Only the power button assembly remains.

If your replacement power button assembly doesn't come with a power button bracket, you'll need to reuse the original bracket.

Use a pair of tweezers to remove any leftover adhesive on the power button bracket.

Apply pre-cut adhesive to secure the power button cable to the power button bracket.

Make sure to align the power button cable's holes with the two pegs on the power button bracket to ensure a proper fit.

If there's any alcohol solution remaining in the device, carefully wipe it off or allow it to air dry before installing your power button assembly.