Step-by-step

1. 1

   Eject SIM Tray

   1 min

   Insert a SIM eject tool into the hole next to the card slot on the left edge of the phone. Push firmly until the tray pops out, then remove it completely.

2. 2

   Heat Back Cover

   2 min

   Apply heat to the edges of the back cover with a heat gun or hair dryer for about two minutes to soften the adhesive.

3. 3

   Insert Opening Pick

   2 min

   Press a suction cup near the bottom edge of the back panel and lift to create a small gap. Slide a thin plastic opening pick into the gap between the cover and the frame.

4. 4

   Slice Back Cover Adhesive

   4 min

   Slide the pick around all four edges of the device to cut through the perimeter adhesive. Carefully lift and remove the plastic back cover.

5. 5

   Unscrew Midframe Bracket

   4 min

   Use a Phillips screwdriver to remove all visible screws securing the upper protective plastic midframe cover.

6. 6

   Remove Midframe Cover

   2 min

   Gently insert a pry tool under the edge of the plastic midframe shield and pop it free from the phone frame.

7. 7

   Disconnect Battery Cable

   1 min

   Use a plastic spudger to pry the battery press connector straight up off the motherboard. Disconnecting power immediately prevents further short-circuiting.

8. 8

   Unplug Display and Interconnect Cables

   2 min

   Pry up the press-fit connectors for the main display flex cable and the sub-board interconnect ribbon.

9. 9

   Remove Motherboard Screws

   3 min

   Unscrew the remaining Phillips screws holding the motherboard assembly to the inner housing.

10. 10

    Lift Out Motherboard

    2 min

    Gently pry up the motherboard from its edges and lift it completely out of the chassis.

11. 11

    Unscrew Lower Speaker Assembly

    3 min

    Remove the Phillips screws securing the bottom loudspeaker cover over the sub-board.

12. 12

    Remove Sub-Board

    2 min

    Disconnect the coaxial antenna cable and pry the lower charging sub-board out of the housing.

13. 13

    Scrub Motherboard Corrosion

    10 min

    Submerge a soft-bristle toothbrush in 99% isopropyl alcohol and gently scrub all visible corrosion, mineral deposits, and liquid residue off both sides of the motherboard.

14. 14

    Clean Sub-Board and Connectors

    5 min

    Clean the USB-C port sub-board and all ribbon cable ends thoroughly using high-concentration isopropyl alcohol.

15. 15

    Inspect Board Traces

    5 min

    Examine the circuit boards under a magnifying glass for corroded connector pins, broken solder joints, or scorched components.

16. 16

    Dry Internal Components

    15 min

    Set the cleaned circuit boards on a lint-free towel and allow them to air dry completely in a well-ventilated area for at least two hours.

17. 17

    Reinstall Boards

    5 min

    Place the dried sub-board and main motherboard back into their respective slots in the phone chassis and tighten their retaining screws.

18. 18

    Reconnect Ribbon Cables

    3 min

    Snap the display, interconnect, antenna, and battery flex connectors securely back into their sockets.

19. 19

    Secure Rear Housing

    5 min

    Reattach the midframe cover with its screws, apply fresh adhesive along the perimeter, and press the back cover firmly onto the device.