iPhone 6 Volume Control Cable Replacement - iPhone 6

Step 1 | Pentalobe Screws

To prevent a fire hazard or explosion resulting from accidental puncture, ensure the lithium-ion battery's charge level is less than 25% prior to beginning any disassembly procedures on your iPhone.
Prior to starting the iPhone's disassembly process, ensure the device is completely de-energized.
Using a Pentalobe screwdriver, detach the two screws measuring 3.6 millimeters in length, positioned adjacent to the Lightning connector.

Step 2 | Anti-Clamp instructions

For those utilizing the Anti-Clamp tool, the following two actions detail its use to simplify the disassembly process; otherwise, proceed directly to the instructions three 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 clear the left or right side of the iPhone, then move them into place.
Secure two suction cups, one to the front surface and one to the rear surface of the iPhone, placing them close to the lower edge, directly above the home button.
Apply vacuum by pressing the cups firmly against the surface you intend to work on.
To improve the Anti-Clamp's grip on your iPhone if the exterior feels excessively smooth, apply adhesive tape to the device's surface.

Step 3

To secure the arms, advance the blue handle in its direction.
Rotate the handle fully, completing a 360-degree turn, observing for the initial expansion of the cups.
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 separation, reposition the handle by 90 degrees.
Allow the Anti-Clamp device to function and permit several seconds of inactivity following each incremental adjustment, limiting each rotation to a maximum of 90 degrees.

Step 4 | Manual Opening Procedure

Lacking an Anti-Clamp tool, secure the front panel with a single suction cup for lifting.
Position a suction cup directly on the display surface, situated slightly higher than the home button's location.
Ensure a leakproof connection by firmly applying pressure to the cup against the screen's surface.
To facilitate suction cup attachment when the display has severe cracking, apply a sheet of clear packing tape across the damaged area; as an alternative, a robust adhesive tape can be used directly in place of the suction cup. As a last resort, secure the suction cup to the fractured screen using superglue.

Step 5

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 rear enclosure.
Exercise caution and use steady, even pressure when installing the display assembly, as it requires a significantly tighter fit than typical device components.
Carefully separate the rear case from the display assembly by gently levering it downward with a plastic opening tool, maintaining upward traction on the display with the suction cup.
To release the front panel assembly from the rear case, carefully disengage the multiple retaining clips, which may require using both the suction cup and plastic opening tool in conjunction.

Step 6

To detach the suction cup, extend the plastic projection that maintains the airtight connection.
Detach the display assembly's suction cup.

Step 7 | Opening up the phone

Carefully detach the front panel assembly from the rear case by pivoting it outward, leveraging the phone's top edge as a fulcrum, starting at the home button end.
The front panel’s upper edge incorporates multiple clips that function as a partial hinge.
Ensure the clips, positioned directly beneath the rear case's upper border, are properly aligned before sliding the front panel upwards. The front panel's top edge should be perfectly level with the rear case's top edge upon completion.

Step 8

Carefully position the display at a roughly 90-degree angle, then secure it in a supported position to prevent movement during the repair process.
If a dedicated calibration tool isn't available, a factory-sealed can of soda, measuring 12 fluid ounces, can be substituted.
To avoid stressing the display's wiring during the repair process, secure it with a rubber band.

Step 9 | Removing the battery connector bracket screws

Using a Phillips screwdriver, detach the battery connector bracket by unscrewing the included fasteners.
A single screw, measuring 2.2 millimeters, is required.
A single screw, measuring 3.2 millimeters, is required.
Carefully note the location of every screw during disassembly, as reassembly requires that each one be placed in its original position to prevent potential damage to the device.

Step 10

Carefully detach the metal bracket securing the battery connector using a Tri-Point Y000 screwdriver.

Step 11 | Disconnecting the battery connector

Carefully lift the battery connector away from its corresponding socket on the logic board, employing a plastic opening tool to avoid damage.
To prevent damage, lift solely on the battery connector itself during removal; applying force to the logic board socket risks irreparable connector breakage.

Step 12 | Removing the front panel assembly cable bracket screws

Using a Phillips screwdriver, detach the cable bracket from the front panel assembly by unscrewing the five screws that hold it in place.
Use three screws, each measuring 1.2 millimeters.
A screw with a 1.7-millimeter head diameter is required.
A single screw with a diameter of 3.1 millimeters is required.
Improper screw installation during reassembly can result in irreversible harm to the iPhone's logic board.

Step 13

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

Step 14

When proceeding with the following four actions, ensure that lifting force is applied solely to the cable connectors themselves, avoiding any stress on the corresponding sockets mounted to the logic board.
Carefully detach the front camera and sensor cable connector from its socket using a spudger or similar tool.

Step 15

Carefully separate the home button cable connector from its socket using a spudger or similar tool.

Step 16

Carefully align the 4mm diameter dowel pins with their corresponding holes in both the upper and lower chassis halves, then gently press the two sections together until flush, ensuring no gaps remain and avoiding damage to the pins.
Prior to either detaching or reattaching the cable in this procedure, ensure the battery is disconnected.
Carefully separate the display data cable connector from its socket using a spudger or similar tool.
To avoid a blank screen or display lines after reassembly, ensure the display data cable remains securely attached to its connector; should this disconnection occur, restoring power by briefly disconnecting and reconnecting the battery connector will re-establish the connection.

Step 17

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; refer to the torque specification of 3.5 inch-pounds per screw.
Carefully detach the digitizer cable connector by inserting the flat end of a spudger between the connector and the device.
To avoid damaging the digitizer, ensure the connector is properly aligned when reattaching the digitizer cable; apply pressure to one end of the connector first, then to the other, rather than pressing on the connector's central area, as this could warp the component.

Step 18 | Separating front panel assembly and rear case

Carefully align the 4mm diameter dowel pins with their corresponding holes in both the upper and lower chassis halves, then gently press the two sections together until fully seated, ensuring no gaps are visible.
Detach the front panel assembly by disengaging it from the rear case.

Step 19 | Battery

Using a 5/32-inch hex key, carefully tighten the four M4x8 socket head cap screws securing the motor assembly to the frame, ensuring a torque of 4.5 Nm to prevent damage.
Carefully separate the adhesive securing the battery by lifting the bottom right corner of the battery's adhesive tab.
Exercise caution and avoid using sharp tools; accidental contact with the battery presents a fire hazard and potential release of hazardous materials.
To ease battery strip removal, you can detach the vibrator by disengaging the two Phillips screws that hold it in place, then raising the vibrator; this step is not required.

Step 20

Using a 5/32-inch hex key, carefully tighten the four M4x8mm screws securing the fan assembly to the heatsink, ensuring a torque of no more than 0.5 Nm to prevent damage.
To ensure proper removal, maintain the strips' flatness and prevent any creases, as folds can cause them to adhere and tear rather than detach smoothly.
Gently draw the adhesive strip, measuring approximately 1/8 inch in width, away from the battery and in the direction of the iPhone’s lower edge.
Exercise caution during removal to prevent damage to the adhesive strip by ensuring it does not catch on the vibrator or surrounding parts close to the battery.
Apply continuous, even force to the strip, ensuring it remains taut as it disengages from the space between the battery and the rear case; to optimize the process, limit the pulling angle to 60 degrees or less.
Expect the strip to extend significantly, potentially several times its initial size; if needed, reposition your grip closer to the battery as you continue to pull.
Should the pull tab fracture, gently attempt to recover the detached portion using tweezers, ensuring the battery remains undamaged, and proceed with pulling. If the strip breaks and becomes inaccessible beneath the battery, advance to the subsequent instructions.

Step 21

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.

Perform the same procedure on the remaining strip.
To prevent the battery from being ejected during strip removal, maintain consistent pressure on it while detaching the second strip.
Should the battery adhesive become detached and inaccessible, carefully introduce a small quantity of isopropyl alcohol—with a concentration exceeding 90%—beneath the battery's edge, specifically targeting the location of the fractured adhesive strip(s).
Allow approximately sixty seconds for the isopropyl alcohol to soften the adhesive securing the battery, then carefully separate the battery from the device casing using the spudger's flat edge.
To prevent damage, avoid using excessive force when removing the battery; if the adhesive resists, add additional alcohol droplets to loosen it. Ensure the pry tool does not puncture or bend the battery's structure during the separation process.
Applying force to the logic board can result in device damage.
To prevent damage to the volume control cable located beneath, avoid using the spudger in the space separating the volume down (-) button and the battery's top edge.
If the adhesive strips located beneath the battery are damaged or irretrievable, proceed to the following instructions.

Step 22 | Unstick the battery from the case

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 4.5 in-lbs to prevent damage.

To release a battery adhered to the rear case, apply heat using an iOpener or hair dryer to the area immediately behind the battery; the case surface should reach a temperature just above comfortable touch.
Carefully raise the battery from its position using a plastic opening tool, applying gentle pressure.
Exposure to excessive heat presents a fire risk for the iPhone's battery.
Should the battery adhere persistently to the rear enclosure, reposition the iPhone and carefully slide dental floss or durable string between the battery and the case. Gently work the floss or string back and forth with a sawing action to release the adhesive bond.
For cleaning between teeth, a 0.009 inch diameter E string from a 12-string guitar set can be used as a more durable substitute for traditional floss.

Step 23 | Removing the battery

Using a 5/32-inch hex key, carefully tighten the four M4x8mm screws securing the fan assembly to the heatsink, ensuring a torque of 4.5 in-lbs to prevent damage.

Disconnecting the iPhone's internal battery requires careful attention to avoid damage; therefore, proceed to detach it.
Carefully slide the protective plastic covering off the new battery, ensuring you don't snag or damage the ribbon cable during removal.
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 guarantee correct positioning within its designated space, briefly plug the battery connector back into the logic board's 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 secure a battery lacking factory-applied adhesive, follow the instructions detailed in this guide for adhesive strip replacement.
Following reassembly, execute a factory reset to mitigate potential problems and streamline any subsequent diagnostic procedures.

Step 24 | Volume Control Cable

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.
Using a Phillips #00 screwdriver, detach the upper cable bracket by unscrewing the included fasteners.

A single screw, measuring 2.9 millimeters, is required.
A screw with a 2.2 mm head diameter is required.

Step 25

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.
Detach the iPhone’s upper cable securing bracket.

Step 26

Using a Phillips #00 screwdriver, detach the four screws securing the contact bracket.

A screw with a 1.5 mm head diameter is required.
A screw with a 1.4-millimeter head diameter is required.
Use two screws, each measuring 2.1 millimeters.

Step 27

Carefully detach the contact bracket, a component vital for electrical connection, from the iPhone.

Step 28

Employing the flat spudger tip, carefully disengage the volume control cable connector from its socket.
To avoid irreversible harm, apply lifting force solely to the connector itself, ensuring the logic board socket remains undisturbed.

Step 29

Using a Phillips #00 screwdriver, detach the screws securing the volume control cable brackets.

Use two screws, each measuring 2.3 millimeters.
A screw with a diameter of 1.8 millimeters is required.

Step 30

To gain access to the button covers, detach the brackets securing the hold switch and volume control button from the rear case.

Step 31

Using a 5/32-inch hex key, carefully tighten the four M4x8 screws securing the fan assembly to the heatsink, ensuring a torque of no more than 4 in-lbs to prevent damage.
Carefully lift the volume control button cable away from the rear case, commencing at the connector.
Exercise caution and avoid forceful movements while separating the delicate cable sections from the enclosure.
Disconnect the cable connecting the volume control button to the rear case.