Step-by-step

1. 1

   Power Off the Phone

   1 min

   Turn off the Motorola G84 immediately to prevent electrical short circuits. Do not attempt to charge or power on the device while wet.

2. 2

   Eject the SIM Tray

   1 min

   Insert a SIM eject tool into the hole next to the card slot on the left edge. Pull the SIM tray completely out of the phone.

3. 3

   Heat the Back Panel

   3 min

   Apply heat to the edges of the rear cover for 2 to 3 minutes using a heat gun set to low. This softens the adhesive holding the back panel in place.

4. 4

   Slice the Back Cover Adhesive

   5 min

   Attach a suction cup near the bottom edge and pull upward to create a small gap. Insert a plastic opening pick into the gap and slide it along the perimeter to cut the adhesive.

5. 5

   Remove the Back Cover

   2 min

   Gently lift the back cover off the chassis. Set the rear panel aside in a dry area.

6. 6

   Unscrew the Plastic Midframe

   4 min

   Remove all Phillips #000 screws securing the plastic midframe to the phone's housing. Keep the screws organized by location.

7. 7

   Unclip the Midframe

   3 min

   Insert the flat edge of a spudger between the midframe and the outer housing. Pry gently around the edges to release the plastic clips and lift the midframe off.

8. 8

   Disconnect the Battery Cable

   1 min

   Use a plastic spudger to pop the battery connector straight up off the motherboard. Disconnecting power immediately prevents further galvanic corrosion.

9. 9

   Disconnect Display and Ribbon Cables

   3 min

   Pry up the press connectors for the display flex cable, sub-board interconnect cable, and touch panel from the mainboard.

10. 10

    Remove the Motherboard

    3 min

    Disconnect the coaxial antenna cables using tweezers. Lift the main logic board out of the phone frame gently.

11. 11

    Remove the Daughterboard

    2 min

    Unplug the lower ribbon connector and remove the sub-board containing the charging port and microphone from the bottom of the housing.

12. 12

    Clean Boards with Isopropyl Alcohol

    8 min

    Submerge the motherboard and sub-board in 99% isopropyl alcohol. Scrub off any mineral deposits and corrosion gently using a soft-bristled brush.

13. 13

    Dry Components thoroughly

    15 min

    Blow away excess liquid using compressed air, then allow all circuit boards to air-dry completely for at least 2 hours in a well-ventilated area.

14. 14

    Inspect Board Components

    4 min

    Use a magnifying glass to check for remaining residue, corrosion, or burnt surface-mount components before reassembly.

15. 15

    Reinstall Circuit Boards

    3 min

    Place the main motherboard and lower sub-board back into their respective slots inside the phone chassis.

16. 16

    Reconnect Flex Cables and Battery

    4 min

    Snap the antenna, display, and interconnect cables onto the circuit boards, then connect the battery press connector last.

17. 17

    Reattach the Midframe

    4 min

    Align the midframe over the phone and press down firm until the clips snap shut. Reinstall all Phillips screws tightly.

18. 18

    Seal the Back Panel

    4 min

    Apply new adhesive tape to the perimeter of the phone housing, align the back cover, and press firmly along the edges to seal.