crwdns2935311:0crwdnd2935311:0crwdne2935311:0 crwdns2935313:0Caterpillar B15crwdnd2935313:0crwdnd2935313:0crwdne2935313:0

  1. Caterpillar B15 Teardown, Caterpillar B15 Teardown: crwdns2935265:01crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • 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.

  2. Caterpillar B15 Teardown: crwdns2935265:02crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Caterpillar B15 Teardown: crwdns2935265:02crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • 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.

  3. Caterpillar B15 Teardown: crwdns2935265:03crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Caterpillar B15 Teardown: crwdns2935265:03crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Place index finger at the top edge of the battery and gently lift upwards. The battery will slide cleanly out of the phone.

  4. Caterpillar B15 Teardown: crwdns2935265:04crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Caterpillar B15 Teardown: crwdns2935265:04crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • 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.

  5. Caterpillar B15 Teardown: crwdns2935265:05crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • 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.

  6. Caterpillar B15 Teardown: crwdns2935265:06crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • There are three remaining screws on each long side of the phone. A small hex bit is required for removal.

  7. Caterpillar B15 Teardown: crwdns2935265:07crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • There is one more Phillips screw remaining. It is located beneath the headphone cover.

  8. Caterpillar B15 Teardown: crwdns2935265:08crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • 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.

  9. Caterpillar B15 Teardown: crwdns2935265:09crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • With all screws removed, move around the motherboard, carefully prying it from the remaining shell.

  10. Caterpillar B15 Teardown: crwdns2935265:010crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Finally, disconnect the chip seen in the upper right, and the board should pull away from the rest of the phone.

  11. Caterpillar B15 Teardown: crwdns2935265:011crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Congratulations. You have successfully disassembled the Caterpillar B15.

Geoffrey Mosdell


1.119 crwdns2915208:0crwdne2915208:0



USF Tampa, Team 4-7, Brown Fall 2014 crwdns2935289:0USF Tampa, Team 4-7, Brown Fall 2014crwdne2935289:0






where can i buy T5 Torx screws for CAT B15 ?


Laurent NOEL

Laurent NOEL - crwdns2934203:0crwdne2934203:0

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 - crwdns2934203:0crwdne2934203:0



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