Xiaomi Mi 4 Motherboard Replacement Repair Guide

Difficulty

Difficult

Steps

Time Required

                          2 hours

Sections

Rear Case/Midframe
3 steps
Battery
2 steps
Motherboard
2 steps

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Introduction

What you need

Step 1

              Rear Case/Midframe

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 it 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 it somewhere safe.

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Step 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
Listen 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

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

Listen 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

Step 3

Use a 000 phillips head screwdriver to remove the 10 1.2mm phillips head screws in the plastic frame that hold the motherboard and battery.
Use a 000 phillips head screwdriver to remove the 3 0.5mm phillips head screws in the plastic frame that hold 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.

Use a 000 phillips head screwdriver to remove the 10 1.2mm phillips head screws in the plastic frame that hold the motherboard and battery.

Use a 000 phillips head screwdriver to remove the 3 0.5mm phillips head screws in the plastic frame that hold 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.

Step 4

              Battery

Use tweezers to gently disconnect the connections that run across the battery and are connected to the motherboard.
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.

Use tweezers to gently disconnect the connections that run across the battery and are connected to the motherboard.

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.

Step 5

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.

Step 6

              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.

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.

Step 7

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.

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

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                                      with 4 other contributors

                    William Pendeergraft

Member since: 09/08/2015

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                                            10 Guides authored

Milos Milos - May 8, 2016

Ruined my motherboard to Xiaomi mi4c, do you know where can I buy?

Ben Dungey - Jun 1, 2016

I have broken one of the cable connections on the motherboard ( top one in Step 6). Do you know where I can buy a new motherboard?

Dong Zhengyue - Jul 14, 2016

you can buy the motherboard on taobao.com

Shravan - Sep 22, 2016

sim card reader is damaged. Do I need to have whole motherboard replaced

Thalanki Balaji - Nov 27, 2016

sir i need MI4I motherboard unable to find elsewhere

Mobile # 09060907775

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Introduction#

What you need#

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Introduction

What you need

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