iPhone 5 Logic Board Replacement
Replace the existing logic board within the iPhone 5 to restore functionality.
Step 1 | Taping the display glass
Begin the process by carefully disconnecting the 12V power supply, ensuring all residual charge is safely discharged before proceeding to remove the four M4 screws securing the control module to the chassis; utilize a Phillips head screwdriver for this task, and observe the warning regarding potential static discharge.
To mitigate the risk of additional shattering and potential injury while repairing a cracked display glass, secure the glass with tape.
Apply clear packing tape across the iPhone screen in successive layers, ensuring complete coverage of the display surface.
To safeguard your eyes from potential glass fragments that may detach during the repair process, it is essential to use safety glasses.
To mitigate the risk of additional shattering and potential injury while repairing a cracked display glass, secure the glass with tape.
Apply clear packing tape across the iPhone screen in successive layers, ensuring complete coverage of the display surface.
To safeguard your eyes from potential glass fragments that may detach during the repair process, it is essential to use safety glasses.
Step 2 | Remove the Pentalobe screws
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 aligns properly and avoiding over-tightening to prevent damage.
To prevent potential fire or explosion hazards during repair, ensure the iPhone's lithium-ion battery is depleted to a level below 25% prior to beginning work; a fully charged battery poses a significant risk of combustion if damaged.
To prevent electrical shock or damage, ensure the iPhone is completely de-energized prior to starting the repair process.
Using a Pentalobe screwdriver, detach the two screws measuring 3.6 mm located adjacent to the Lightning connector.
To prevent potential fire or explosion hazards during repair, ensure the iPhone's lithium-ion battery is depleted to a level below 25% prior to beginning work; a fully charged battery poses a significant risk of combustion if damaged.
To prevent electrical shock or damage, ensure the iPhone is completely de-energized prior to starting the repair process.
Using a Pentalobe screwdriver, detach the two screws measuring 3.6 mm located adjacent to the Lightning connector.
Step 3 | How to prevent display separation
Using a 5/32-inch hex key, carefully tighten the three retaining screws on the motor assembly to a torque of 3.5 inch-pounds, ensuring not to overtighten and potentially damage the threads.
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 procedures.
Ensure complete removal of the display assembly, irrespective of the chosen tool.
When the glass and plastic layers detach, referencing the initial image for visual guidance, use a plastic opening tool to carefully insert it into the gap between the plastic frame and the phone's metal chassis, gently releasing the metal clips securing the case.
To ensure proper closure during reassembly of a phone featuring a detached display bezel, apply a narrow adhesive strip positioned between the plastic bezel and the glass surface.
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 procedures.
Ensure complete removal of the display assembly, irrespective of the chosen tool.
When the glass and plastic layers detach, referencing the initial image for visual guidance, use a plastic opening tool to carefully insert it into the gap between the plastic frame and the phone's metal chassis, gently releasing the metal clips securing the case.
To ensure proper closure during reassembly of a phone featuring a detached display bezel, apply a narrow adhesive strip positioned between the plastic bezel and the glass surface.
Step 4 | Anti-Clamp instructions
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 aligns correctly and observing the warning against over-tightening that could damage the threads.
To simplify the subsequent disassembly, utilize the Anti-Clamp tool; otherwise, proceed to the instructions two steps further down for a different 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.
To secure the iPhone for repair, place a suction cup on the front surface, close to the lower edge and directly over the home button, and another suction cup on the rear, in a similar location near the bottom.
Apply vacuum by pressing the cups firmly against the surface you intend to work on.
To improve the Anti-Clamp's grip if the iPhone's exterior feels excessively slick, apply adhesive tape to the device's surface.
To simplify the subsequent disassembly, utilize the Anti-Clamp tool; otherwise, proceed to the instructions two steps further down for a different 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.
To secure the iPhone for repair, place a suction cup on the front surface, close to the lower edge and directly over the home button, and another suction cup on the rear, in a similar location near the bottom.
Apply vacuum by pressing the cups firmly against the surface you intend to work on.
To improve the Anti-Clamp's grip if the iPhone's exterior feels excessively slick, apply adhesive tape to the device's surface.
Step 5
Using a 5/32-inch hex key, carefully tighten the three retaining screws on the motor assembly to a torque of 3.5 inch-pounds, ensuring you observe the safety warning regarding eye protection during this process.
Moving the blue handle in a forward direction will engage the locking mechanism for the arms.
Rotate the handle fully, completing a 360-degree turn, observing for the initial expansion of the cups.
Maintain parallel positioning of the suction cups; should misalignment occur, gently reduce the suction and reposition the arms.
Once sufficient separation is achieved by the Anti-Clamp tool, slide a prying tool beneath the display panel.
To ensure adequate separation, increase the heat applied to the component and then rotate the handle by 90 degrees.
Allow one minute to elapse and refrain from rotating the component beyond a 90-degree arc per adjustment; this permits the Anti-Clamp mechanism to function properly and facilitates a secure fastening.
Moving the blue handle in a forward direction will engage the locking mechanism for the arms.
Rotate the handle fully, completing a 360-degree turn, observing for the initial expansion of the cups.
Maintain parallel positioning of the suction cups; should misalignment occur, gently reduce the suction and reposition the arms.
Once sufficient separation is achieved by the Anti-Clamp tool, slide a prying tool beneath the display panel.
To ensure adequate separation, increase the heat applied to the component and then rotate the handle by 90 degrees.
Allow one minute to elapse and refrain from rotating the component beyond a 90-degree arc per adjustment; this permits the Anti-Clamp mechanism to function properly and facilitates a secure fastening.
Step 6 | Manual Opening Procedure
Position a suction cup directly on the display surface, situated slightly higher than the home button's location.
Ensure full contact between the cup and the screen surface to guarantee a secure seal.
To prevent further glass fragmentation and ensure a secure grip for the suction cup, apply several strips of packing tape to the face of iPhones exhibiting cracked glass, carefully smoothing to eliminate any trapped air.
Ensure full contact between the cup and the screen surface to guarantee a secure seal.
To prevent further glass fragmentation and ensure a secure grip for the suction cup, apply several strips of packing tape to the face of iPhones exhibiting cracked glass, carefully smoothing to eliminate any trapped air.
Step 7 | Start lifting the front panel assembly
Secure the front panel assembly to the suction cup, ensuring a strong bond.
Using one hand to secure the iPhone, lift the suction cup vertically to gently create a small gap between the front panel and the device's back cover.
Exercise caution and use steady, even pressure during installation, as the display assembly has a significantly more precise fit than typical device components.
Using a plastic opening tool, carefully separate the rear case from the display assembly by gently levering it upwards, simultaneously applying upward force with a suction cup.
To release the front panel assembly from the rear case, carefully disengage the multiple retaining clips, potentially requiring the coordinated use of both a suction cup and a plastic opening tool.
Using one hand to secure the iPhone, lift the suction cup vertically to gently create a small gap between the front panel and the device's back cover.
Exercise caution and use steady, even pressure during installation, as the display assembly has a significantly more precise fit than typical device components.
Using a plastic opening tool, carefully separate the rear case from the display assembly by gently levering it upwards, simultaneously applying upward force with a suction cup.
To release the front panel assembly from the rear case, carefully disengage the multiple retaining clips, potentially requiring the coordinated use of both a suction cup and a plastic opening tool.
Step 8 | Detaching the front panel side clips
Carefully work a prying tool around the perimeter of the front panel assembly to release the retaining clips located on both the left and right edges.
Step 9 | Opening up the phone
Disconnecting the front panel assembly entirely from the rear case is not recommended, because several ribbon cables remain connected to the iPhone at the top.
After disengaging the retaining clips located along the lower edge and sides of the front panel assembly, separate the assembly's bottom edge from the rear case by applying gentle outward pressure.
Carefully position the display at a roughly 90-degree angle, then secure it in place using a support to prevent it from falling during the repair process.
To avoid stressing the display's wiring during the repair process, secure it with a rubber band.
After disengaging the retaining clips located along the lower edge and sides of the front panel assembly, separate the assembly's bottom edge from the rear case by applying gentle outward pressure.
Carefully position the display at a roughly 90-degree angle, then secure it in place using a support to prevent it from falling during the repair process.
To avoid stressing the display's wiring during the repair process, secure it with a rubber band.
Step 10 | Removing the battery connector bracket screws
Using appropriate tools, detach the metal battery connector bracket from the logic board by unscrewing the two screws that hold it in place.
Use a Phillips screwdriver to remove a single screw with a 1.8 mm head.
Use a Phillips screwdriver to remove a single screw with a 1.6 mm head.
Use a Phillips screwdriver to remove a single screw with a 1.8 mm head.
Use a Phillips screwdriver to remove a single screw with a 1.6 mm head.
Step 11 | Removing the battery connector bracket
Using a compatible tool, detach the bracket securing the battery connector.
Step 12 | Disconnecting the battery connector
Carefully lift the battery connector away from its connection on the logic board using a plastic opening tool, ensuring no force is applied.
Exercise caution to avoid disturbing the tiny components positioned near the socket.
Exercise extreme caution when releasing the battery connector, ensuring you apply force solely to the connector and avoid contact with the logic board socket; applying pressure to the socket or the board could result in socket damage or harm to adjacent components.
Exercise caution to avoid disturbing the tiny components positioned near the socket.
Exercise extreme caution when releasing the battery connector, ensuring you apply force solely to the connector and avoid contact with the logic board socket; applying pressure to the socket or the board could result in socket damage or harm to adjacent components.
Step 13 | Removing the front panel assembly cable bracket screws
Detach the cable bracket from the logic board by unscrewing the screws listed below.
Use two Phillips head screws, each measuring 1.2 millimeters.
Use a Phillips screwdriver to remove a single screw with a 1.6 mm head.
Because this fastener lacks magnetic properties, use caution during removal to prevent loss, and ensure it's correctly positioned afterward; a magnetized replacement could disrupt compass functionality.
Use two Phillips head screws, each measuring 1.2 millimeters.
Use a Phillips screwdriver to remove a single screw with a 1.6 mm head.
Because this fastener lacks magnetic properties, use caution during removal to prevent loss, and ensure it's correctly positioned afterward; a magnetized replacement could disrupt compass functionality.
Step 14 | Removing the front panel assembly cable bracket
To detach the display cable bracket, raise it in the direction of the battery, then take it out of the iPhone.
To reassemble, secure the left-hand hooks to the logic board, then gently move the bracket outward.
To reassemble, secure the left-hand hooks to the logic board, then gently move the bracket outward.
Step 15 | Disconnecting the front panel assembly cables
Prior to either detaching or reattaching the cables in this procedure, ensure the battery is disconnected.
Carefully detach the three front panel assembly cables by gently separating them using a plastic opening tool or fingernail.
Connect the front camera assembly and its associated sensor cable.
Connect the display panel's flat, ribbon-like cable, ensuring proper alignment to the connector pins, and secure it with the retaining clip.
The flexible ribbon cable connecting the display's touch sensor to the mainboard is the digitizer cable.
Should the LCD cable become detached from its connector during reassembly, it may result in display abnormalities like white lines or a complete lack of image when the device is turned on; to resolve this, reattach the cable and restart the phone, preferably by disconnecting and reconnecting the battery.
Carefully detach the three front panel assembly cables by gently separating them using a plastic opening tool or fingernail.
Connect the front camera assembly and its associated sensor cable.
Connect the display panel's flat, ribbon-like cable, ensuring proper alignment to the connector pins, and secure it with the retaining clip.
The flexible ribbon cable connecting the display's touch sensor to the mainboard is the digitizer cable.
Should the LCD cable become detached from its connector during reassembly, it may result in display abnormalities like white lines or a complete lack of image when the device is turned on; to resolve this, reattach the cable and restart the phone, preferably by disconnecting and reconnecting the battery.
Step 16 | Separating front panel assembly and rear case
Detach the front panel assembly from the rear case.
Step 17 | Lifting the battery
Gently lift the battery from its adhesive backing by grasping the visible, transparent plastic tab.
Should the battery's adhesive prevent easy separation, or if the tab fractures during removal, carefully introduce a small amount of isopropyl alcohol with a concentration exceeding 90% beneath the battery's edge.
Allow approximately sixty seconds for the isopropyl alcohol to soften the adhesive bond. Carefully pry up the battery, engaging its perimeter with a specialized opening tool.
To prevent damage, avoid using excessive force when removing the battery; instead, if necessary, add additional alcohol droplets to dissolve the adhesive. Ensure the battery remains intact and undamaged during removal, and never use the pry tool to bend or pierce it.
To prevent damage, ensure any residual alcohol solution is completely removed by wiping with a clean cloth or by permitting full evaporation before proceeding with the new battery installation.
To assist with battery separation if adhesion remains strong, apply warmth to the iPhone’s rear case using an iOpener or hair dryer to loosen the adhesive.
Exposure to excessive heat poses a fire risk to the iPhone's battery.
Should the battery's adhesive prevent easy separation, or if the tab fractures during removal, carefully introduce a small amount of isopropyl alcohol with a concentration exceeding 90% beneath the battery's edge.
Allow approximately sixty seconds for the isopropyl alcohol to soften the adhesive bond. Carefully pry up the battery, engaging its perimeter with a specialized opening tool.
To prevent damage, avoid using excessive force when removing the battery; instead, if necessary, add additional alcohol droplets to dissolve the adhesive. Ensure the battery remains intact and undamaged during removal, and never use the pry tool to bend or pierce it.
To prevent damage, ensure any residual alcohol solution is completely removed by wiping with a clean cloth or by permitting full evaporation before proceeding with the new battery installation.
To assist with battery separation if adhesion remains strong, apply warmth to the iPhone’s rear case using an iOpener or hair dryer to loosen the adhesive.
Exposure to excessive heat poses a fire risk to the iPhone's battery.
Step 18 | Prying up the battery
Carefully lift the battery from its compartment using the plastic opening tool, focusing exclusively on the outer perimeter of the device to avoid potential logic board damage.
To facilitate battery removal, add additional isopropyl alcohol as needed, ensuring the adhesive loosens sufficiently.
To prevent battery damage and potential fire risk, carefully release the battery from its housing, applying consistent, even pressure.
Avoid forcing the battery's upper edge, as damage to the volume control cables could occur.
To facilitate battery removal, add additional isopropyl alcohol as needed, ensuring the adhesive loosens sufficiently.
To prevent battery damage and potential fire risk, carefully release the battery from its housing, applying consistent, even pressure.
Avoid forcing the battery's upper edge, as damage to the volume control cables could occur.
Step 19 | Removing the battery
Disconnect the power source by detaching the battery.
Carefully detach the protective plastic packaging from the new battery by gently separating it from the ribbon cable.
To guarantee correct positioning within its designated space, briefly plug the battery connector back into the motherboard socket prior to securing the new battery.
Secure the battery in place, then sever its electrical connection before proceeding with the remaining assembly steps.
To ensure proper alignment and prevent component damage during front panel reinstallation, firmly position the battery flush with the rear case.
Following reassembly, execute a factory reset to mitigate potential problems and streamline any subsequent diagnostic procedures.
Carefully detach the protective plastic packaging from the new battery by gently separating it from the ribbon cable.
To guarantee correct positioning within its designated space, briefly plug the battery connector back into the motherboard socket prior to securing the new battery.
Secure the battery in place, then sever its electrical connection before proceeding with the remaining assembly steps.
To ensure proper alignment and prevent component damage during front panel reinstallation, firmly position the battery flush with the rear case.
Following reassembly, execute a factory reset to mitigate potential problems and streamline any subsequent diagnostic procedures.
Step 20 | Logic Board Assembly
Carefully lift the cellular data antenna cable connector from its corresponding socket on the logic board, located directly above the speaker enclosure, employing the pointed end of a spudger.
Step 21
Using the appropriate screwdriver, detach the two screws that fasten the top logic board bracket to the rear case.
- Use a Phillips screwdriver to remove a single screw with a 1.5 mm head.
- A Phillips-head screw, measuring 2.3 millimeters, is required.
Step 22
Carefully detach the bracket, located on the logic board's upper surface.
Carefully avoid damaging the small grounding tab, positioned on the bracket adjacent to the rear camera.
Depending on the model, the bracket is integrated with the camera housing and will remain connected during removal.
Carefully avoid damaging the small grounding tab, positioned on the bracket adjacent to the rear camera.
Depending on the model, the bracket is integrated with the camera housing and will remain connected during removal.
Step 23
Carefully separate the three listed cables from the logic board by gently prying with the flat spudger tip.
- The cable connecting to the upper circuitry.
- The flexible cable connecting the button assembly.
- Carefully detach the interconnect cable from its connector.
Step 24
Using a Phillips screwdriver, detach the two screws, each measuring 1.3 mm, located on the inside top surface of the rear case.
Step 25
Using a Phillips screwdriver, detach the 1.2 mm screw that secures the mid-section logic board bracket.
Step 26
Detach the bracket securing the central portion of the logic board.
Step 27
Carefully leverage a spudger to detach the Lightning connector cable connector from its socket within the logic board.
Carefully retract the cable, ensuring it clears the logic board.
Carefully retract the cable, ensuring it clears the logic board.
Step 28
Using a SIM card eject tool or a carefully bent paperclip, push in the SIM card release located on the iPhone's right side to release the SIM card tray.
Using a spudger's flat end, gently push the SIM card eject lever inward.
Using a SIM ejection tool or a small, straightened paperclip, depress the release mechanism located on the side of the iPhone to extract the SIM card tray.
Using a spudger's flat end, gently push the SIM card eject lever inward.
Using a SIM ejection tool or a small, straightened paperclip, depress the release mechanism located on the side of the iPhone to extract the SIM card tray.
Step 29
Using the appropriate screwdriver, detach the logic board from the rear case by unscrewing the listed fasteners.
Use two Phillips head screws, each measuring 2.3 millimeters.
Use two screws, each measuring 2.7 millimeters in diameter.
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 employed; however, exercise heightened vigilance to prevent slippage and potential harm to nearby parts.
A 2.7-millimeter standoff screw, constructed from a non-magnetic material, is required.
To prevent issues with the digital compass, ensure the screw is reinstalled in its initial location on the logic board. Using a magnetized screw in this position can cause interference.
Use two Phillips head screws, each measuring 2.3 millimeters.
Use two screws, each measuring 2.7 millimeters in diameter.
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 employed; however, exercise heightened vigilance to prevent slippage and potential harm to nearby parts.
A 2.7-millimeter standoff screw, constructed from a non-magnetic material, is required.
To prevent issues with the digital compass, ensure the screw is reinstalled in its initial location on the logic board. Using a magnetized screw in this position can cause interference.
Step 30
To facilitate access, pivot the logic board assembly so that it faces the battery compartment at the rear of the device.
Leave the logic board assembly in place for now, as a single cable remains attached to its underside.
Securely attached to both the flash unit and the rear case is the flash surround; should it remain affixed to the rear case, carefully detach it using tweezers and reattach it to the flash unit.
During reassembly, ensure the lower interconnect cable remains free of the logic board to prevent damage or interference.
Leave the logic board assembly in place for now, as a single cable remains attached to its underside.
Securely attached to both the flash unit and the rear case is the flash surround; should it remain affixed to the rear case, carefully detach it using tweezers and reattach it to the flash unit.
During reassembly, ensure the lower interconnect cable remains free of the logic board to prevent damage or interference.
Step 31
Carefully lift the Wi-Fi antenna cable connector away from its socket on the logic board's underside, utilizing the pointed end of a spudger.
Step 32
Carefully detach the logic board assembly from the rear case.
To safeguard the logic board's delicate internal components from electrostatic discharge, position it on an anti-static mat during removal and handling.
To safeguard the logic board's delicate internal components from electrostatic discharge, position it on an anti-static mat during removal and handling.
Step 33 | Rear-Facing Camera
Using a Phillips screwdriver, detach the rear camera bracket from the logic board by unscrewing the two 1.1 mm fasteners.
Step 34
Detach the logic board's rear camera securing bracket.
Step 35
Carefully separate the rear camera's connector from the logic board by employing the flat edge of a spudger.
Step 36
Using a 5/32-inch hex key, carefully tighten the four M4x8 screws securing the fan assembly to the heatsink, ensuring a torque of 4.5 in-lbs to prevent damage.Carefully detach the rear camera module from the logic board.
If the flash surround is absent from your new component, detach it from the existing camera and install it onto the replacement part.
If the flash surround is absent from your new component, detach it from the existing camera and install it onto the replacement part.
Step 37 | Logic Board
Using a 5/32-inch hex key, carefully tighten the four M4x8 screws securing the fan assembly to the heatsink, ensuring a torque of 4.5 in-lbs to prevent damage.Employing the flat spudger tip, carefully separate the lower portions of the interconnect cables from their corresponding sockets located on the logic board.
Step 38
Using a 5/32-inch hex key, carefully tighten the four M4x8 pan head screws securing the fan assembly to the heatsink, ensuring a torque of 4 in-lbs to prevent damage.Disconnect the two cables that connect to the logic board.
Step 39
Using a 5/32-inch hex key, carefully tighten the four M4x8 screws securing the fan assembly to the heatsink, ensuring a torque of 4.0 to 5.5 inch-pounds is achieved to prevent damage.The circuit board, devoid of all components, is now visible.