iPhone 12 Repair Manual © 2022 Apple Inc. All rights reserved.
iPhone 12 Contents Contents 3 Introduction Basics 6 Internal View 9 Screws 7 10 Orderable Parts Tools Safety 15 18 Battery Safety Broken Glass Procedures 20 21 First Steps SIM Tray 52 Camera 22 60 64 82 Display Speaker Battery Taptic Engine © 2022 Apple Inc. All rights reserved.
Introduction iPhone 12 Introduction This manual includes technical instructions for replacing genuine Apple parts in iPhone and is intended for individual technicians with the knowledge, experience, and tools required to repair electronic devices. Important • • • • Read the entire manual first. If you’re not comfortable performing the repairs as instructed in this manual, don’t proceed. Always use the latest version of this document available at support.apple.com/manuals/ repair+manual.
Introduction iPhone 12 Tools and parts Hardware tools Apple tools are designed to apply the appropriate heat, force, and torque during repairs, and to withstand high-volume professional use. • • • The heated display removal fixture softens adhesive to allow separation of the display from the enclosure. The fixture is used with a heated display pocket designed for the device’s specific dimensions.
Introduction iPhone 12 System Configuration requires a strong Wi-Fi network capable of 1.0 Mbps download and upload speeds, with less than 400 ms latency and less than 2% packet loss. Estimated data usage to run System Configuration is 6–22 MB. The device must be running the latest version of iOS and not a beta version. Learn how to initiate the System Configuration process at support.apple.com/self-service-repair.
iPhone 12 Internal View Internal View 1. TrueDepth camera assembly 10. Taptic Engine 3. Camera flex cable 12. SIM reader 2. 4. 5. 6. 7. 8. 9. Cameras Top battery adhesive tabs Battery Bottom battery adhesive tabs Speaker Lightning connector Bottom microphones © 2022 Apple Inc. All rights reserved. 11. Taptic Engine connector cowling 13. SIM reader connector cowling 14. Multi-Touch connector 15. Battery flex cable 16. Display connector 17. Dock flex cable 18.
iPhone 12 Orderable Parts Orderable Parts Name Numbers Screws Battery 661-17920 — Camera 661-17921 — Camera cowling 923-04989 923-05068 (4) upper left, middle, lower left, lower middle 923-05069 (1) upper middle Display 661-18503 LL661-18503 (U.S.
iPhone 12 Orderable Parts Name Numbers Screws Taptic Engine connector cowling 923-04977 923-04978 (2) Upper cowling 923-04985 923-04982 (3) upper right, lower left, lower right 923-04988 (1) upper left © 2022 Apple Inc. All rights reserved.
iPhone 12 Screws Screws • • Warning Never reinstall a screw after it has been removed. Install only new screws. iPhone screw grooves are covered in adhesive that can’t be reused. Use only the torque driver indicated to install new screws during reassembly. Both overtightened screws and loose screws can damage parts. Note: You can use any torque driver to remove screws.
iPhone 12 Tools Tools Tools with part numbers are available for purchase from the Self Service Repair Store. Tools without part numbers can be purchased from electronics supply retailers. 923-04877 6.1-inch back protective cover 923-04878 6.1-inch display protective cover 661-19620 6.1-inch heated display pocket 923-04908 6.1-inch repair tray 923-01092 Adhesive cutter 923-02657 Battery press Cut-resistant gloves 923-04911 Display adhesive press plate 661-08916 Display press © 2022 Apple Inc.
iPhone 12 ESD mat Tools ESD-safe cleaning solution ESD-safe tweezers ESD wrist strap with clip or plug Ethanol wipes1 661-17619 Heated display removal fixture Heat-resistant gloves IPA wipes 923-01290 Micro stix® bit Nitrile or lint-free gloves © 2022 Apple Inc. All rights reserved.
iPhone 12 Tools Sand2 Sand container3 923-02066 Super screw bit 923-0248 Torque driver (black, 0.35 kgf cm) kit4 923-00738 Torque driver (gray, 0.55 kgf cm) 923-00105 Torque driver (green, 0.45 kgf cm) 1 2 3 4 Ethanol wipes must contain at least 90% ethanol and no additives except isopropyl alcohol. Clean, dry, untreated sand (8–10 cups) Sand container (wide-mouthed, quick pour, nonbreakable plastic container with a flip-top lid) The black torque driver kit includes a black torque driver (0.
iPhone 12 Tools | Heated Display Removal Fixture Heated Display Removal Fixture Note: A rented heated display removal fixture may have different packaging than shown. If your fixture came with a USB cable, set the cable aside. This setup doesn’t require it. 1. Remove the fixture from the box. Then remove the packing Styrofoam. Caution Don’t lift the fixture by the knob. 2. Cut and remove the zip tie from the handle. © 2022 Apple Inc. All rights reserved.
iPhone 12 Tools | Heated Display Removal Fixture 3. Turn the top knob on the fixture counterclockwise to raise the suction cup. Remove the packing Styrofoam. 4. Turn the emergency stop knob clockwise until it clicks and protrudes from the stop guard. 5. Plug the power cord into the fixture. The fixture won’t turn on until you flip the switch on the back. © 2022 Apple Inc. All rights reserved.
iPhone 12 Battery Safety Battery Safety • • • • Warning This device contains a built-in lithium-ion rechargeable battery with soft battery cells. Battery safety is the number one concern when repairing a device with a built-in lithium-ion battery. Only technicians with the knowledge, experience, and tools required to repair electronic devices should replace a battery.
iPhone 12 Battery Safety Warning How to handle a battery thermal event A battery thermal event is a rapid chemical chain reaction that occurs inside a battery cell. The energy stored in the battery is released suddenly, which can cause outgassing and fire. A battery thermal event can be triggered by physical damage to the battery, improper replacement or repair, or temperatures outside the battery’s operating range.
iPhone 12 Battery Safety How to handle batteries Warning Fully discharge the battery before you begin a repair. A discharged battery is less susceptible to a battery thermal event. If you can’t determine the battery level, don’t repair the device. Perform the following steps to discharge the battery: • Disconnect all external cables. • Turn on the flashlight from the Lock Screen, in Control Center, or by asking Siri. Wait until the device has turned off and the flashlight is no longer illuminated.
iPhone 12 Broken Glass Broken Glass Warning iPhone displays and some back covers are made of glass. The glass could break if the iPhone is dropped on a hard surface, receives a substantial impact, or is crushed, bent, or deformed. Don’t attempt to remove chipped or cracked glass shards.
iPhone 12 Broken Glass If the iPhone has any of the following conditions, stop the repair: • There’s no glass or insufficient glass for the protective cover to adhere to. • The iPhone doesn’t fit in the heated display pocket. • The protective cover doesn’t adhere to the iPhone. You can find a service option at support.apple.com/repair. © 2022 Apple Inc. All rights reserved.
iPhone 12 First Steps First Steps Always perform the following steps before starting a repair: • Back up the iPhone. • Turn off the iPhone. • • • • • Discharge the battery fully. Disconnect all cables. Remove all cases and covers. Clear and clean your workspace. Put on an ESD wrist strap and attach it to a properly grounded ESD mat. Caution ESD (electrostatic discharge, or the release of static electricity) can damage electronic components.
iPhone 12 SIM Tray SIM Tray Tools • SIM-eject tool or paper clip Removal 1. Find your model to locate the SIM tray. 2. Insert a paper clip or SIM-eject tool into the hole next to the SIM tray. 3. Push the paper clip or SIM-eject tool toward the enclosure to eject the SIM tray. 4. Remove the SIM tray. Reassembly 1. Press the SIM tray back into the side of the enclosure. © 2022 Apple Inc. All rights reserved.
iPhone 12 Display | Before You begin Display Before You Begin • • Warning Read Battery Safety and follow workspace and battery handling guidelines before you begin. Read Broken Glass before you begin. Tools • 6.1-inch heated display pocket • Adhesive cutter • • • • • • • • • • • • 6.
iPhone 12 • • Display | Before You begin Caution To avoid damaging the lenses, don’t touch the TrueDepth camera assembly or nearby parts. Don’t touch the back of the display. Touching the back of the display may affect image quality. Important • • This procedure requires System Configuration. After you’ve completed all removal and reassembly steps, learn how to initiate the System Configuration process at support.apple.com/self-service-repair.
iPhone 12 Display | Removal Removal 1. Use a torque driver and the Torx security bit to remove the two security screws, one from each side of the Lightning connector. Set aside the screws. 2. Flip the switch on the back of the heated display removal fixture to turn it on. The internal fan will turn on. Wait for a checkmark to appear on the screen. Note: If an error code appears on the screen, turn off the fixture and turn it back on. © 2022 Apple Inc. All rights reserved.
iPhone 12 Display | Removal 3. Gently insert the iPhone into the heated display pocket with the display faceup and the Lightning connector facing the bottom of the pocket. Important Ensure that the clamp on the side of the pocket is flipped up. 4. Flip down the clamp on the side of the pocket to lock the iPhone into place. © 2022 Apple Inc. All rights reserved.
iPhone 12 Display | Removal 5. Put on the heat-resistant gloves. Align the cutout on the bottom of the pocket with the rail on the fixture. Slide the pocket with the iPhone onto the rail on the fixture. Warning Don’t insert the pocket into the fixture without wearing the heat-resistant gloves. © 2022 Apple Inc. All rights reserved.
iPhone 12 Display | Removal 6. Slide the pocket into the fixture until you hear the pocket click into place. Note: The screen on the fixture will turn red and the timer will count down from 2 minutes while the pocket heats to the correct temperature. When the timer ends, the fixture will start to beep and the screen will turn green. © 2022 Apple Inc. All rights reserved.
iPhone 12 Display | Removal 7. Turn the knob on the fixture clockwise to lower the suction cup as close to the iPhone as possible without touching the iPhone. Caution To avoid damaging the iPhone, don’t turn the knob before the timer beeps. Note: The fixture will beep until the suction cup is lowered. 8. Grasp the handle and slide the suction cup straight out until the edge of the suction cup aligns with the bottom edge of the display.
iPhone 12 Display | Removal 9. Turn the knob on the fixture clockwise to lower the suction cup onto the display (1). Then flip down the handle on the suction cup to secure the suction cup to the display (2). 10. Slowly turn the knob on the fixture counterclockwise until the display begins to separate from the enclosure. Important If you don’t see a gap between the display and the enclosure immediately, wait 30 seconds.
iPhone 12 Display | Removal 11. Insert the edge of the adhesive cutter between the display and the enclosure. Run the cutter between the display and the enclosure to the right and left as shown until the display partially releases from the enclosure. Caution To avoid damaging the flex cables, don’t tilt up the bottom of the display more than 5 degrees. © 2022 Apple Inc. All rights reserved.
iPhone 12 Display | Removal 12. Flip up the handle to release the suction cup (1). Gently slide the flat end of the black stick under the edge of the suction cup to release it from the display (2). Caution Don’t turn the knob. Turning the knob may damage the flex cables. 13. Press the eject button on the side of the pocket to release the pocket from the fixture. © 2022 Apple Inc. All rights reserved.
iPhone 12 Display | Removal 14. Hold both sides of the pocket and slide it straight out of the fixture. 15. Flip up the clamp on the side of the pocket to release the iPhone (1). Hold the area outlined in blue and gently remove the iPhone from the pocket (2). 16. Place the iPhone into the repair tray with the display faceup and the Lightning connector facing the cutout. Remove the gloves. © 2022 Apple Inc. All rights reserved.
iPhone 12 Display | Removal 17. Slide the display slightly toward the bottom of the iPhone. 18. Insert the edge of the adhesive cutter into the top of the iPhone between the display and the enclosure. Hold the adhesive cutter at a 45-degree angle. Start at the middle and cut along the top and sides of the iPhone until the display is free. Caution To avoid damaging the flex cables, don’t tilt up the bottom of the display more than 5 degrees. © 2022 Apple Inc. All rights reserved.
iPhone 12 Display | Removal 19. Insert the repair tray suction cups into the slots in the repair tray. 20. Tilt up the display toward the suction cups. Press the top and bottom edges of the display to secure it to the suction cups. • • Caution To avoid damaging the enclosure or display, ensure that the internal display clips are released before you tilt up the display. Don’t damage the flex cables as you tilt up the display.
iPhone 12 Display | Removal 21. Use a torque driver and the Micro stix bit to remove the two trilobe screws from the lower cowling. Set aside the screws. 22. Use ESD-safe tweezers to remove the lower cowling. Save the cowling for reassembly. © 2022 Apple Inc. All rights reserved.
iPhone 12 Display | Removal 23. Use a torque driver and the Micro stix bit to remove three trilobe screws from the upper cowling. Set aside the screws. 24. Hold the upper cowling in place and use a torque driver and the Micro stix bit to remove the last trilobe screw. Set aside the screw. 25. Use ESD-safe tweezers to remove the upper cowling. Save the cowling for reassembly. © 2022 Apple Inc. All rights reserved.
iPhone 12 Display | Removal 26. Use the black stick to lift the end of the battery flex cable off the connector. Caution You must disconnect the battery flex cable first to ensure that the iPhone remains turned off. 27. Use the black stick to lift the end of the display flex cable off the connector. © 2022 Apple Inc. All rights reserved.
iPhone 12 Display | Removal 28. Use the black stick to lift the end of the Multi-Touch flex cable off the connector. 29. Use the black stick to lift the end of the receiver flex cable off the connector. 30. Hold the display by the edges. Pull the tabs on the suction cups to release them from the display. Then set the display facedown on a clean, flat surface. 31. Remove the suction cups from the repair tray. © 2022 Apple Inc. All rights reserved.
iPhone 12 Display | Removal 32. Use ESD-safe tweezers to pick up the adhesive. Then pull the adhesive to remove it from the enclosure. Repeat this process until all the adhesive is removed from the perimeter of the enclosure. Caution Don’t touch the TrueDepth camera assembly, grounding springs, or nearby parts. 33. Use ethanol wipes or IPA wipes to clean any adhesive residue from the enclosure. Caution Don’t use ethanol wipes or IPA wipes on the display.
iPhone 12 Display | Reassembly Reassembly 1. Inspect the internal display clips for damage before reassembly. Ensure that the internal display clips are at a 90-degree angle and aren’t bent or damaged. Important • • If the internal display clips are damaged, you may need to replace the display. If you’re installing a replacement display, peel the protective liner from the top and underside of it. 2. Place the enclosure in the repair tray with the Lightning connector facing the cutout.
iPhone 12 Display | Reassembly 3. Inspect the TrueDepth camera. Ensure that the top edge of the TrueDepth camera is under the lip of the enclosure. Correct position Incorrect position Caution If the TrueDepth camera is positioned incorrectly, use the black stick to move it away from the grounding clip. Then insert the top edge of the TrueDepth camera under the lip of the enclosure.
iPhone 12 Display | Reassembly 4. Align the replacement display adhesive over the enclosure with the top holes over the TrueDepth camera assembly and the bottom tab on the right. Caution Ensure that you’ve removed all adhesive residue from the display and the enclosure before you apply the replacement display adhesive. 5. The replacement display adhesive has a top release liner, a middle release liner, and a bottom release liner. Grasp the tab on the bottom release liner.
iPhone 12 Display | Reassembly 6. Place the display adhesive press plate on top of the enclosure with the icon in the top right corner as shown. 7. Position the repair tray with the iPhone in the display press. Pull down the lever until the display press locks. © 2022 Apple Inc. All rights reserved.
iPhone 12 Display | Reassembly 8. Wait until the timer on the display press beeps. Pull down the lever (1) and pull out the release knob (2). Then lift the lever (3). © 2022 Apple Inc. All rights reserved.
iPhone 12 Display | Reassembly 9. Remove the repair tray from the display press and remove the press plate. 10. Remove the left section of the top release liner first (1). Then remove the three sections running along the top (2), right (3), and bottom (4). Important Don’t remove the middle release liner yet. Top release liner 11. Insert the suction cups into the repair tray. © 2022 Apple Inc. All rights reserved.
iPhone 12 Display | Reassembly 12. Align the left edge of the display with the left edge of the enclosure as shown. Gently press along the edges of the display to secure it to the suction cups. 13. Press the ends of the receiver flex cable (1), Multi-Touch flex cable (2), and display flex cable (3) to the connectors. Press evenly along the length of each connector. Note: The display flex cable covers the Multi-Touch flex cable. 14. Press the end of the battery flex cable to the connector (4).
iPhone 12 Display | Reassembly 17. The upper cowling has a tab near the second screw hole (2) that fits into a slot near the camera cowling. Use ESD-safe tweezers to fit the tab into the slot. Then lower the cowling over the end of the receiver flex cable. 18. Use the black torque driver and Micro stix bit to install four new trilobe screws into the upper cowling in the order shown. 19. Peel the first strip of the middle release liner (1) counterclockwise, starting near the bottom of the enclosure.
iPhone 12 Display | Reassembly 20. Inspect the display adhesive to ensure that it’s in the correct position and not damaged or wrinkled. If the adhesive is damaged, remove it and apply replacement adhesive. 21. Repeat step 3 to ensure that the TrueDepth camera is in the correct position. Then continue to step 22. Warning Inspect the enclosure for loose or extra screws and small parts, which can damage the battery and cause safety issues. 22.
iPhone 12 Display | Reassembly 24. Press all four corners of the display simultaneously. Then press along the edges of the display until you hear a click and the display is flush with the enclosure. Caution Ensure that the flex cables aren’t trapped between the display and the enclosure. Feel the edges of the display for variations or gaps. If the display isn’t flush, repeat all removal steps and check the flex cables for damage. Then repeat reassembly steps 1 through 24. © 2022 Apple Inc.
iPhone 12 Display | Reassembly 25. Position the repair tray with the iPhone in the display press. Pull down the lever until the display press locks. 26. Wait until the timer on the display press beeps. Pull down the lever (1) and pull out the release knob (2). Then lift the lever (3). © 2022 Apple Inc. All rights reserved.
iPhone 12 Display | Reassembly 27. Remove the repair tray from the display press. 28. Use the gray torque driver and Torx security bit to install two new security screws, one on each side of the Lightning connector. As you install the screws, press lightly on the display near the Lightning connector. Caution If the screws aren’t flush, remove and set aside the screws. Repeat step 28 to install another new set of screws. If the new screws still aren’t flush, repeat all removal and reassembly steps.
iPhone 12 Camera | Before You begin Camera Before You Begin Warning Read Battery Safety and follow workspace and battery handling guidelines before you begin. Remove the following part before you begin: • Display Tools • 6.1-inch repair tray • JCIS bit • • • • • • ESD-safe tweezers Micro stix bit Nitrile or lint-free gloves Nylon probe (black stick) Torque driver (green, 0.45 kgf cm) Torque driver (gray, 0.55 kgf cm) © 2022 Apple Inc. All rights reserved.
iPhone 12 • • Camera | Before You begin Caution To avoid damaging the lenses, don’t touch the TrueDepth camera assembly or nearby parts. Avoid the grounding springs on the camera cowling and enclosure. Important This procedure requires System Configuration. After you’ve completed all removal and reassembly steps, learn how to initiate the System Configuration process at support.apple.com/self-service-repair. © 2022 Apple Inc. All rights reserved.
iPhone 12 Camera | Removal Removal 1. Place the enclosure in the repair tray with the Lightning connector facing the cutout. 2. Use a torque driver and the JCIS bit to remove the crosshead screw from the camera cowling. Set aside the screw. 3. Use a torque driver and the Micro stix bit to remove the four trilobe screws from the camera cowling in the order shown. Set aside the screws. © 2022 Apple Inc. All rights reserved.
iPhone 12 Camera | Removal 4. Use ESD-safe tweezers to remove the camera cowling. Save the cowling for reassembly. 5. Use ESD-safe tweezers to gently lift the end of the top camera flex cable off the connector. Note: One camera flex cable covers the other. © 2022 Apple Inc. All rights reserved.
iPhone 12 Camera | Removal 6. Use ESD-safe tweezers to gently lift the end of the bottom camera flex cable off the connector. 7. Gently hold the flex cables together and lift the cameras out of the enclosure. © 2022 Apple Inc. All rights reserved.
iPhone 12 Camera | Reassembly Reassembly 1. Put on the gloves to prevent contamination of the camera lenses. Then hold the replacement cameras with the lenses facedown and remove the protective cover from the camera lenses. 2. Tilt down the cameras under the lip of the enclosure. Then lower the cameras into position. 3. Press the end of the bottom camera flex cable to the connector. 4. Press the end of the top camera flex cable to the connector. 5. Lightly press the cameras into the enclosure.
iPhone 12 Camera | Reassembly 6. The camera cowling has tabs that fit into slots under the lip on the right side of the enclosure. Hold the cowling with ESD-safe tweezers and slide the cowling tabs into the slots. Then lower the cowling onto the cameras. • • Caution Avoid touching the grounding spring as you reinstall the camera cowling. Ensure that the screw cutouts in the camera cowling align with the screw holes. A misaligned camera cowling may affect display image quality. © 2022 Apple Inc.
iPhone 12 Camera | Reassembly 7. Use the green torque driver and Micro stix bit to install four new trilobe screws into the camera cowling in the order shown. 8. Use the gray torque driver and JCIS bit to install one new crosshead screw into the camera cowling. Reinstall the following part to complete reassembly: • Display Important After you’ve completed all removal and reassembly steps, learn how to initiate the System Configuration process at support.apple.com/self-service-repair.
iPhone 12 Speaker | Before You begin Speaker Before You Begin Warning Read Battery Safety and follow workspace and battery handling guidelines before you begin. Remove the following part before you begin: • Display Tools • 6.1-inch repair tray • JCIS bit • • • ESD-safe tweezers Nylon probe (black stick) Torque driver (green, 0.45 kgf cm) © 2022 Apple Inc. All rights reserved.
iPhone 12 Speaker | Removal Removal 1. Place the enclosure in the repair tray with the Lightning connector facing the cutout. 2. Use a torque driver and the JCIS bit to remove the four crosshead screws from the speaker. Set aside the screws. 3. Use the black stick to tilt up the speaker. Then remove the speaker from the enclosure. © 2022 Apple Inc. All rights reserved.
iPhone 12 Speaker | Reassembly Reassembly 1. Rotate the repair tray. Ensure that the rubber gasket is positioned as shown. 2. If the rubber gasket is out of position, use ESD-safe tweezers to reposition it. © 2022 Apple Inc. All rights reserved.
iPhone 12 Speaker | Reassembly 3. Rotate the repair tray. Tilt down the bottom edge of the speaker and lower it into the enclosure. Caution Don’t damage the grounding springs on the speaker. 4. Use the green torque driver and JCIS bit to install four new crosshead screws into the speaker. Reinstall the following part to complete reassembly: • Display © 2022 Apple Inc. All rights reserved.
iPhone 12 Battery | Before You begin Battery Before You Begin • • Warning A battery should be replaced only by individual technicians with the knowledge and experience to repair electronic devices. Improper battery replacement, improper handling of parts, or failure to follow the provided instructions could result in fire, injury, data loss, or damage to the device, parts, or other property. Read Battery Safety and follow workspace and battery handling guidelines before you begin.
iPhone 12 Battery | Before You begin Caution To avoid damaging the lenses, don’t touch the TrueDepth camera assembly or nearby parts. Important This procedure requires System Configuration. After you’ve completed all removal and reassembly steps, learn how to initiate the System Configuration process at support.apple.com/self-service-repair. © 2022 Apple Inc. All rights reserved.
iPhone 12 Battery | Removal Removal 1. Place the enclosure in the repair tray with the Lightning connector facing the cutout. 2. Use a torque driver and the screw super bit to remove the super screw from the upper right corner of the Taptic Engine. Set aside the screw. © 2022 Apple Inc. All rights reserved.
iPhone 12 Battery | Removal 3. Use ESD-safe tweezers to grasp the bottom right battery adhesive tab. Gently peel the adhesive tab away from the battery. Note: The battery has four adhesive tabs. Warning Don’t scrape or puncture the battery with the tweezers. © 2022 Apple Inc. All rights reserved.
iPhone 12 Battery | Removal 4. Hold down the iPhone. Use ESD-safe tweezers to continue peeling the adhesive tab from the battery. Important Peel the adhesive tab completely from the battery before twisting it around the tweezers. © 2022 Apple Inc. All rights reserved.
iPhone 12 Battery | Removal 5. Keep the tweezers close and parallel to the battery and twist until you see white adhesive strip on the tweezers. Important Don’t pull the tweezers until the white adhesive is wrapped around them. 6. Pull the tweezers toward the bottom of the iPhone and continue to twist the adhesive strip until you’ve removed the entire strip. Caution Don’t pull the adhesive strip against parts or screws.
iPhone 12 Battery | Removal 7. Use ESD-safe tweezers to grasp the bottom left battery adhesive tab. Gently peel the adhesive tab away from the battery. 8. Repeat steps 4 through 6 to remove the bottom left adhesive strip from the battery. If you remove the entire strip, continue to step 9. Important • • Pull the bottom left adhesive strip away from the Taptic Engine. If the battery adhesive tab or strip breaks off and you can still see it, attempt to retrieve it with the tweezers.
iPhone 12 Battery | Removal 11. Hold down the iPhone. Use ESD-safe tweezers to grasp one battery adhesive tab. Then twist the tweezers to wrap the adhesive tab around them. Important Hold the tweezers close and parallel to the battery as you twist. 12. Keep the tweezers in the channel between the battery and the camera cowling. Continue to slowly twist the tweezers until you’ve removed the entire adhesive strip.
iPhone 12 Battery | Removal 13. Repeat steps 11 and 12 to remove the remaining battery adhesive strip from the top of the battery. If you remove the entire adhesive strip, continue to step 14. Important If the battery adhesive tab or strip breaks off and you can still see it, attempt to retrieve it with the tweezers. Wrap the tab or strip around the tweezers and repeat step 12. If you can’t see the tab or strip, continue to step 14. 14.
iPhone 12 Battery | Removal Caution When using the black stick to remove the battery from the enclosure, don’t damage the flex cables. Don’t scrape, rip, tear, or otherwise damage the polyester film or other areas. If damage occurs, replace the iPhone. 15. Insert the flat end of the black stick into one of the insertion points as shown. Ensure that the black stick is inserted into a point where the battery strip has been fully removed.
iPhone 12 Battery | Removal 16. Slightly lift the battery with the black stick just enough to grasp underneath the battery. Caution To avoid damage, don’t press the black stick on the edge of the enclosure as you lift the battery. 17. Remove the battery from the enclosure. Then inspect the enclosure for damage. If the enclosure is damaged, replace the iPhone. Warning If you can’t remove the battery, stop the repair. You can find a service option at support.apple.com/repair. © 2022 Apple Inc.
iPhone 12 Battery | Reassembly Reassembly 1. Use the gray torque driver and super screw bit to install one new super screw into the upper right corner of the Taptic Engine. 2. Reinstall the Speaker. 3. Use ethanol wipes or IPA wipes on the area shown in blue to remove any remaining adhesive from the enclosure. Caution Don’t use ethanol wipes or IPA wipes on the areas outlined in red. Ethanol or isopropyl alcohol may damage the polyester film and wireless charging unit.
iPhone 12 Battery | Reassembly 4. Peel the pink release liner from the underside of the replacement battery. Important Don’t remove the battery protective cover from the top of the battery yet. 5. Hold the battery over the enclosure with the protective cover faceup. Align the bottom of the battery with the speaker (1) and the left edge with the logic board (2). Then lower the battery into the enclosure. © 2022 Apple Inc. All rights reserved.
iPhone 12 Battery | Reassembly 6. The center of the repair tray has two slots. Position the repair tray and enclosure onto the battery press with the left slot over the pin as shown. 7. Flip down the red lever to lower the roller onto the battery. © 2022 Apple Inc. All rights reserved.
iPhone 12 Battery | Reassembly 8. Slide the repair tray back and forth through the battery press three times to adhere the battery to the enclosure. 9. Flip up the red lever. © 2022 Apple Inc. All rights reserved.
iPhone 12 Battery | Reassembly 10. Position the repair tray and enclosure onto the battery press with the right slot over the pin. 11. Flip down the red lever. © 2022 Apple Inc. All rights reserved.
iPhone 12 Battery | Reassembly 12. Slide the repair tray back and forth through the battery press three times to adhere the battery to the enclosure. 13. Flip up the red lever. © 2022 Apple Inc. All rights reserved.
iPhone 12 Battery | Reassembly 14. Remove the repair tray from the battery press. 15. Hold the edges of the protective cover. Pull the release tabs on the protective cover to remove the cover from the battery. Important Don’t press the area over the tab you’re releasing. Reinstall the following part to complete reassembly: • Display Warning Gently shake the iPhone. If the battery sounds loose, remove the display and the battery. Then complete battery reassembly with another replacement battery.
iPhone 12 Taptic Engine | Before You begin Taptic Engine Before You Begin Warning Read Battery Safety and follow workspace and battery handling guidelines before you begin. Remove the following parts before you begin: • • Display Speaker Tools • 6.1-inch repair tray • JCIS bit • • • • • • • • ESD-safe tweezers Micro stix bit Nylon probe (black stick) SIM-eject tool Super screw bit Torque driver (black, 0.35 kgf cm) Torque driver (gray, 0.55 kgf cm) Torque driver (green, 0.
iPhone 12 Taptic Engine | Removal Removal 1. Remove the enclosure from the repair tray. 2. Remove the SIM tray. 3. Place the enclosure in the repair tray with the Lightning connector facing the cutout. 4. Use a torque driver and the Micro stix bit to remove the two trilobe screws from the SIM reader connector cowling. Set aside the screws. 5. Use ESD-safe tweezers to remove the SIM reader connector cowling. Save the cowling for reassembly. 6.
iPhone 12 Taptic Engine | Removal 8. Use ESD-safe tweezers to lift the end of the SIM reader flex cable off the connector. 9. Use a torque driver and the Micro stix bit to remove the trilobe screw from the upper left corner of the SIM reader. Set aside the screw. © 2022 Apple Inc. All rights reserved.
iPhone 12 Taptic Engine | Removal 10. Use a torque driver and the super screw bit to remove the super screw from the lower right corner of the SIM reader. Set aside the screw. 11. Tilt up the SIM reader and lift it out of the enclosure. © 2022 Apple Inc. All rights reserved.
iPhone 12 Taptic Engine | Removal 12. Use a torque driver and the super screw bit to remove the two super screws from the corners of the Taptic Engine. Set aside the screws. 13. Use a torque driver and the JCIS bit to remove the crosshead screw from the bottom of the Taptic Engine. Set aside the screw. © 2022 Apple Inc. All rights reserved.
iPhone 12 Taptic Engine | Removal 14. Use ESD-safe tweezers to lift the end of the Taptic Engine flex cable off the connector. 15. Use ESD-safe tweezers to remove the Taptic Engine. © 2022 Apple Inc. All rights reserved.
iPhone 12 Taptic Engine | Reassembly Reassembly 1. Position the Taptic Engine in the enclosure. 2. Press the end of the Taptic Engine flex cable to the connector. © 2022 Apple Inc. All rights reserved.
iPhone 12 Taptic Engine | Reassembly 3. Use the green torque driver and JCIS bit to install one new crosshead screw into the Taptic Engine. 4. Use the gray torque driver and super screw bit to install two new super screws into the Taptic Engine. © 2022 Apple Inc. All rights reserved.
iPhone 12 Taptic Engine | Reassembly 5. Tilt the SIM reader into the enclosure. 6. Use the black torque driver and Micro stix bit to install one new trilobe screw into the upper left corner of the SIM reader. © 2022 Apple Inc. All rights reserved.
iPhone 12 Taptic Engine | Reassembly 7. Use the gray torque driver and super screw bit to install one new super screw into the lower right corner of the SIM reader. 8. Press the end of the SIM reader flex cable to the connector. 9. Position the SIM reader connector cowling (1) over the end of the flex cable. 10. Position the Taptic Engine connector cowling (2) over the end of the flex cable. Caution Inspect the grounding spring on the Taptic Engine connector cowling to ensure that it’s not damaged.
iPhone 12 Taptic Engine | Reassembly 11. Use the black torque driver and Micro stix bit to install four new trilobe screws into the SIM reader and Taptic Engine connector cowlings. Caution Avoid touching the grounding spring as you reinstall the Taptic Engine connector cowling. 12. Remove the enclosure from the repair tray. 13. Reinstall the SIM tray. Reinstall the following parts to complete reassembly: • • Speaker Display Micro stix® is a registered trademark of OSG CORPORATION.
