Introduction

Follow this guide to replace a dead or worn-out battery in your HMD Pulse Pro smartphone.

Your phone's lithium-ion battery has a limited lifespan. If your phone dies quickly and doesn't hold a charge, it may be time to replace the battery.

If your battery is swollen, take appropriate precautions.

  1. amt5Vje6BeuotsUv
    • Let your phone's battery drain below 25% before starting this repair. A charged lithium‑ion battery may catch fire if damaged.

    • Unplug all cables from your phone and completely power it down.

  2. sdvvnF1bXJwJwQaX
    sdvvnF1bXJwJwQaX
    rgcQO1FgW2KkZEJb
    SuAbPuX6MmAGRS1P
    • Firmly press a SIM eject tool, bit, or straightened paper clip into the SIM card tray hole on the left edge of your phone until the tray ejects.

    • Remove the SIM card tray.

    • During reassembly, use the tray's markings to orient and reinsert it properly.

  3. 1CSt2OQlhintMYfI
    1CSt2OQlhintMYfI
    BXJflHpYJrgZKVVb
    • Insert the tip of an opening pick between the back cover and frame, at the SIM card tray cutout.

  4. QZGFsbTBats3rxun
    QZGFsbTBats3rxun
    Ycu4coIPYCQTQtB2
    CUN53yHCNHp3LYyP
    • Position the opening pick straight down and slide it along the left edge to begin unclipping the back cover.

  5. wKmFbnySTIAkMe3k
    wKmFbnySTIAkMe3k
    cx51TXPlNX2yTRfg
    pI2L3EdMc5ktHYFA
    • Continue sliding the pick around the perimeter of your phone until the back cover is fully unclipped.

    • The corners can be tricky to unclip and may take some force. If you're having trouble, try prying up with the pick.

    • Don't try to fully remove the cover yet, as a delicate cable still connects it to your phone.

  6. VgyOMHJZGGi1ciIC
    VgyOMHJZGGi1ciIC
    bJAS13uVyGuYIJU2
    tksSLEagPKBXaflJ
    • Carefully flip your phone over so the back cover is facing up.

    • Lift the back cover off the frame and flip it over the left edge of your phone, laying the cover flat on your work surface.

    • Be very careful not to strain the back cover's delicate cable.

    • During reassembly, place the back cover onto the frame and firmly squeeze around the perimeter to reengage all the clips.

  7. IC3CW4xgpDF5RWTB
    IC3CW4xgpDF5RWTB
    HutodbbbIVumoGF2
    • Be very careful not to puncture the battery with your screwdriver.

    • Use a Phillips screwdriver to remove the nine 3.6 mm‑long screws securing the motherboard cover.

    • The screw near the center of the top edge is covered by a sticker. Pierce through it with your screwdriver, or use tweezers to remove it.

  8. 6umKvBVOrdMlkBwn
    6umKvBVOrdMlkBwn
    fOrZDobZAFELtvpU
    mhpGg2EVudRtTVNB
    • Insert an opening pick between the right edge of the motherboard cover and frame.

    • Twist the pick to fully unclip the cover.

  9. UsI2ej14SmDE5Xb4
    UsI2ej14SmDE5Xb4
    cVtxISurU2FvlM2e
    • Remove the motherboard shield and its connected graphite sheet.

    • During reassembly, set the motherboard shield into place and press down firmly around the perimeter to reengage the clips.

  10. wcFpiyyYOLJmLK2V
    wcFpiyyYOLJmLK2V
    abFeGexYYU5RQNqt
    • Use the flat end of a spudger to pry up and disconnect the battery press connector from the bottom edge of the motherboard.

    • To reconnect these type of connectors, align the connector over its socket and press down with your fingertip—first at one side, then the other—until it clicks into place. Don't try to force the connector into place, or you may permanently damage it.

  11. ucQj3ErgPIlQsrPd
    ucQj3ErgPIlQsrPd
    P4pLyExcJJPkhxc6
    • Use the flat end of a spudger to pry up and disconnect the back cover press connector from the bottom edge of the motherboard.

  12. LgGrDvTVHL2wENYu
    • Remove the back cover.

  13. pyDVksOUK6RMa1An
    pyDVksOUK6RMa1An
    V4SqkDVLiqxm4FTG
    yGlQBm6tXG2WBvXH
    • Be very careful not to bend, crease, or puncture the battery during the next few steps. A damaged battery can leak dangerous chemicals and catch fire.

    • Use your fingers to carefully peel the three plastic tabs from the left side of the battery.

  14. aQyfVuDZWNqHS2iM
    aQyfVuDZWNqHS2iM
    lEhEOhCSTOLMoIQQ
    oHNB65i161iJADMj
    • With one hand, fold the clear outer tabs out of the way of the battery and firmly hold them down to secure the frame.

    • If you're having trouble with the tabs, you can fold them under the phone and tape them to the screen.

    • With your free hand, grip the green center pull tab and pull straight up to fully separate the battery adhesive.

    • Lay the battery over the right edge of your phone.

  15. yaOEZEPxln3IuNhA
    yaOEZEPxln3IuNhA
    mutfpNsbXwN5gmaV
    • Use your fingers to peel the battery's plastic film from the frame.

  16. soHPv6nmmoGfsyqB
    soHPv6nmmoGfsyqB
    JgdEWSLYUtXfrhKy
    • Remove the battery and its film.

    • During reassembly:

    • Never reuse a deformed or damaged battery, as it's a potential safety hazard. Replace it with a new battery.

    • Use a spudger and tweezers to peel up and remove the two pieces of battery adhesive.

    • Apply the new adhesive to the frame and remove the plastic liners.

    • Firmly press the battery into its recess so the cable is on the top edge and the three tabs are on the left edge.

Conclusion

To reassemble your device, follow these instructions in reverse order.

For optimal performance, calibrate your newly installed battery after reassembling your phone.

Take your e-waste to an R2 or e-Stewards certified recycler.

Repair didn’t go as planned? Try some basic troubleshooting, or ask our Answers community for help.

Spencer Day

Member since: 14/09/22

88286 Reputation

One comment

Is there a video?

Tung Nguyen -