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Introduction

This guide will require both opening the Xiaomi Mi 4 and detaching the motherboard. The back cover and battery in the device must be removed first before getting to the cameras on the motherboard so you will need to tackle those first.

  1. Check to make sure that the device is powered off. Use a pin or paper clip to insert in the hole on the side of the phone next to the micro SIM cardholder to remove the tray. Remove the SIM card tray from the Xiaomi Mi 4 and store somewhere safe.
    • Check to make sure that the device is powered off.

    • Use a pin or paper clip to insert in the hole on the side of the phone next to the micro SIM cardholder to remove the tray.

    • Remove the SIM card tray from the Xiaomi Mi 4 and store somewhere safe.

  2. Using the flat metal spudger and curved metal spudger, make a wedge between the plastic back cover and the inner frame Using the second spudger, slowly work your way around the perimeter of the device Check for clicking sounds as you are prying the back cover away from the frame
    • Using the flat metal spudger and curved metal spudger, make a wedge between the plastic back cover and the inner frame

    • Using the second spudger, slowly work your way around the perimeter of the device

    • Check for clicking sounds as you are prying the back cover away from the frame

    • As the back cover is almost completely removed, use the suction-cup tool to remove the plastic cover without damaging the back

  3. Place the screws on the magnetic mat to avoid losing them. Use a 3.0 Phillip’s head screwdriver to remove the 10 1.2mm Phillip’s head screws in the plastic frame that held the motherboard and battery. Use a 3.0 Phillip’s head screwdriver to remove the 3 0.5mm Phillip’s head screws in the plastic frame that held the motherboard and battery.
    • Place the screws on the magnetic mat to avoid losing them.

    • Use a 3.0 Phillip’s head screwdriver to remove the 10 1.2mm Phillip’s head screws in the plastic frame that held the motherboard and battery.

    • Use a 3.0 Phillip’s head screwdriver to remove the 3 0.5mm Phillip’s head screws in the plastic frame that held the motherboard and battery.

    • Use the small plastic opening tool and place it in the slot on the bottom right corner of the inner frame and carefully pry it off.

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  5. Look keenly for the connections that run across the battery and are connected to the motherboard. Use tweezers to gently disconnect the two connectors that are stated in the previous step. Proceed to gently remove the tape like connector from the battery until it is completely off.
    • Look keenly for the connections that run across the battery and are connected to the motherboard.

    • Use tweezers to gently disconnect the two connectors that are stated in the previous step.

    • Proceed to gently remove the tape like connector from the battery until it is completely off.

    • Use tweezer to disconnect battery’s wire from the motherboard.

  6. Use the plastic opening tool to gently pry the battery out of its casing for removal. Use the plastic opening tool to gently pry the battery out of its casing for removal.
    • Use the plastic opening tool to gently pry the battery out of its casing for removal.

  7. With the battery removed locate the left-hand cable connected to the motherboard.  With the tweezers, firmly grasp the wires of the connector and gently disconnect the cable from the motherboard.
    • With the battery removed locate the left-hand cable connected to the motherboard. With the tweezers, firmly grasp the wires of the connector and gently disconnect the cable from the motherboard.

    • Find the other cable connecting the motherboard to the device at the top right-hand side of the phone, and carefully use the tweezers to remove that as well.

  8. Wedge the plastic opening tool, between the motherboard and the inner region of the phone in the slot atop the motherboard. Wedge the plastic opening tool, between the motherboard and the inner region of the phone in the slot atop the motherboard.
    • Wedge the plastic opening tool, between the motherboard and the inner region of the phone in the slot atop the motherboard.

  9. With the motherboard detached from the phone, locate the front camera in the upper left-hand corner. Use a pair of tweezers to disconnect the front-facing camera by popping the cable off of the motherboard connector. Use a pair of tweezers to disconnect the front-facing camera by popping the cable off of the motherboard connector.
    • With the motherboard detached from the phone, locate the front camera in the upper left-hand corner.

    • Use a pair of tweezers to disconnect the front-facing camera by popping the cable off of the motherboard connector.

Conclusion

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

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William Pendeergraft

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