iPhone 16 Battery Replacement

• To optimize battery health, ensure the charge level drops to a minimum of 75% remaining.A fully charged lithium-ion battery presents a risk of safety incidents.
• Disconnect all wires and cords connected to the device.
• Simultaneously press and maintain the power button and one of the volume buttons, then slide your finger across the device to initiate the power-off sequence.

• To prevent injury and simplify the repair process when the display or rear glass exhibits severe cracking, apply multiple layers of packing tape across the damaged surfaces.
• Ensure a flat surface, approximately the size needed to accommodate a suction cup, exists close to the lower border.

Employ a 3/8-inch socket wrench to loosen the retaining bolt, ensuring you apply a torque of 15-20 ft-lbs and wear safety glasses to protect your eyes from potential debris.Use a P2 driver with a pentalobe bit.Using appropriate tools, detach the two screws, each measuring 7.7 mm in length, located on both sides of the charging port.

• To prevent potential injury, always observe the specified safety precautions.Excessive insertion of the opening pick may result in device damage.
• Using a permanent marker, indicate the location of a 3 mm measurement on the opening pick, starting from its tip.
• Alternative corner markings, using the same measurement tools, can be applied to the remaining corners of the pick.
• To create a makeshift tool, affix a coin to the end of a pick, positioning it 3 millimeters from the tip.

• Employ a 3/8-inch socket wrench to loosen the retaining bolt, ensuring you apply consistent torque to prevent damage to the threaded stud and avoid exceeding the 25 Nm specification.Utilize a device designed to emit warm, directed airflow, typically employing a heating element and fan, to dry hair; ensure the appliance's wattage is appropriate for the intended application and observe all safety precautions outlined in the manufacturer's documentation.orApply warmth with a device capable of producing directed heat, ensuring it can reach temperatures sufficient to soften adhesives and loosen components, but avoiding exceeding 200°C to prevent damage to surrounding materials.Apply heat to the lower perimeter of the rear glass panel until its surface reaches a temperature that is comfortable to touch.
• Alternatively, employ anUse the iOpener.Employ heat to the rear glass panel, adhering to the subsequent steps for correct iOpener application.

• Using a suction handle, secure it firmly to the lower edge of the rear glass panel.
• Using one hand to stabilize the frame, apply firm, consistent upward pressure to the handle, generating a separation between the back glass and the frame.
• Using a specialized opening tool, carefully slide its tip into the separation.

• During the subsequent steps of separating the rear glass, limit the depth of your tool's insertion to avoid damaging underlying components.Three millimeters.Exercise caution to prevent harm to these components.
• Located adjacent to the volume down button, a fragile cable links the rear glass assembly to the device; exercise caution and refrain from inserting any tools in this area to prevent cable damage.
• The phone's internal design incorporates several spring-loaded electrical contacts arranged circumferentially.

Employ a 3/8-inch socket wrench to loosen the retaining bolt, ensuring you maintain a firm grip and avoid over-torquing the fastener to prevent damage to the threads, and then carefully detach the component.Utilize a device designed to emit warm, directed airflow, ensuring the unit's wattage is no greater than 1500W and its cord is undamaged, to gently warm the component.orApply heat using a tool designed to generate warm air, ensuring the temperature does not exceed 200°F (93°C).Apply heat to the right side of the rear glass panel until its surface temperature is high enough to be felt as hot when touched.

• Avoid pushing the tool past the specified depth.Three millimeters.Exercise caution to prevent harm to the spring contacts.
• Using a pick, carefully work your way along the bottom right edge, extending the tool toward the volume down button to break the adhesive bond and free the metal clip.
• To prevent damage to the wireless charging cable, ensure you do not move the device across the volume buttons.
• As the part moves past, listen and feel for the audible and tactile indication of the metal clip disengaging.
• Maintain the pick's position within the gap to stop the adhesive from bonding shut.

Apply heat to the left side of the rear glass panel using a hair dryer or heat gun, ensuring the surface reaches a temperature that is comfortable to touch.

• Avoid pushing the tool beyond the specified depth.Three millimeters.Exercise caution to prevent harm to the spring contacts.
• Position another opening pick near the lower extremity.
• Using the second pick, carefully work it along the left side of the screen, starting at the bottom left corner, to loosen the adhesive and disengage the metal clips.
• As the clips slide past, you will notice and sense them detaching.
• Maintain the pick's position in the upper left corner to obstruct adhesive re-bonding.

Apply heat evenly along the upper perimeter of the rear glass panel using a hair dryer or heat gun, continuing until the surface is warm enough to be comfortably held.

• Avoid pushing the tool beyond the specified depth.Three millimeters.Exercise caution to prevent harm to the spring contacts.
• Using a second opening pick, carefully work along the top edge of the device, starting at the top left corner, to break the adhesive bond and disengage the metal clips; a distinct click and slight movement will indicate clip release.
• Using a pick, carefully maneuver along the upper right edge until the Action button is located.
• Maintain the tool's position within the gap to stop the adhesive from bonding shut.

• Carefully ensure the rear glass is completely detached from the frame; if resistance is encountered, re-examine the edges using your pick to release any remaining adhesive or trapped clips.
• Carefully pivot the rear glass cover away from the device's right side to release the bonding adhesive.
• Use a rigid, non-contaminating tool to provide backing for the rear glass panel.
• Before proceeding with the repair, discard the shipping securing pins.

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.Use a Y000 tri-point screwdriver.Detach the pair of fasteners.Screws measuring 1 millimeter in lengthAffix the cover panel over the central connector, ensuring it is properly aligned and fastened.

• Using a screwdriver, carefully position the tip at the designated location.Use a plastic pry tool, often referred to as a spudger, to avoid scratching surfaces.Position the component within one of the two openings located on the central connector cover.
• Moving the cover to the left side of the device disengages a retaining hook located on the logic board, allowing it to be removed.
• Detach the protective housing.

• Carefully insert the tip of a screwdriver to depress.Use a plastic pry tool to gently separate.Use a prying tool to release and separate the battery press connector.

• Carefully employ the tip of a screwdriver to apply pressure.Use a plastic pry tool, often referred to as a spudger.Release the connector securing the wireless charging coil, then use prying action to detach the coil.

• Carefully detach the rear glass component from its surrounding frame, then completely separate it.

• Carefully lift the metallic seal located along the lower edge using a specialized opening tool or a thoroughly cleaned fingernail.Carefully disconnect the battery, observing proper polarity and ensuring no shorts occur during removal, then safely store it away from flammable materials..

• Connect the power cable into the receptacle.Use the VoltClip.Carefully insert the connector on the s barrel into the USB-C elbow.
• Ensure the connector remains disconnected.Use the VoltClip.Before connecting to power, ensure the alligator clips are not contacting one another, as this could result in an electrical short.

• Connect the red alligator clip to the silver tab.

• Connect the black alligator clip to the grounding screw.

• Prevent the red alligator clip from making contact with any unintended metal objects.
• Allow 90 seconds for the adhesive to release by plugging a USB-C cable that provides power into the USB-C elbow connector.

• Carefully detach the USB-C connector from the elbow joint.
• Remove the alligator clips by detaching them from their connections.

Ensure the adhesive is completely released; should the battery remain fixed, apply heat with the alligator clips for one more minute before attempting removal.
Firmly grasp the metallic tab.Carefully raise the battery until it clears the frame's retaining features.
Employing a suction handle is another option for battery removal; should resistance be encountered, avoid applying excessive force and instead repeat the preceding procedure.

You have successfully disassembled the device; the following instructions detail the reassembly procedure.
To ensure a secure connection, position the connector precisely above its receptacle and apply even pressure, initially on one side with a fingertip or spudger, followed by the opposite side, until you hear a distinct click. Avoid applying excessive force; if the connector doesn't seat properly, realign it and attempt the connection again.

Carefully remove substantial remnants of the battery adhesive from the iPhone frame using tweezers.

• Position the discarded battery, ensuring the adhesive side is exposed, adjacent to the replacement battery.
• Before securing the battery, apply a small amount of the adhesive to its surface to evaluate the necessary application method.
• Expect variations in the appearance of your adhesive product and its backing material.
• Carefully peel away the uppermost protective layer from the battery contact surface of the adhesive.
• Carefully peel away the single protective liner from the battery contact area of the adhesive.

1. To ensure proper placement, keep the removed battery as a reference and gently apply pressure with your finger to secure the fresh adhesive to the replacement battery.
2. Verify that the new adhesive's location matches the original adhesive's location.
3. To reposition, gently lift the adhesive layer and reapply.
4. After ensuring the replacement adhesive's positioning mirrors the original and its properties are compatible, apply firm pressure to secure it to the battery.

Before proceeding, ensure the protective liner is completely detached from the battery adhesive surface.

Apply the adhesive to the battery surface, ensuring full contact by pressing firmly.

Carefully bend the conductive tab forward, positioning it over the battery's front surface, then apply firm pressure to secure it.

Carefully remove the adhesive backing from the battery adhesive strip, exposing the adhesive surface intended for the iPhone.

• Position the battery above its designated area within the iPhone, ensuring proper alignment, but avoid fully seating it at this stage.
• Confirm correct battery positioning by engaging the battery press connector with a spudger or fingertip.

• Carefully position the battery within its designated compartment inside the iPhone, ensuring it is fully seated while the connection remains active.
• Carefully position the battery, then apply gentle, even pressure with your fingertips until it is fully seated.

Employ a 3/8-inch socket wrench to loosen the retaining bolt, ensuring you apply consistent pressure to prevent damage to the threaded shaft and observe the torque specification of 12 Nm as indicated in the service manual; failure to do so could result in component failure.Use a plastic pry tool to gently separate.To prevent short circuits while reassembling the iPhone, manually break the battery connection using your finger.

• Exercise caution to prevent any harm to the spring contacts during the cleaning process.
• Before finalizing the phone's reassembly, verify the repair's functionality by temporarily connecting the battery and back glass, then activating the device to confirm expected operation. Following this test, deactivate the phone, detach the battery and back glass, and proceed with the remaining assembly steps.
• To eliminate the challenging removal of adhesive and any resulting residue from your phone, use a hair dryer or heat gun to gently warm the area if you encounter difficulty.
• Carefully insert the tip of the tool into.Use a plastic pry tool, often referred to as a spudger.Apply firm, even pressure while smoothing the adhesive with a rolling motion until it reaches a consistency allowing for manipulation using tweezers.

Carefully remove the adhesive securing the phone using tweezers.
Continue alternating between the preceding two procedures until all traces of the adhesive have been eliminated.

• To maintain the iPhone's water resistance, meticulously remove all traces of any remaining material from the frame.
• Using a spudger's tip covered with a microfiber or lint-free cloth, carefully apply a small quantity of high-concentration isopropyl alcohol.Exceeding 90% is acceptable.Apply the adhesive evenly across the fabric surface.
• Using a cloth, remove adhesive residue by wiping along the frame's edge, maintaining a consistent direction.
• Allow several minutes for any remaining alcohol to fully dissipate before continuing the repair.

• Discard this procedure if you intend to reinstall the existing rear panel.
• Carefully dispense a small quantity of isopropyl alcohol with a high concentration to the area.Exceeding 90% is unacceptable.Using a microfiber or lint-free cloth, clean the edges of the rear glass to ensure a clean surface for the new adhesive application.
• Carefully restore any bent retaining clips on the rear glass to their original position using manual pressure.

• Position the new adhesive on the frame, ensuring the wider blue protective liner faces inward and the removal tab is located in the lower-right area.
• Variations in liner color and the placement of pull tabs are possible on the adhesive material.
• Carefully align the adhesive by referencing the camera opening and edge indentations.

• Starting at the lower edge, gently lift the pull tab to initiate separation of the adhesive backing, exposing only a portion of the adhesive surface; avoid complete liner removal.

• Because the adhesive bonds immediately upon contact, any repositioning attempts will require complete removal and replacement with fresh adhesive.
• Grasp theEmploy a blue-colored protective lining.Carefully move the component aside and position the adhesive strip so it’s flush with the iPhone’s lower border.
• Carefully position the adhesive's lower edge within the frame's designated slot, ensuring precise alignment of the iPhone’s spring contacts with the corresponding openings in the liner.

• As you remove the adhesive backing, ensure firm contact with the iPhone's frame edges.
• Proper alignment of the adhesive's lower edge ensures the side and top edges seat correctly; if misalignment occurs, discard the adhesive and repeat the process using fresh material.
• Should the adhesive strip be incorrectly positioned and a replacement isn't immediately available, the iPhone can be reassembled and used as usual without the adhesive; however, be aware that the device's water resistance will be reduced until replacement adhesive is applied.

Employ the tool's planar edge.Use a plastic pry tool, often referred to as a spudger, to avoid scratching surfaces.Ensure the adhesive makes full contact with the frame's edges by applying even pressure around its entire circumference.
Avoid contact with the spring terminals extending through the pink liner.

Gently lift the top-right corner using the integrated pull tab to detach.A pink-colored adhesive backing layer.

• After peeling away the uppermost protective covering, you will find three thin liners layered above the adhesive, each featuring a pull tab positioned close to the lower border.
• The location of the retaining tabs can vary.
• Should the pull tabs be missing, it's possible the thin liners were unintentionally discarded during the prior step; if the adhesive remains clean and correctly positioned, continue with caution, avoiding any contact with the exposed adhesive until back glass installation.

• To prevent damage, secure the iPhone's rear glass on its right side with a stable support, such as a small, rigid box, while working.
• Employ the tool's straight, planar edge.Use a plastic pry tool, often referred to as a spudger.To establish an electrical connection between the charging coil and the connector, apply pressure with your finger.

• Employ the tool's straight, planar edge.Use a plastic pry tool to gently separate.Establish electrical contact between the battery and the circuit using a finger.

• Align the connector cover so that its two hooks are positioned slightly left of the corresponding slots on the logic board, then apply downward pressure while moving the cover to the right, ensuring both hooks fully engage within their slots.

• Employ a 3/8-inch socket wrench to securely tighten the fastener to a torque of 15 Nm, ensuring the specified value is not exceeded to prevent damage to the component.Use a Y000 tri-point screwdriver.Secure the pair using the specified fasteners.Screws measuring 1 millimeter in lengthAffix the middle connector cover, ensuring it is properly aligned and fastened.

• Carefully position the replacement back glass over the device, ensuring its edges match the contours of the frame.
• Carefully align the glass with the frame's edges, then apply even pressure until the retaining clips click into place.
• Apply even pressure along the edges of the rear glass to secure all retaining clips.

• Using a heat gun, warm the perimeter of the rear glass to facilitate adhesive adhesion.Use a specialized device designed for electronics opening, often referred to as an iOpener, to gently apply heat around the perimeter of the device's casing.Apply heat evenly across the back glass’s edges using a hair dryer or heat gun until the surface reaches a temperature you can comfortably touch. Then, apply consistent pressure around all edges of the glass.
• To ensure a strong adhesive bond, utilize screen vise clamps if available; otherwise, proceed with the following alternative methods for securing the replacement back glass.

Ensure uniform pressure during iPhone reassembly and secure the rear glass to the frame by carefully considering the camera module's protrusion.
Using the iPhone's original packaging, if available, position the box lid on a level surface; otherwise, proceed to an alternative procedure.

• Position the iPhone, camera lens facing upward, within the box's lid, ensuring the camera bump aligns with the designated indentation.
• Using an object approximately the dimensions of a standard iPhone in footprint, but exceeding the box's side height, create a stable platform by placing it atop the iPhone and then adding several weighty items.
• Allow the items to remain undisturbed for a minimum of thirty minutes; reduce the duration if the objects are heavier. For optimal results, maintain the stacked position overnight.

Lacking the original packaging, use the subsequent three steps to apply uniform pressure across the rear glass.
Position the iPhone on a level, non-abrasive surface with the display facing downward.

• To prevent damage to the rear glass's surface, affix masking tape across its exterior.

• To ensure proper adhesion along the perimeter, position two coin-like objects, or items of comparable thickness, directly onto the adhesive tape, aligning them with the rear glass edges.
• Arrange the coins so their thickness matches or exceeds the height of the camera protrusion.

• Apply downward pressure evenly across the iPhone’s surface by placing a load of at least the equivalent weight of several books on top of it.
  To avoid marking or damaging delicate surfaces, use only inexpensive materials as a base.
• Allow the items to remain undisturbed for a minimum of thirty minutes; reduce the wait time proportionally to the objects’ weight, and for optimal results, leave them stacked for an entire night.

• Employ a 5/32-inch hex key to tighten the retaining screw to a torque of 6-8 inch-pounds, ensuring that the adjustment knob is securely fastened and preventing unintended movement.Use a P2 driver with a pentalobe tip.Secure the pair using the specified fasteners.Screws measuring 7.7 millimeters in length.Flanking the charging port are components on both the left and right sides.