Difficulty
Moderate
Steps
7
Time Required
10 - 15 minutes
Sections
3
- Front Plate
- 3 steps
- Motherboard
- 3 steps
- Battery
- 1 step
Flags
0
BackJabra CRUISER2
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Introduction
What you need
Step 1
Front Plate
- Use the iOpener tool to unglue the adhesive of the device. The link to the iOpener instructions are listed below.
- iOpener Instructions
Use the iOpener tool to unglue the adhesive of the device. The link to the iOpener instructions are listed below.
iOpener Instructions
1024
Step 2
- Place the flat head of the bigger plastic opening tool in between the front plate and back plate.
- Pull the tool toward the back of the device to pry it open.
- Repeat this process over all edges of the device.
Place the flat head of the bigger plastic opening tool in between the front plate and back plate.
Pull the tool toward the back of the device to pry it open.
Repeat this process over all edges of the device.
Step 3
- Open up the device by pulling the front plate straight up from the back plate.
Open up the device by pulling the front plate straight up from the back plate.
Step 4
Motherboard
- Carefully detach the wire running from the speaker to the motherboard by unplugging it from the white socket.
Carefully detach the wire running from the speaker to the motherboard by unplugging it from the white socket.
Step 5
- Using the PH000, unscrew the three 4.55 mm screws in the motherboard.
- The names of the screwdriver heads are listed on the sides of each head.
Using the PH000, unscrew the three 4.55 mm screws in the motherboard.
The names of the screwdriver heads are listed on the sides of each head.
Step 6
- Remove the motherboard from the device by lifting it up from the back plate.
Remove the motherboard from the device by lifting it up from the back plate.
Step 7
Battery
- Desolder the battery from the back of the motherboard using the heated soldering iron.
- You can find instructions to desolder the battery here. How To Solder and Desolder Connections.
Desolder the battery from the back of the motherboard using the heated soldering iron.
You can find instructions to desolder the battery here. How To Solder and Desolder Connections.
To reassemble your device, follow these instructions in reverse order.
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Author
with 3 other contributors
Spartacus
Member since: 10/17/2014
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5 Guides authored
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Team
Baylor, Team 8-13, Williams Fall 2014
Member of Baylor, Team 8-13, Williams Fall 2014
BU-WILLIAMS-F14S8G13
3 Members
5 Guides authored
michael moody - Apr 8, 2016
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what are the battery spec. that are used , for the replacement battery?
bari - Jun 6, 2018
Reply
i agree with Michael above , the “fix” here is pretty useless without even the physical dimensions of the battery , or removing the tape obscuring the numbers on the existing battery, so we might have some hope of referencing one before tearing apart a device and having it sit while a replacement battery is coming ,,,, remember some of us live in very remote areas where it takes quite a while to get parts
Mark Pritchard - Sep 3, 2018
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Original Battery Specifications
Rechargeable Lithium-ion Polymer cell AHB723938
Typical Capacity 1200mAh at 0.2C mA Discharge
Charging Voltage 4.2 V
Typical Voltage 3.8 V
Charging Method Constant Current/Constant Voltage (CC/CV)
Cut-off Discharge Voltage 3.0V
Max. Discharge Current 2.0C mA
Max. Charge Current 1.0C mA
Cycle Life > 300 cycles at 0.5C mA Charge/Discharge
Operating Temperature for Standard Charge 0℃ to 45℃
Operating Temperature for Discharge -20℃ to 60℃
Storage Temperature -20℃ to 60℃
Energy Density Volumetric Energy Density (Wh/L) 427
Energy Density Gravimetric Energy Density (Wh/Kg) 182
Weight of Bare Cell Approx. 25.0g
Initial Internal Impedance < 81mΩ
Measures approx 35mm x 37mm
Mark Pritchard - Sep 5, 2018
Reply
Also, in step 6, if you look closely at the picture you will see that the author has all but ruined the device by prying from the wrong side, and has pulled the board connector off the board. Pry GENTLY from the front where it connects to the other board so the connector disconnects instead of prying it off the board and having to resolder it.
Mark Pritchard - Oct 9, 2018
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