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LG V20 Mini Battery Replacement

Battery Replacement guide for the LG V20 Mini

Moderate
~39 min
24 steps

Before you begin

Tools

  • Phillips #00 screwdriver
  • Heat gun or iOpener
  • Suction cup
  • Opening picks
  • Plastic spudger
  • Plastic opening card
  • SIM eject tool

Parts / materials

  • Replacement battery
  • Pre-cut battery adhesive strips
  • Rear cover adhesive gasket
  • Isopropyl alcohol (90%+)
  • Microfiber cloth

Safety

  • Discharge the battery below 25% prior to repair to minimize thermal run-away risk.
  • Wear eye protection when heating and prying glass panels.
  • Do not use metal pry tools against the battery casing to prevent punctures or short circuits.

Overview

# LG V20 Mini Battery Replacement Repair Guide Action-specific battery replacement walkthrough for the LG V20 Mini. About 39 minutes across 24 steps. This DIY guide walks through battery replacement on the LG V20 Mini (V Series series phone). Before you open the device, confirm the exact model number on the LG settings screen or rear housing so your replacement part matches the V20 Mini specifically—not a similar V Series sibling. Most DIY techs finish this LG V20 Mini battery replacement in about 39 minutes when parts and tools are ready. Difficulty is rated intermediate for this model. Recommended tools for this LG V20 Mini job: Phillips #00 screwdriver, Heat gun or iOpener, Suction cup, Opening picks, Plastic spudger, Plastic opening card, SIM eject tool. Parts and supplies: Replacement battery, Pre-cut battery adhesive strips, Rear cover adhesive gasket, Isopropyl alcohol (90%+), Microfiber cloth. Power the V20 Mini 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 LG V20 Mini, 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

    Power Down the Device

    1 min

    Press and hold the power button, then tap Power Off to turn off the phone completely before beginning.

  2. 2

    Eject the SIM Tray

    1 min

    Insert a SIM eject tool into the small hole on the card tray and press firmly to eject it.

  3. 3

    Heat the Rear Cover

    2 min

    Apply a heated iOpener or heat gun to the edges of the rear cover for two minutes to soften the adhesive.

  4. 4

    Attach a Suction Cup

    1 min

    Place a suction cup near the bottom edge of the rear panel and pull upward to create a slight gap.

  5. 5

    Insert an Opening Pick

    1 min

    Slide an opening pick into the seam created between the rear glass cover and the side frame.

  6. 6

    Slice Bottom Adhesive

    2 min

    Slide the opening pick along the bottom edge to slice through the adhesive holding the cover.

  7. 7

    Slice Side Adhesive

    2 min

    Guide opening picks along the left and right sides to separate the remaining perimeter adhesive.

  8. 8

    Remove Rear Cover

    1 min

    Gently lift the rear panel off the phone frame and place it safely aside.

  9. 9

    Unscrew Midframe Screws

    3 min

    Use a Phillips #00 screwdriver to remove all visible screws securing the internal midframe shield.

  10. 10

    Pry Off Midframe Shield

    2 min

    Insert the flat end of a spudger under the edge of the plastic midframe shield and lift it away.

  11. 11

    Disconnect Battery Connector

    1 min

    Pry the battery press connector straight up from the motherboard using a plastic spudger.

  12. 12

    Apply Adhesive Remover

    1 min

    Apply a few drops of high-concentration isopropyl alcohol along the edges of the battery well.

  13. 13

    Wait for Adhesive to Soften

    2 min

    Allow the alcohol to soak for two minutes to weaken the glue beneath the battery.

  14. 14

    Insert Plastic Opening Card

    1 min

    Slide a thin plastic opening card under the side edge of the battery cell.

  15. 15

    Pry Up the Battery

    2 min

    Gently pry upward with the card to detach the battery from the chassis without bending it.

  16. 16

    Clean Battery Well

    2 min

    Wipe away leftover adhesive residue from the battery compartment using isopropyl alcohol and a cloth.

  17. 17

    Apply New Battery Adhesive

    2 min

    Peel the protective backing off new adhesive strips and press them firmly into the battery recess.

  18. 18

    Install New Battery

    1 min

    Align the new battery in the well and press down lightly to secure it to the adhesive.

  19. 19

    Reconnect Battery Flex

    1 min

    Position the battery press connector over its motherboard socket and snap it into place.

  20. 20

    Reattach Midframe Shield

    2 min

    Set the plastic midframe back onto the phone chassis and press until it clips firmly into position.

  21. 21

    Fasten Midframe Screws

    3 min

    Reinstall all Phillips #00 screws to hold the internal frame and motherboard components secure.

  22. 22

    Apply Back Cover Adhesive

    2 min

    Lay down fresh pre-cut adhesive strips around the perimeter edges of the phone frame.

  23. 23

    Reinstall Rear Cover

    2 min

    Align the glass rear panel with the frame and press firmly along all edges to form a tight seal.

  24. 24

    Reinsert SIM Tray

    1 min

    Slide the SIM tray back into its slot on the side frame until flush with the body.

After your LG V20 Mini battery replacement

Power the V20 Mini 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 LG V20 Mini job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.

Keep learning

Explore more LG V20 Mini repair context in the encyclopedia, or open related DIY guides.

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