HMD Skyline Loudspeaker Replacement

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Follow this guide to replace the loudspeaker in your HMD Skyline smartphone.

You might need to replace your loudspeaker if it makes distorted or crackling noises, has static, or produces no sound at all.

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.

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.

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.

Continue sliding the pick under the perimeter of the back cover to fully separate the clips and adhesive.

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.

Use a T3 Torx screwdriver to remove the two screws securing the battery connector cover.

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.

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.

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.

Insert the tip of a spudger under the center of the loudspeaker's top edge and lift to release its clips.
Don't pry against the battery, and be very careful not to puncture it with your tool.