressure to establish a small separation between the display assembly and the rear case.

• Initiate the separation process by applying force to the recessed area located on the front panel, positioned directly above the headphone jack, as this provides the most secure starting point.
• Continuing to apply consistent downward force with the suction cup, carefully slide the thin, wedge-shaped end of a spudger into the opening that has formed, precisely situated above the headphone jack.

• Utilize the spudger, rotating it to incrementally increase the separation between the front panel assembly and the rear enclosure.

• Employing the flat end of the spudger, carefully position it beneath the rightmost perimeter of the display assembly.spudgerWith the spudger inserted, gently advance it along the right-hand side of the display.
• spudgerspudgerContinue the sliding motion upwards along the right vertical edge.

• Employ a plastic opening tool to maintain pressure on the rear enclosure as you lift the suction cup, facilitating the phone's opening.A plastic opening tool is essential for this step.Avoid complete removal of the display assembly, as doing so risks damaging the delicate data cables situated close to the upper portion of the iPhone.
• Complete display separation will result in data cable compromise.The data cables are vulnerable to damage if the display is fully detached.

• Carefully lift the display assembly by holding it firmly, pivoting it open to access the phone's interior, utilizing the clips located at the top edge of the front panel as a pivot point.
• Position the opened display at approximately a 90-degree angle and secure it against a stable object to maintain its position during the repair process.
• Avoid exceeding a 90-degree opening angle for the display, as it remains connected to the phone's upper section via delicate cables responsible for the display functionality, digitizer operation, and front-facing camera, which are susceptible to damage from excessive force.
• Employ a rubber band to hold the display in a stable position during the repair, minimizing stress and potential damage to the display cables.
• As an alternative solution when a rubber band is unavailable, an unopened, sealed beverage container can be used to prop up the display.

• To detach the battery connector bracket from the logic board, first, unscrew the two Phillips screws that hold it in place, noting their differing lengths.
  A 2.9-millimeter screw is required for this step.
  A 2.3-millimeter screw is also needed.

During this repair process, meticulously organize and document the location of each screw to ensure correct reinstallation; improper screw placement can result in irreversible component failure.

Employ a spudgerAlternatively, a clean fingernail can be utilized to release the battery connector, achieved by applying upward pressure directly above the logic board.

To prevent unintended electrical connections, carefully restore the connector to its original shape, then activate the iPhone's power functions while continuing the repair process.

• To proceed with the repair, detach the subsequent fasteners.Utilize Phillips head screwdrivers to remove these fasteners.:
  
  • Specifically, three screws with a 1.3 millimeter head diameter are required for removal.
  • Additionally, one screw measuring 1.6 millimeters in diameter must be detached.
  • A single screw, possessing a 3.0 millimeter diameter, is also necessary to remove.

When reassembling the device, ensuring the correct positioning of this3.0 millimeter screw within the upper-rightmost section of the bracket is absolutely essential; improper placement could result in damage to the logic board.

Detach the securing bracket that holds the display cable in place.

• Exercise caution, ensuring that prying force is applied solely to the connector body, avoiding damage to the socket situated on the logic board.
• Employ a plastic opening toolfor the purpose of detaching the front-facing camera and sensor cable connector.

• Employ a plastic opening tool to release the digitizer cable's connection, lifting it vertically from its socket situated on the logic board.A plastic opening tool is required for this step.To ensure proper reattachment, avoid applying pressure to the central area of the digitizer cable connector; instead, sequentially press each end of the connector to prevent deformation.
• Central pressure on the connector can compromise the component's integrity.This can lead to damage of the digitizer.Complete the procedure with careful attention to detail.

• Prior to detaching or reattaching the cable within this procedure, confirm the battery's power is entirely removed.
• To release the home button/fingerprint sensor cable, apply upward force directly to it, separating it from its connection point on the logic board.

• Detach the display assembly from the device.
• If you intend to substitute the adhesive securing the display's perimeter during reassembly, halt the process at this stage.

• To detach the camera bracket, eliminate the listed Phillips screws.
  • A 1.9-millimeter screw is required for removal.
  • A 2.4-millimeter screw must also be taken out.

• Carefully detach the iSight camera connector from its corresponding receptacle on the logic board.
  Ensure that your prying action lifts solely the connector itself, avoiding any movement of the socket secured to the logic board.

• Employing the planar edge of the spudger, carefully position it within the gap separating the iSight camera assembly and the device's rear enclosure.spudgerUsing a delicate prying motion, disengage the camera from its retaining structure.
• Gently pry the camera out from its housing.

• Detach the iSight camera assembly.

1. Position a SIM eject tool within the aperture located on the SIM tray.
   Apply pressure to release the SIM tray from its housing.

1. Extract the SIM card tray from the device.
   During the process of placing the SIM tray back into its slot, confirm that the tray's orientation aligns with the SIM eject aperture positioned at the lower edge.

• Detach the solitary 1.4 mm Phillips screw securing the NFC bracket's position.

• Detach the near-field communication antenna assembly.

• Detach the audio control cable bracket from the logic board by eliminating the two2.7 mm Phillips screwsthat hold it in place.

• To detach theaudio control cablerelease its connector from the logic board's socket by applying upward force.

• To detach the cellular antenna cablerelease its connector by applying upward force, ensuring it remains aligned with its socket on the logic board.

• To detach the Wi-Fi diversity antenna cablerelease its connector from the logic board using a prying motion.

• To proceed, detach the power button flex cable by carefully separating it from its connector on the logic board.

• To disassemble, first detach these screws:
  A Phillips screwdriver is needed to extract a single 1.3-millimeter screw.
  A single 2.6-millimeter Phillips screw must also be removed.
  A 2.2-millimeter standoff screw requires removal as well.
• Employing a standoff screwdriver or bit is the preferred method for removing standoff screws.
• If a standoff screwdriver is unavailable, a small flathead screwdriver can be substituted, but exercise heightened care to prevent slippage and potential damage to nearby parts.

• Proceed with disconnecting the cellular antenna cable from the second and third clips securing it to the logic board.
• Employ the tapered end of a spudgerto carefully separate the cellular antenna cable from the central logic board clip.
• Avoid attempting removal by directly grasping and pulling the cable, because doing so risks damage to the cable's internal structure.
• To allow the cable to connect to its designated socket on the logic board, it must be directed over the logic board and beneath the audio control flex cable, as illustrated in the initial image.

• To access the solitary antenna connector, which is situated on the lower surface close to the upper edge, elevate the logic board into an upright orientation.
• Refrain from completely detaching the logic board at this stage, because the Wi-Fi and Bluetooth antenna remains affixed to its underside.

• Carefully position the logic board with its underside facing upwards, ensuring the upper section is supported by the iPhone's rear case.
• Employ the broad, flat edge of the spudger tool to release the Wi-Fi/Bluetooth antenna cable from its connector located on the logic board's rear surface.

• Carefully detach the main circuit board from the device.