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iPhone 5 Wi-Fi Antenna Replacement

This document details the procedure for detaching the Wi-Fi antenna from an iPhone 5.

Step 1 | Taping the display glass

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Begin the process by carefully disconnecting the 12-volt battery, ensuring you wear appropriate safety glasses and gloves, then use a 10mm wrench to loosen and remove the negative terminal clamp, followed by the positive terminal clamp secured with a 8mm wrench, taking care to avoid any sparking.
To avoid injury and stop the cracked display glass from shattering further while you work, secure it with tape.
Apply clear packing tape in successive layers across the iPhone screen, ensuring complete coverage of the display surface.
To safeguard your eyes from potential glass fragments released during the repair process, always use safety glasses.

Step 2 | Remove the Pentalobe screws

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Using a 5/32-inch hex key, carefully loosen the four retaining screws securing the fan assembly to the motor housing; exercise caution to avoid damaging the plastic fan blades during this process.
To prevent potential fire or explosion hazards during repair, ensure the iPhone's lithium-ion battery is depleted to less than 25% capacity 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

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Using a 5/32-inch hex key, carefully loosen the four screws securing the fan assembly to the motor housing; be aware that the screws may be tight, and excessive force could damage the housing.
Carefully lift the display assembly—consisting of a glass screen, a plastic bezel, and integrated metal clips—from within the phone's housing during the subsequent procedures.
Ensure complete removal of the display assembly, irrespective of the chosen tool.
When separation between the glass and plastic is observed, mirroring the depiction in the initial image, use a plastic opening tool to insert it into the gap between the plastic frame and the phone’s metal chassis, carefully levering each metal clip free from its housing.
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

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Using a 5/32-inch hex key, carefully tighten the set screw located on the motor shaft to a torque of 3.5 inch-pounds; ensure the key is fully seated to prevent damage to the screw head.
For those utilizing the Anti-Clamp tool, the following two steps illustrate its use to simplify the disassembly process; otherwise, proceed two steps further to follow an alternative procedure.
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.
Carefully place a suction cup on the front of the iPhone, close to the lower edge and directly over the home button, and another suction cup on the rear of the device in a similar location.
Apply vacuum by pressing the cups firmly against the surface you intend to work on.
To improve the Anti-Clamp's adherence if the iPhone's exterior feels excessively slick, apply adhesive tape to the device's surface.

Step 5

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Carefully align the 4mm hex key to the setscrew, ensuring it engages fully, then gradually tighten the setscrew to a torque of 1.5 Nm using the torque wrench.
To secure the arms, advance the blue handle in the direction indicated.
Rotate the handle fully, completing a full 360-degree turn, observing for the initial signs of cup expansion.
Maintain parallel positioning of the suction cups; should misalignment occur, gently release the suction cups' grip and reposition the arms.
Once sufficient space is created by the Anti-Clamp, slide a prying tool beneath the display.
To ensure adequate separation, increase the heat applied to the area and then rotate the handle 90 degrees.
Allow one minute of inactivity after each adjustment, limiting each rotation to a maximum of 90 degrees, enabling the Anti-Clamp feature and time to facilitate the process.

Step 6 | Manual Opening Procedure

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Position a suction cup directly on the display surface, situated slightly higher than the home button's location.
Ensure the entire cup makes contact with 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 cracked glass display, carefully smoothing them to eliminate air pockets.

Step 7 | Start lifting the front panel assembly

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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 back cover.
Exercise caution and use steady, even pressure when installing, 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 traction with a suction cup.
To release the front panel assembly from the rear case, carefully disengage the multiple retaining clips, which may require alternating use of the suction cup and plastic opening tool.

Step 8 | Detaching the front panel side clips

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Carefully work a prying tool around the front panel assembly's edges to release the retaining clips on both the left and right sides.

Step 9 | Opening up the phone

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Disconnecting the front panel assembly entirely from the rear case is not recommended; several ribbon cables remain connected at the top of the iPhone.
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 pulling force.
Carefully position the display at a 90-degree angle, then secure it in a supported position to prevent movement 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

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Using appropriate tools, detach the two screws that fasten the metal bracket holding the battery connector to the logic board.
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

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Using a precision screwdriver, detach the metal bracket securing the battery connector.

Step 12 | Disconnecting the battery connector

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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 prevent displacement of the tiny components positioned near the socket.
Exercise extreme caution when releasing the battery connector, focusing the lifting force solely on the connector; applying pressure to the logic board socket or the board itself risks socket damage or harm to adjacent components.

Step 13 | Removing the front panel assembly cable bracket screws

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Detach the cable bracket that holds the front panel assembly wires 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.
Due to its non-magnetic properties, this screw requires a regular screwdriver for removal; avoid losing it and ensure it's correctly replaced, as a magnetized screw can disrupt the compass's functionality.

Step 14 | Removing the front panel assembly cable bracket

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To release the display cable bracket, move it upwards, in the direction of the battery, then detach it and take it away from the iPhone.
To reassemble, position the bracket outward and secure it by engaging the left-hand hooks with the logic board.

Step 15 | Disconnecting the front panel assembly cables

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Prior to either detaching or reattaching the cables in this procedure, ensure the battery's power is completely isolated.
Carefully detach the three front panel assembly cables by gently separating them using a plastic opening tool or your fingernail.
The assembly connecting the front camera and its associated sensor
Connect the display panel's flat, ribbon-like cable, ensuring proper alignment and secure attachment to the connector, being mindful of its delicate nature and the specified orientation.
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 upon powering on. To resolve this, reattach the cable securely and restart the device; for a complete reset, disconnect and reconnect the battery.

Step 16 | Separating front panel assembly and rear case

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Detach the front panel assembly from the rear case.

Step 17 | Lifting the battery

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Gently lift the battery away from its adhesive backing by grasping the visible, transparent plastic tab.
Should the battery prove difficult to separate or the attached tab fracture during removal, carefully introduce a small amount of isopropyl alcohol with a concentration exceeding 90% beneath the battery's edge.
Allow approximately one minute for the isopropyl alcohol to soften the adhesive bond, then carefully separate the battery from the device casing using an opening tool applied to its perimeter.
To avoid damage, do not use excessive force when removing the battery. If the adhesive is still holding, add additional alcohol drops to help release it. Ensure the pry tool doesn't bend, break, or penetrate the battery casing during the process.
To prevent damage, ensure any residual alcohol solution is completely removed by wiping with a clean cloth or permitting full evaporation prior to battery installation.
To aid in battery separation, apply warmth to the iPhone’s rear case with an iOpener or hair dryer, which will loosen the adhesive bond.
Exposure to excessive heat presents a fire hazard due to the lithium-ion battery within the iPhone.

Step 18 | Prying up the battery

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Carefully lift the battery from its compartment using the plastic opening tool, focusing exclusively on the outer perimeter of the device; avoid applying force to any other area, particularly in the vicinity of the logic board, as this could cause damage.
Gently increase the application of isopropyl alcohol until the battery releases from its housing.
To prevent battery damage and potential fire risk, carefully release the battery from its housing, applying consistent, even pressure.
Avoid forcing anything against the battery's upper edge, as this could damage the volume control cables.

Step 19 | Removing the battery

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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 complete system reset to proactively avoid potential problems and streamline any subsequent diagnostic procedures.

Step 20 | Logic Board Assembly

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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

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Using appropriate tools, 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.
  • Use a Phillips screwdriver to remove a single screw with a 2.3 mm head.

Step 22

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Carefully detach the bracket, located at the logic board's uppermost edge.
Carefully avoid damaging the small grounding tab, positioned on the bracket adjacent to the rear camera.
Depending on the model, the bracket might be integrated with the camera housing, preventing full removal.

Step 23

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Carefully separate the three listed cables from the logic board by gently prying with the flat spudger tip.
  • The cable connecting to the upper circuit board.
  • The flexible wiring harness connecting the button panel.
  • Carefully release the securing clips and detach the interconnect cable from its connector.

Step 24

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Using a Phillips screwdriver, detach the two screws, each measuring 1.3 mm, located on the interior top surface of the rear case.

Step 25

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Using a Phillips screwdriver, detach the 1.2 mm screw securing the mid-section logic board bracket.

Step 26

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Detach the bracket securing the central portion of the logic board.

Step 27

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Carefully leverage a spudger to lift the Lightning connector cable connector away from its socket on the logic board.
Carefully retract the cable, ensuring it clears the logic board.

Step 28

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Using a SIM card eject tool or a straightened paperclip, push in the SIM card release located on the iPhone's right side to release and remove 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

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Using the appropriate screwdriver, detach the logic board from the rear case by unscrewing the listed fasteners.
Use two Phillips screws, each measuring 2.3 mm.
Use screws with a 2.7 mm diameter.
To detach standoff screws, utilize a standoff screwdriver or a compatible bit.
If a specialized 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 interference with the digital compass, ensure the screw is reinstalled in its initial location on the logic board.

Step 30

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Pivot the logic board assembly so that it faces the battery compartment located on the rear case.
Leave the logic board assembly in place for now, as a single cable remains attached to its lower surface.
To secure the flash surround, ensure it’s properly attached to both the flash unit and the rear case; if it’s only affixed to the rear case, carefully detach it using tweezers and reposition it onto the flash unit.
During reassembly, ensure the lower interconnect cable remains free of the logic board, preventing it from being positioned beneath.

Step 31

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Carefully lift the Wi-Fi antenna cable connector away from its corresponding socket on the logic board's underside, employing the pointed end of a spudger.

Step 32

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Carefully detach the logic board assembly from the rear case.
To safeguard the delicate internal components, place the logic board on an anti-static mat during removal and handling, ensuring it's properly grounded.

Step 33 | Vibrator

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Detach the vibrator bracket and motor assembly from the rear case by unscrewing the listed fasteners.
  • A Phillips-head screw, measuring 2.3 millimeters, is required.
  • Use a Phillips screwdriver to remove a single screw measuring 1.7 millimeters.
  • A single Phillips screw, measuring 1.6 mm, secures the rear case at its top edge.

Step 34

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Detach the vibrator bracket and motor assembly from the rear case.

Step 35 | Wi-Fi Antenna

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Carefully lift the Wi-Fi antenna away from the rear case, beginning at its connection point, utilizing the broad, flat edge of a spudger.

Step 36

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Detach the Wi-Fi antenna, ensuring it is disconnected from the rear case.
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