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HMD Skyline Battery Replacement

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  1. HMD Skyline Battery Replacement, Prepare your phone for disassembly: crwdns2935265:01crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • 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 and completely power off your phone.

  2. HMD Skyline Battery Replacement, Separate the back cover: crwdns2935265:02crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement, Separate the back cover: crwdns2935265:02crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement, Separate the back cover: crwdns2935265:02crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • A screw‑driven camshaft in the bottom left corner pushes the back cover away from the phone, creating a gap to begin separating the cover.

    • With the back cover facing up, use a T3 Torx screwdriver to turn the screw in the bottom edge counterclockwise until the back cover pops up.

  3. HMD Skyline Battery Replacement: crwdns2935265:03crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement: crwdns2935265:03crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement: crwdns2935265:03crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Before separating the back cover, note the following:

    • There's a seam just under the back cover panel. Don't insert your tool here.

    • Insert your tool completely under the back cover, so it's between the frame and the underside of the back cover.

    • Insert an opening pick under the bottom left corner of the back cover and slide it along the bottom edge to release the clips and separate the adhesive.

    • You should feel and hear the back cover clips release. If you don't, insert the pick deeper and try again.

  4. HMD Skyline Battery Replacement: crwdns2935265:04crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement: crwdns2935265:04crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement: crwdns2935265:04crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Continue sliding the pick under the perimeter of the back cover to fully separate the clips and adhesive.

  5. HMD Skyline Battery Replacement, Remove the back cover: crwdns2935265:05crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement, Remove the back cover: crwdns2935265:05crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement, Remove the back cover: crwdns2935265:05crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Lift and remove the back cover.

    • During reassembly:

    • Now is a good time to test your phone before sealing it up. Power it on and check that it works. Power it back down before you continue reassembly.

    • If you're installing a new back cover:

    • Make sure you remove all liners from the underside.

    • Use the flat end of a spudger to press the small cable above the wireless charging coil into place over its alignment posts.

    • Place the back cover onto the frame and firmly squeeze around the perimeter to reengage all the clips.

  6. HMD Skyline Battery Replacement, Disconnect the battery: crwdns2935265:06crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 HMD Skyline Battery Replacement, Disconnect the battery: crwdns2935265:06crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Use a T3 Torx screwdriver to remove the two screws securing the battery connector cover.

  7. HMD Skyline Battery Replacement: crwdns2935265:07crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 HMD Skyline Battery Replacement: crwdns2935265:07crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Gently flip the graphite sheet on the battery over the top edge of your phone.

    • Be careful not to tear the sheet, as it's very delicate.

  8. HMD Skyline Battery Replacement: crwdns2935265:08crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement: crwdns2935265:08crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement: crwdns2935265:08crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Insert the point of a spudger in the notch on the left edge of the battery connector cover and pry up to release its clips.

    • Only insert your tool enough to pry up the cover. Otherwise, you may accidentally disconnect the rear camera press connector.

    • Remove the cover.

    • During reassembly, firmly press the cover into place to engage the clips.

  9. HMD Skyline Battery Replacement: crwdns2935265:09crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement: crwdns2935265:09crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement: crwdns2935265:09crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Insert the tip of an opening pick under the top edge of the battery press connector and pry up to disconnect it.

    • Check if the rear camera press connector got disconnected during the previous step. If it did, reconnect it.

    • To reconnect a press connector, align it over the socket and gently press down on one side until it clicks into place, then press down on the other side. It might take a few tries to align the connector.

  10. HMD Skyline Battery Replacement, Separate the battery adhesive: crwdns2935265:010crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement, Separate the battery adhesive: crwdns2935265:010crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement, Separate the battery adhesive: crwdns2935265:010crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • 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 right side of the battery.

  11. HMD Skyline Battery Replacement: crwdns2935265:011crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement: crwdns2935265:011crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement: crwdns2935265:011crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • 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.

    • Depending on the age of your phone and strength of the adhesive, you may need to apply constant, steady pressure to allow the adhesive to separate.

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

  12. HMD Skyline Battery Replacement: crwdns2935265:012crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 HMD Skyline Battery Replacement: crwdns2935265:012crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Use your fingers to peel the battery's plastic film from the frame.

  13. HMD Skyline Battery Replacement, Remove the battery: crwdns2935265:013crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Remove the battery and its film.

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

  14. HMD Skyline Battery Replacement, Remove the old battery adhesive: crwdns2935265:014crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement, Remove the old battery adhesive: crwdns2935265:014crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement, Remove the old battery adhesive: crwdns2935265:014crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Use a spudger to scrape up a corner of the old adhesive until you can grip it with a pair of tweezers.

    • Grip the adhesive with your tweezers and slowly peel it up.

    • To get a better hold on the adhesive, grip the tweezers close to the tips and twist them to roll the adhesive around the tweezers.

    • Repeat the process to peel up and remove all the old adhesive.

  15. HMD Skyline Battery Replacement: crwdns2935265:015crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 HMD Skyline Battery Replacement: crwdns2935265:015crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • When using isopropyl alcohol in the battery recess, you only need to apply a drop at a time. If you use too much, it may flow into the cutout near the top of the recess and damage the screen.

    • Use a few drops of highly-concentrated (more than 90%) isopropyl alcohol and a microfiber cloth to remove all the adhesive residue.

    • If you're having trouble, apply a drop of isopropyl alcohol and use the flat end of a spudger to scrape up the residue.

  16. HMD Skyline Battery Replacement, Apply your replacement adhesive: crwdns2935265:016crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 HMD Skyline Battery Replacement, Apply your replacement adhesive: crwdns2935265:016crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Before applying the new adhesive, it's helpful to see how it will be oriented in the battery recess.

    • Hold the replacement adhesive so the clear textured liner is on the bottom and place it into the battery recess to find the proper orientation.

  17. HMD Skyline Battery Replacement: crwdns2935265:017crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement: crwdns2935265:017crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement: crwdns2935265:017crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Remove the clear textured liner to expose the adhesive.

    • Carefully place the adhesive into the battery recess, using the white marks to align the top left and bottom right corners.

  18. HMD Skyline Battery Replacement: crwdns2935265:018crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement: crwdns2935265:018crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement: crwdns2935265:018crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Press down on the entire surface of the adhesive with your fingers to secure it in the recess.

    • Use the flat end of a spudger to press down and secure the edges of the adhesive.

  19. HMD Skyline Battery Replacement, Remove all the liners: crwdns2935265:019crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement, Remove all the liners: crwdns2935265:019crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement, Remove all the liners: crwdns2935265:019crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Use the pull tab on the top left corner to peel up and remove the large blue liner.

    • If any of the adhesive starts to peel up with the liner, gently lay it back down and use the flat end of a spudger to secure it.

  20. HMD Skyline Battery Replacement: crwdns2935265:020crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement: crwdns2935265:020crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement: crwdns2935265:020crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Use the pull tabs in the bottom left and top right corners to remove the two remaining red liners.

  21. HMD Skyline Battery Replacement, Adhere your battery: crwdns2935265:021crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement, Adhere your battery: crwdns2935265:021crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 HMD Skyline Battery Replacement, Adhere your battery: crwdns2935265:021crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Carefully hold the battery above its recess and reconnect the press connector—this ensures proper fit and alignment.

    • Firmly press the battery into its recess to secure it with the adhesive.

    • Return to your original repair manual and continue with reassembly.

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To reassemble your device, follow these instructions in reverse order, starting with this step.

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.

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