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Apple iPhone 12 Pro Battery Replacement

Battery Replacement guide for the Apple iPhone 12 Pro

Moderate
~38 min
19 steps

Before you begin

Tools

  • P2 Pentalobe screwdriver
  • Y000 Tri-point screwdriver
  • Suction cup handle
  • Opening picks
  • Plastic spudger
  • Tweezers
  • Heating pad or hair dryer

Parts / materials

  • Replacement battery for iPhone 12 Pro
  • Pre-cut battery adhesive strips
  • Waterproof display adhesive frame seal
  • 90%+ Isopropyl alcohol

Safety

  • Discharge the battery below 25% before starting to reduce thermal runaway risks.
  • Wear protective safety glasses to prevent injury from chipped glass.
  • Do not puncture, bend, or crush the lithium-ion battery during removal.
  • Keep screw layout organized to prevent puncturing internal components with incorrect screw lengths.

Overview

# Apple iPhone 12 Pro Battery Replacement Repair Guide Action-specific battery replacement walkthrough for the Apple iPhone 12 Pro. About 38 minutes across 19 steps. This DIY guide walks through battery replacement on the Apple iPhone 12 Pro (iPhone series phone). Before you open the device, confirm the exact model number on the Apple settings screen or rear housing so your replacement part matches the iPhone 12 Pro specifically—not a similar iPhone sibling. Most DIY techs finish this Apple iPhone 12 Pro battery replacement in about 38 minutes when parts and tools are ready. Difficulty is rated intermediate for this model. Recommended tools for this Apple iPhone 12 Pro job: P2 Pentalobe screwdriver, Y000 Tri-point screwdriver, Suction cup handle, Opening picks, Plastic spudger, Tweezers, Heating pad or hair dryer. Parts and supplies: Replacement battery for iPhone 12 Pro, Pre-cut battery adhesive strips, Waterproof display adhesive frame seal, 90%+ Isopropyl alcohol. Power the iPhone 12 Pro off completely, remove SIMs/SD cards if present, and work on a clean, well-lit surface with a magnetic mat for screws. If a step feels wrong for your Apple iPhone 12 Pro, stop and compare the connector layout to the photos in this guide. When you prefer a same-day pro repair in Seattle instead, LML Repair can handle battery replacement for this model with tested parts and a workmanship warranty.

Step-by-step

  1. 1

    Unscrew bottom pentalobe screws

    2 min

    Power off the iPhone completely. Remove the two 6.8 mm P2 Pentalobe screws located on either side of the Lightning port.

  2. 2

    Heat bottom display edge

    2 min

    Apply heat to the bottom edge of the phone for two minutes using a hair dryer or heat pad to soften the display adhesive.

  3. 3

    Attach suction cup

    1 min

    Place a suction cup on the lower third of the display assembly, just above the lightning port.

  4. 4

    Create initial opening

    2 min

    Pull up on the suction cup with firm, steady pressure to create a small gap between the screen panel and the outer frame.

  5. 5

    Insert opening pick

    1 min

    Insert an opening pick into the small gap created along the bottom edge of the screen.

  6. 6

    Slice bottom adhesive

    2 min

    Slide the pick along the bottom edge of the phone to cut through the seal holding the display.

  7. 7

    Slice left side adhesive

    2 min

    Slide the pick carefully up the left edge of the screen to release the side adhesive strips.

  8. 8

    Slice top and right adhesive

    3 min

    Continue sliding the pick around the top edge and down the right side of the frame to free all remaining adhesive.

  9. 9

    Open display like a book

    1 min

    Gently swing the display open from the right side, leaning it against a box or wall so as not to strain the ribbon cables.

  10. 10

    Unscrew display connector bracket

    2 min

    Remove the two Y000 Tri-point screws securing the metal cover bracket over the battery and display connectors.

  11. 11

    Remove connector bracket

    1 min

    Use precision tweezers to lift and remove the metal cover bracket from the logic board.

  12. 12

    Disconnect battery cable

    1 min

    Pry the battery connector straight up from its logic board socket using the flat end of a plastic spudger.

  13. 13

    Disconnect display cables

    3 min

    Disconnect the OLED display, digitizer, and front sensor assembly cables from the board using a spudger.

  14. 14

    Separate screen assembly

    1 min

    Lift the display assembly completely away from the rear enclosure and place it in a safe area.

  15. 15

    Expose battery pull tabs

    2 min

    Use tweezers to peel back the black adhesive tips on the four stretch-release tabs at the top and bottom of the battery.

  16. 16

    Pull adhesive strips

    5 min

    Slowly pull each stretch tab flat and parallel to the housing until the adhesive strip comes out completely.

  17. 17

    Remove original battery

    3 min

    Lift the old battery out of the frame; apply a few drops of isopropyl alcohol underneath if any residual glue holds it down.

  18. 18

    Install new battery adhesive

    2 min

    Apply new pre-cut adhesive strips onto the back of your replacement battery, removing the protective liner.

  19. 19

    Seat replacement battery

    2 min

    Press the new battery firmly into place in the rear housing, aligning the connector briefly to ensure proper position.

After your Apple iPhone 12 Pro battery replacement

Power the iPhone 12 Pro back on and test the battery replacement function before you put every screw away. Check touch/display response, charging, cameras, buttons, and wireless as relevant to this repair. If something fails after closing the device, reopen carefully and reseat the connectors for this Apple iPhone 12 Pro job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.

Keep learning

Explore more Apple iPhone 12 Pro repair context in the encyclopedia, or open related DIY guides.

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