Introduction

The following guide covers how to replace the 3.7 V lithium-ion battery in the Digitac Jazz Ultratab C725. The battery removal procedure for this device requires the proper use of a soldering iron. If you are unfamiliar with soldering, we recommend that you check out this soldering guide.

Image 1/3: Remove four screws with the Phillips #00 screwdriver. Image 2/3: Avoid damage to the threads by  removing the screws with the least amount of force possible. Damaging could make it difficult to remove the screw. Image 3/3: Avoid damage to the threads by  removing the screws with the least amount of force possible. Damaging could make it difficult to remove the screw.
  • Locate the four 3.5 mm Philips head screws. There are two screws on top and 2 screws on the bottom.

  • Remove four screws with the Phillips #00 screwdriver.

  • Avoid damage to the threads by removing the screws with the least amount of force possible. Damaging could make it difficult to remove the screw.

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Image 1/3: Insert the plastic opening tool between the silver back plate and the screen. From the corner of the device on either side, pry the seam of the device about 1 inch. Image 2/3: With the plastic opening tool, pry the screen apart from the back plate. Image 3/3: Keep prying the screen apart from the back plate until they are separated.
  • Flip your device so that the long side without the buttons is facing you.

  • Insert the plastic opening tool between the silver back plate and the screen. From the corner of the device on either side, pry the seam of the device about 1 inch.

    • With the plastic opening tool, pry the screen apart from the back plate.

    • Keep prying the screen apart from the back plate until they are separated.

    • With the plastic opening tool, if necessary, pry part the remaining seams of the device.

  • After the screen is loose, pull the screen towards you. Lift it to prevent damage to the buttons.

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Image 1/2: Pull the wires once the solder is melted. Image 2/2: Pull the wires once the solder is melted.
  • Use a soldering iron to melt the solder that connects the battery wires to the motherboard.

  • Pull the wires once the solder is melted.

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Image 1/3: With the flat side of the Spudger insert it underneath the battery. Image 2/3: Weaken the strength of the adhesive  by sweeping back and forth along the battery. Image 3/3: Pull the battery out of the device once it is loose.
  • Peel up one of the long edges of the battery.

  • With the flat side of the Spudger insert it underneath the battery.

  • Weaken the strength of the adhesive by sweeping back and forth along the battery.

  • Pull the battery out of the device once it is loose.

  • A damaged battery is a fire hazard. Avoid damaging the battery at all costs.

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Conclusion

To reassemble your device, follow these instructions in reverse order.

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Seth York

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USF Tampa, Team 11-6, Blackwell Winter 2015 Member of USF Tampa, Team 11-6, Blackwell Winter 2015

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