Introduction

This motherboard replacement guide applies to the Verizon Samsung Galaxy S4 Mini, model number SCH-I435.

Press and hold the END key to power the phone down.
  • Press and hold the END key to power the phone down.

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Remove the back cover of the cell phone using a plastic opening tool.
  • Remove the back cover of the cell phone using a plastic opening tool.

The LEGO Brick Separator (https://www.lego.com/en-us/service/brick...) also works perfectly if you don’t have the iFixit Opening Tool handy.

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Pry the battery out using a plastic opening tool.
  • Pry the battery out using a plastic opening tool.

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Using tweezers, remove the SIM card by sliding it towards the bottom of the device. Using tweezers, remove the SIM card by sliding it towards the bottom of the device.
  • Using tweezers, remove the SIM card by sliding it towards the bottom of the device.

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Using a nylon spudger, push through the hole at the top of the memory card holder to slide it out.
  • Using a nylon spudger, push through the hole at the top of the memory card holder to slide it out.

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Remove the ten 4.0 mm screws on the back of the phone using the #00 Phillips screwdriver.
  • Remove the ten 4.0 mm screws on the back of the phone using the #00 Phillips screwdriver.

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Starting at the USB port, slide a plastic opening tool around the perimeter of the phone between the rear housing and frame. As you work your way around the edge, you will feel the clips release. Carefully separate the rear housing and the mid-frame to reveal the inside of the phone.
  • Starting at the USB port, slide a plastic opening tool around the perimeter of the phone between the rear housing and frame. As you work your way around the edge, you will feel the clips release.

  • Carefully separate the rear housing and the mid-frame to reveal the inside of the phone.

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Use a pair of tweezers to lift the two charging assembly press fit connectors free.
  • Use a pair of tweezers to lift the two charging assembly press fit connectors free.

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Use the flat end of a nylon spudger to lift the headphone jack press-fit connector up to release the ribbon cable. Use the flat end of a nylon spudger to lift the headphone jack press-fit connector up to release the ribbon cable.
  • Use the flat end of a nylon spudger to lift the headphone jack press-fit connector up to release the ribbon cable.

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Use the flat end of a nylon spudger to lift the infrared sensor press-fit connector up to release the ribbon cable. Use the flat end of a nylon spudger to lift the infrared sensor press-fit connector up to release the ribbon cable.
  • Use the flat end of a nylon spudger to lift the infrared sensor press-fit connector up to release the ribbon cable.

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Use the flat end of a nylon spudger to lift the front-facing camera press-fit connector up to release the ribbon cable. Use the flat end of a nylon spudger to lift the front-facing camera press-fit connector up to release the ribbon cable.
  • Use the flat end of a nylon spudger to lift the front-facing camera press-fit connector up to release the ribbon cable.

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Gently lift the motherboard up and partially away from the device. The digitizer ribbon cable is still attached to the underside of the motherboard. The digitizer ribbon cable is still attached to the underside of the motherboard.
  • Gently lift the motherboard up and partially away from the device.

  • The digitizer ribbon cable is still attached to the underside of the motherboard.

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Put the flat end of a nylon spudger under the lip of the digitizer press-fit connector and lift up to release the connector and free the motherboard. Put the flat end of a nylon spudger under the lip of the digitizer press-fit connector and lift up to release the connector and free the motherboard.
  • Put the flat end of a nylon spudger under the lip of the digitizer press-fit connector and lift up to release the connector and free the motherboard.

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Conclusion

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

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Richard Suovanen

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