Introduction

This guide will instruct you on the complete disassembly of the Caterpillar B15.

This teardown is not a repair guide. To repair your Caterpillar B15, use our service manual.

  1. Place the phone screen-side down and place thumb on the yellow and black switch. Slide the switch to the right to unlock the back covering for removal.
    • Place the phone screen-side down and place thumb on the yellow and black switch. Slide the switch to the right to unlock the back covering for removal.

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  2. Remove the back covering by gently lifting upwards from the bottom of the back covering. The back will snap off and the battery is exposed.
    • Remove the back covering by gently lifting upwards from the bottom of the back covering. The back will snap off and the battery is exposed.

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    • Place index finger at the top edge of the battery and gently lift upwards. The battery will slide cleanly out of the phone.

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    • With the back cover removed, locate and remove the Phillips screw pictured top-center, and the two torx screws above and to either side of the Phillips screw. A T-5 bit is required for removal of the torx screws.

    • WARNING: Proceeding beyond this point will void the warranty for this device.

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    • Next, remove the two torx (star-shaped) screws below the battery. These screws help to secure the outer shell of the phone around the motherboard. A T-5 bit is required for removal.

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    • There are three remaining screws on each long side of the phone. A small hex bit is required for removal.

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    • There is one more Phillips screw remaining. It is located beneath the headphone cover.

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    • With all screws removed, the back and side pieces should come off the front of the phone, exposing the motherboard and various components as shown.

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    • With all screws removed, move around the motherboard, carefully prying it from the remaining shell.

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    • Finally, disconnect the chip seen in the upper right, and the board should pull away from the rest of the phone.

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    • Congratulations. You have successfully disassembled the Caterpillar B15.

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Geoffrey Mosdell

Member since: 10/06/2014

871 Reputation

5 Guides authored

Team

USF Tampa, Team 4-7, Brown Fall 2014 Member of USF Tampa, Team 4-7, Brown Fall 2014

USFT-BROWN-F14S4G7

4 Members

5 Guides authored

2 Comments

Hi,

where can i buy T5 Torx screws for CAT B15 ?

Regards,

Laurent NOEL

Laurent NOEL - Reply

Any idea where I can get the rubber piece that covers the USB port? The one repair shop in the US wants about $200 for that repair.

John Nagle - Reply

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