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はじめに

This guide will show you how to disassemble your Wave Beam aka Vibe Beam earbuds case and replace a dead battery.

Although a Vibe Beam case is shown, these steps should work with other JBL cases that use a similar design.

If you want to order a battery, it needs to be 3.7v and smaller than 10mm x 14mm x 40mm. This aliexpress listing should do the job:
https://www.aliexpress.com/item/10050097...

必要な工具と部品

手順1 Heat up the case

JBL Wave Beam Case Disassembly, Heat up the case: 手順 1、 1の画像 1

Open up your case and remove the earbuds. Prepare a heat gun at around 150℃, and gently heat up the front part of the case, around where the LED is.

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手順2 Insert a plastic pick

JBL Wave Beam Case Disassembly, Insert a plastic pick: 手順 2、 2の画像 1

JBL Wave Beam Case Disassembly, Insert a plastic pick: 手順 2、 2の画像 2

Now try to insert an opening pick into the seam as shown. If you can't get it in, try heating the case more or using a different pick.
Slide the pick around the edge of the case until it reaches the back, next to the hinge part. You can apply more heat here if this is too difficult.
Repeat with a second opening pick, going round the other side. The second image shows what your case should now look like.

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手順3 Lift out the internals

JBL Wave Beam Case Disassembly, Lift out the internals: 手順 3、 1の画像 1

Get an iFixit Plastic Lever Thingy™ and wedge it into the hinge area, as shown. Pull upwards to pop out the internals (as well as your picks - watch out!)
If this is too difficult, you might want to use a third pick, and pry around the area under the LED.

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手順4 Remove the electronics

JBL Wave Beam Case Disassembly, Remove the electronics: 手順 4、 2の画像 1

JBL Wave Beam Case Disassembly, Remove the electronics: 手順 4、 2の画像 2

You should now have removed the outer case. Remove the two Phillips #0 screws next to the exposed USB port.
Pull the motherboard directly upwards. Be gentle here, as it is still connected to the glued-down battery
Use a plastic tool to pry out the battery, it is attached to the case with a sticky pad. If you have isopropyl alcohol, apply some underneath the battery to loosen the adhesive.

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手順5 Desolder the battery

JBL Wave Beam Case Disassembly, Desolder the battery: 手順 5、 1の画像 1

The battery is connected to the motherboard with either 3 or 2 solder pads. Use a soldering iron and flux to remove all of them, being careful not to cause any shorts.

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手順6 Solder the new battery

Solder the black and red wires of your new battery to GND and BATT on the motherboard, respectively. If there is a third wire (temperature sensor) solder it to the NTC pad.

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