Huawei Nova - Replacing the proximity sensor

The display doesn’t turn off during calls.

  • Huawei Nova
  • 20 Steps
  • Easy
  • 30 min.
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Introduction

In this repair guide, we show you how to replace your Huawei Nova's defective proximity sensor on your own. You need this repair if your display no longer goes off when you’re talking on the phone, or if the automatic brightness control stops working.

Required tools

  • Hartplastik-Plektren

    Hartplastik-Plektren

    You need a flat but stable tool such as a pick to pry out parts that are glued in place.

    €1.00 at the iDoc store
  • For storing screws

    For storing screws

    We recommend storing your screws so you don’t mix up the various screws and small parts.

    €10.00 at the iDoc store
  • Tweezers

    Tweezers

    We recommend using tweezers to remove screws and various small parts from your device.

    €16.00 at the iDoc store
  • Steel Laboratory Spatula

    Steel Laboratory Spatula

    You need a flat and sturdy prying tool to disconnect glued parts.

    €9.00 at the iDoc store
  • Suction cup

    Suction cup

    A suction cup is perfect for lifting smooth surfaces such as displays or rear glass panels.

    €2.00 at the iDoc store
  • Pentalobe PL1 screwdriver

    Pentalobe PL1 screwdriver

    You need the right screwdriver for removing pentalobe PL1 screws.

    €10.00 at the iDoc store
  • Phillips PH00 screwdriver

    Phillips PH00 screwdriver

    You need the right screwdriver for removing PH00 screws.

    €10.00 at the iDoc store
Show all replacement parts for the Huawei Nova 

Replacement parts and tools for this repair

Our tools plus the right spare part help you fix your device easily.

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Getting started

If you get stuck or have questions, you can post a comment for each step. We’d be happy to help.

20 steps
  1. Switching off your device

    Huawei Nova - Switching off your device 01
    Huawei Nova - Switching off your device 02
    1. Switch off your device. Press and hold the power button until a menu appears. Select “Power off” and tap again to confirm.
  2. Removing the SIM card tray

    Huawei Nova - Removing the SIM card tray 01
    Huawei Nova - Removing the SIM card tray 02
    1. Insert your SIM tool into the little hole on the tray to unlock the tray.
    2. Remove the tray and any SIM or microSD cards.
  3. Removing the back cover screws

    Huawei Nova - Removing the back cover screws 01
    • 2 × Pentalobe
    1. Unscrew and remove the two pentalobe screws at the bottom of the device that keep the cover closed.

    You need a Pentalobe PL1 screwdriver, which is also used for iPhones.

  4. Lifting the back cover

    Huawei Nova - Lifting the back cover 01
    Huawei Nova - Lifting the back cover 02
    Huawei Nova - Lifting the back cover 03
    Huawei Nova - Lifting the back cover 04

    Be very careful during this step.

    1. Place the suction cup as far down on the back cover as possible, for example where it says “Huawei.”
    2. Pull on the suction cup while using the pick to push the display against the table. As soon as a gap appears between the display and the back cover, you can carefully insert the pick.
    3. Move the pick along the edges to disconnect the back cover from the sides. Continue to pull carefully on the suction cup.
    4. The fingerprint sensor is installed in the back cover. A flex cable connects this sensor to the motherboard. Be careful when you take off the display to avoid damaging the cable or board.

    5. Carefully lift the back cover. Slowly fold open the device at the upper edge like a book. Now you should see the fingerprint sensor flex cable.
  5. Disconnecting the battery

    Huawei Nova - Disconnecting the battery 01
    Huawei Nova - Disconnecting the battery 02
    • Battery Connector
    1. Disconnect the connector of the black flex cable leading to the battery using a flat tool.
  6. Disconnecting the fingerprint sensor

    Huawei Nova - Disconnecting the fingerprint sensor 01
    Huawei Nova - Disconnecting the fingerprint sensor 02
    • 1 × Phillips
    1. The screw holding the plate over the display connector is covered by a round sticker. Remove this sticker.
    2. Unscrew the screw and remove the plate. The connector is attached to the cover and comes off with it.
  7. Disconnecting the flex cables

    Huawei Nova - Disconnecting the flex cables 01
    Huawei Nova - Disconnecting the flex cables 02
    Huawei Nova - Disconnecting the flex cables 03
    Huawei Nova - Disconnecting the flex cables 04
    Huawei Nova - Disconnecting the flex cables 05
    Huawei Nova - Disconnecting the flex cables 06
    Huawei Nova - Disconnecting the flex cables 07
    • 1 × Phillips
    • Flex cable 1
    • Flex cable 2
    • Antenna cable
    • 1 × Phillips
    • Flex cable 3
    1. Unscrew the screw on the plate covering the connectors of the two large flex cables. Then remove the plate.
    2. Disconnect the two flex cable connectors on the motherboard using a spudger.
    3. Disconnect the connector of the antenna cable on the lower circuit board. Now you can reach the screw for the lower plate covering the connector of the large flex cable with the arrow.
    4. Unscrew the screw of the lower plate and remove the plate.
    5. Use a spudger to disconnect the connector and then remove the flex cable.
  8. Removing the front camera

    Huawei Nova - Removing the front camera 01
    Huawei Nova - Removing the front camera 02
    Huawei Nova - Removing the front camera 03
    Huawei Nova - Removing the front camera 04
    Huawei Nova - Removing the front camera 05
    • 1 × Phillips
    • Front camera connector
    1. Unscrew the screw of the metal plate over the connector of the front camera.
    2. Remove the plate.
    3. Carefully remove the connector using a spudger.
    4. Remove the front camera from its bracket.
  9. Removing the audio port

    Huawei Nova - Removing the audio port 01
    Huawei Nova - Removing the audio port 02
    Huawei Nova - Removing the audio port 03
    • Audio port connector
    1. Disconnect the connector using a spudger and remove the audio port.
  10. Removing the motherboard

    Huawei Nova - Removing the motherboard 01
    Huawei Nova - Removing the motherboard 02
    Huawei Nova - Removing the motherboard 03
    • 3 × Phillips
    • Antenna cable
    1. Disconnect the antenna cable's connector.
    2. Remove the three remaining screws of the motherboard.
    3. Carefully lift up the battery flex cable.
    4. Remove the entire motherboard (including the main camera).

    You should always disconnect the battery connector right after opening the device. In this step, you are just unglueing the battery cable.

  11. Removing the proximity sensor

    Huawei Nova - Removing the proximity sensor 01
    Huawei Nova - Removing the proximity sensor 02
    Huawei Nova - Removing the proximity sensor 03
    • Proximity sensor
    1. Carefully heat the proximity sensor using a heat gun to melt the glue underneath it.
    2. Carefully losen the proximity sensor using a metal spatula and remove it.
  12. Inserting the proximity sensor

    Huawei Nova - Inserting the proximity sensor 01
    Huawei Nova - Inserting the proximity sensor 02
    1. Reinsert the proximity sensor into the display and press it down to make it stick.
  13. Inserting the motherboard

    Huawei Nova - Inserting the motherboard 01
    Huawei Nova - Inserting the motherboard 02
    Huawei Nova - Inserting the motherboard 03
    • 3 × Phillips
    • Antenna cable
    1. Insert the motherboard into the new display. Make sure that the main camera is inserted into its bracket.
    2. Screw the three Phillips screws into their screwholes on the corners of the motherboard. Leave the hole on the lower right of the mainboard in the image free for now.
    3. Reconnect the antenna cable to the motherboard. First place the connector straight over its socket. Then carefully press down the connector until it snaps into place.
  14. Inserting the audio port

    Huawei Nova - Inserting the audio port 01
    Huawei Nova - Inserting the audio port 02
    • Audio port connector
    1. Insert the audio port into the display.
    2. Connect the connector of the audio port to the motherboard.
  15. Inserting the front camera

    Huawei Nova - Inserting the front camera 01
    Huawei Nova - Inserting the front camera 02
    Huawei Nova - Inserting the front camera 03
    Huawei Nova - Inserting the front camera 04
    • Front camera connector
    • 1 × Phillips
    1. Insert the front camera into the display.
    2. Carefully connect the connector of the front camera to the motherboard.
    3. Place the plate over the connectors of the earpiece and the front camera, latch it in, and fasten it with the Phillips screw.
  16. Connecting the battery

    Huawei Nova - Connecting the battery 01
    Huawei Nova - Connecting the battery 02
    • Battery connector
    1. Now connect the battery again.
  17. Connecting the back cover

    Huawei Nova - Connecting the back cover 01
    Huawei Nova - Connecting the back cover 02
    Huawei Nova - Connecting the back cover 03
    Huawei Nova - Connecting the back cover 04
    Huawei Nova - Connecting the back cover 05
    • Finger print sensor connector
    • 1 × Phillips

    Connect the connector of the fingerprint sensor on the back cover to the motherboard.

    1. The display connector is connected to a metal plate. Latch in the metal plate and press down the connector.
    2. Screw in the metal plate (1x Phillips screw).
    3. Stick the round moisture indicator onto the screw, if you still have it.
  18. Attaching the back cover

    Huawei Nova - Attaching the back cover 01
    Huawei Nova - Attaching the back cover 02
    Huawei Nova - Attaching the back cover 03
    1. First latch in the back cover at the top edge (by the camera) and then place it on the display.
    2. Press down the back cover all around carefully to make it snap into place.
  19. Inserting the back cover screws

    Huawei Nova - Inserting the back cover screws 01
    • 2 × Pentalobe
    1. Fasten the two pentalobe screws at the bottom of the device that keep the cover closed.

    You need a Pentalobe PL1 screwdriver, which is also used for iPhones.

  20. Installing the SIM tray

    Huawei Nova - Installing the SIM  tray 01
    1. Insert the SIM tray and any cards back into your device. Make sure the tray is positioned properly.
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