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Kindle Fire HDX 7" Ambient Light Sensor Replacement

Introduction

If your Kindle Fire HDX 7” tablet is staying bright when the night falls and dark when the suns out, the ambient light sensor may be busted.

First check the settings and make sure that auto brightness is turned on, if it is, follow this guide to replace it yourself.

What you need

  1. Kindle Fire HDX 7" Ambient Light Sensor Replacement, Speaker Bezel: step 1, image 1 of 3 Kindle Fire HDX 7" Ambient Light Sensor Replacement, Speaker Bezel: step 1, image 2 of 3 Kindle Fire HDX 7" Ambient Light Sensor Replacement, Speaker Bezel: step 1, image 3 of 3

    • Insert an opening pick underneath the speaker bezel, and slide it along the perimeter to separate it from the tablet.

    • The adhesive is strong and may require an iOpener, or heat gun, to soften.

    Edit

  2. Kindle Fire HDX 7" Ambient Light Sensor Replacement: step 2, image 1 of 1

    • Remove the speaker bezel.

    Edit

  3. Kindle Fire HDX 7" Ambient Light Sensor Replacement, Rear Panel: step 3, image 1 of 1

    • Remove the six pink 3mm T3 Torx screws from the back case.

    Edit

  5. Kindle Fire HDX 7" Ambient Light Sensor Replacement: step 4, image 1 of 2 Kindle Fire HDX 7" Ambient Light Sensor Replacement: step 4, image 2 of 2

    • Wedge opening picks around the perimeter between the display and back case.

    • Work the opening picks around the perimeter until the two halves disengage from each other.

    • Don't completely separate as the display ribbon cable still connects the two.

    Edit

  6. Kindle Fire HDX 7" Ambient Light Sensor Replacement: step 5, image 1 of 1

    • Use the flat end of a spudger to pry up and disconnect the rear panel press-fit connector from the motherboard.

    Edit

    • There may be a glue strip between the battery and the outside case. Gently pry the case open and use the flat end of a spudger to separate the glue strip.

    Edit

  8. Kindle Fire HDX 7" Ambient Light Sensor Replacement, Ambient Light Sensor: step 7, image 1 of 1

    • Pry up the ambient light sensor press-fit connector from the motherboard with the flat end of a spudger.

    Edit

  9. Kindle Fire HDX 7" Ambient Light Sensor Replacement: step 8, image 1 of 3 Kindle Fire HDX 7" Ambient Light Sensor Replacement: step 8, image 2 of 3 Kindle Fire HDX 7" Ambient Light Sensor Replacement: step 8, image 3 of 3

    • The motherboard has been removed in this image, but its removal is not necessary to complete this replacement.

    • Pull the ambient light sensor out of its socket with a pair of tweezers to remove.

    Edit
Conclusion

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

Author

with 1 other contributor

Blake Klein

Member since: 01/29/17

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