Xiaomi Redmi Go Screen And Battery Replacement Repair Guide

Difficulty

Moderate

Steps

Time Required

                          1 - 2 hours

Sections

Screen and Battery
21 steps

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Introduction

Replacing the battery is quite simple, on the other hand replacing the screen is a fairly complex operation because all the components are mounted on the frame that carries the screen. This therefore requires dismantling all the components to transfer them to the new chassis which carries the new screen.

What you need

Step 1

              Tools required

An opening pick or strong fingernail to open the phone creating a gap between the case and the screen
A small Phillips screwdriver
A plastic spudger to disconnect the cables without damaging them
A box cutter or X-Acto knife to take off the vibrator and the cable that carries the Power/Volume buttons
Contact glue (liquid neoprene) to glue the vibrator, the cable that carries the Power/Volume buttons, the charger cable and the battery

An opening pick or strong fingernail to open the phone creating a gap between the case and the screen

A small Phillips screwdriver

A plastic spudger to disconnect the cables without damaging them

A box cutter or X-Acto knife to take off the vibrator and the cable that carries the Power/Volume buttons

Contact glue (liquid neoprene) to glue the vibrator, the cable that carries the Power/Volume buttons, the charger cable and the battery

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Step 2

              Remove the SIM and SD card holders

You must remove both the SIM and SD card holders before unclipping the case

You must remove both the SIM and SD card holders before unclipping the case

Step 3

              Open the Case

This is a difficult operation and if done incorrectly, there is a significant risk of damaging the screen. Above all, do not attempt to use a knife to separate the glass from the screen.
To unclip the rear case, you must insert a fingernail or an opening pick between the screen glass and the case at the level of the card holders located on the left, to create a gap in which you will slide a pick.
Once you have an opening, insert an opening pick and leave it in place, then continue to go around the case by sliding a thumbnail or pick between the case and the screen
With the screen facing you, continue unclipping, preferably turning counter-clockwise to go around the bottom of the screen, then the right of the screen without damaging the push buttons, to finish from the top of the screen
The rear case is made of plastic and therefore withstands the manipulations required to unclip the screen without permanent warpage.

This is a difficult operation and if done incorrectly, there is a significant risk of damaging the screen. Above all, do not attempt to use a knife to separate the glass from the screen.

To unclip the rear case, you must insert a fingernail or an opening pick between the screen glass and the case at the level of the card holders located on the left, to create a gap in which you will slide a pick.

Once you have an opening, insert an opening pick and leave it in place, then continue to go around the case by sliding a thumbnail or pick between the case and the screen

With the screen facing you, continue unclipping, preferably turning counter-clockwise to go around the bottom of the screen, then the right of the screen without damaging the push buttons, to finish from the top of the screen

The rear case is made of plastic and therefore withstands the manipulations required to unclip the screen without permanent warpage.

Step 4

              Remove the Loudspeaker

Remove the 6 screws from the loudspeaker located at the bottom of the phone.
One of the screws located at the top right of the loudspeaker is covered by an opening indicator (small adhesive circle with the “MI” logo)
Carefully peel off the loudspeaker assembly

Remove the 6 screws from the loudspeaker located at the bottom of the phone.

One of the screws located at the top right of the loudspeaker is covered by an opening indicator (small adhesive circle with the “MI” logo)

Carefully peel off the loudspeaker assembly

Step 5

              Remove the Charger Module

Disconnect the charger module cable located at the bottom right of the battery
Carefully peel off the charger module starting from the left
Be careful not to damage the small black coax cable that connects the charger module to the motherboard

Disconnect the charger module cable located at the bottom right of the battery

Carefully peel off the charger module starting from the left

Be careful not to damage the small black coax cable that connects the charger module to the motherboard

Step 6

              Remove the Motherboard Midframe

Remove the 8 mounting screws from the motherboard cover. One of them, located at the bottom left, is hidden by an opening indicator (small adhesive circle with the “MI” logo).
In general the screws are all very close to the same length, but it is recommended you use a screw mat to ensure they go back in the same hole they came out from during reassembly
Carefully unclip the plastic cover, taking care not to twist it too much. Lever it up with a small screwdriver on one of the corners of the screen

Remove the 8 mounting screws from the motherboard cover. One of them, located at the bottom left, is hidden by an opening indicator (small adhesive circle with the “MI” logo).

In general the screws are all very close to the same length, but it is recommended you use a screw mat to ensure they go back in the same hole they came out from during reassembly

Carefully unclip the plastic cover, taking care not to twist it too much. Lever it up with a small screwdriver on one of the corners of the screen

Step 7

              Remove the Battery

Peel off the 2 adhesive tabs located at the bottom of the battery
One at a time, pull these tabs horizontally, wrapping them around pliers or a screwdriver as you go. They will stretch to a length of around 20 to 30 cm
Disconnect the battery cable. The connector is located at the bottom of the motherboard between the screen connector and the charger module connector
Remove the battery

Peel off the 2 adhesive tabs located at the bottom of the battery

One at a time, pull these tabs horizontally, wrapping them around pliers or a screwdriver as you go. They will stretch to a length of around 20 to 30 cm

Disconnect the battery cable. The connector is located at the bottom of the motherboard between the screen connector and the charger module connector

Remove the battery

Step 8

              Remove the Charging Flex Cable

The charging cable is not usually included with a replacement frame and therefore must be removed from the old frame without damaging it.
Disconnect the charger module cable. The connector is located at the bottom right of the motherboard
Carefully peel off the charger cable located on the right of the frame if it is not included with the new screen
Keep the flex cable away from dust so as not to degrade its adhesive

The charging cable is not usually included with a replacement frame and therefore must be removed from the old frame without damaging it.

Disconnect the charger module cable. The connector is located at the bottom right of the motherboard

Carefully peel off the charger cable located on the right of the frame if it is not included with the new screen

Keep the flex cable away from dust so as not to degrade its adhesive

Step 9

              Remove the Motherboard

Carefully disconnect the following:
The touch connector located at the top right of the motherboard
The volume/power cable connector, located on the left
The screen cable connector, located at the bottom left
Remove the motherboard by lifting it from the bottom
Be careful not to lose the black rubber gasket that surrounds the camera. Do not forget to disconnect the black coax cable that connects the motherboard to the charger module

Carefully disconnect the following:

The touch connector located at the top right of the motherboard

The volume/power cable connector, located on the left

The screen cable connector, located at the bottom left

Remove the motherboard by lifting it from the bottom

Be careful not to lose the black rubber gasket that surrounds the camera. Do not forget to disconnect the black coax cable that connects the motherboard to the charger module

Step 10

              Remove the Vibrator

With a sharp blade, slice the adhesive under the vibrator’s printed circuit to carefully remove it
Carefully remove the remaining glue under the vibrator with a sharp blade
Glue the vibrator back onto the new screen frame, taking care to position it correctly between the two small lugs on the metal frame
To bond with neoprene glue, proceed as follows:
Put a dot of glue on the vibrator motor
Press the motor into place so that the glue spreads over the motor and the frame
Immediately remove the motor and wait a few minutes for the glue to dry a little
When the glue is no longer liquid, but it still sticks slightly to the finger, position the motor into position and press. The bond will be solid after a few hours

With a sharp blade, slice the adhesive under the vibrator’s printed circuit to carefully remove it

Carefully remove the remaining glue under the vibrator with a sharp blade

Glue the vibrator back onto the new screen frame, taking care to position it correctly between the two small lugs on the metal frame

To bond with neoprene glue, proceed as follows:

Put a dot of glue on the vibrator motor

Press the motor into place so that the glue spreads over the motor and the frame

Immediately remove the motor and wait a few minutes for the glue to dry a little

When the glue is no longer liquid, but it still sticks slightly to the finger, position the motor into position and press. The bond will be solid after a few hours

Step 11

              Remove the Earpiece Speaker

With a very small flat screwdriver remove the earpiece speaker located at the top of the phone
Place it directly on the new screen so as not to get the orientation wrong
The contacts that form a small bump at the end of the two copper blades are oriented downwards

With a very small flat screwdriver remove the earpiece speaker located at the top of the phone

Place it directly on the new screen so as not to get the orientation wrong

The contacts that form a small bump at the end of the two copper blades are oriented downwards

Step 12

              Remove the Power and Volume Buttons

Carefully use a flat spudger or a sharp blade between the frame of the screen and the cable which supports the power and volume buttons, located on the left of the telephone to slice the adhesive and remove this cable
Be careful not to deform the flex cable to keep it flat for reinstallation
Carefully remove the glue on the back of the flex cable with a fingernail or a plastic spudger
Place the cable on the new chassis and check that it is positioned flat on the edge of the frame just flush with the metal edge of the chassis
Glue the flex cable with a thin line of neoprene glue (see step 9 for gluing instructions)

Carefully use a flat spudger or a sharp blade between the frame of the screen and the cable which supports the power and volume buttons, located on the left of the telephone to slice the adhesive and remove this cable

Be careful not to deform the flex cable to keep it flat for reinstallation

Carefully remove the glue on the back of the flex cable with a fingernail or a plastic spudger

Place the cable on the new chassis and check that it is positioned flat on the edge of the frame just flush with the metal edge of the chassis

Glue the flex cable with a thin line of neoprene glue (see step 9 for gluing instructions)

Step 13

              Reassemble the Motherboard

Carefully fold the touch screen flex connector located at the top left upwards
Place the motherboard on the new screen, taking care to position the headphone jack and the front camera in their respective slots. Be sure the rubber seal for the rear camera is in place.
Check that the card is correctly positioned in relation to the two small metal guide pins on the chassis (circled in green)
Temporarily secure the motherboard in the chassis with one of the 8 screws of the midframe cover
Plug in the touch screen connector, located at the top right of the motherboard
Plug in the power and volume button cable, located to the left of the motherboard
Plug in the screen cable, located at the bottom left of the motherboard.
The connection between components is a delicate operation which determines the proper functioning of the phone. There’s nothing more stupid than having to disassemble it again because one of them is poorly connected. To do this, position the cable, press gently with the flat tip of a finger in the center of the connector. You should feel a “click”.

Carefully fold the touch screen flex connector located at the top left upwards

Place the motherboard on the new screen, taking care to position the headphone jack and the front camera in their respective slots. Be sure the rubber seal for the rear camera is in place.

Check that the card is correctly positioned in relation to the two small metal guide pins on the chassis (circled in green)

Temporarily secure the motherboard in the chassis with one of the 8 screws of the midframe cover

Plug in the touch screen connector, located at the top right of the motherboard

Plug in the power and volume button cable, located to the left of the motherboard

Plug in the screen cable, located at the bottom left of the motherboard.

The connection between components is a delicate operation which determines the proper functioning of the phone. There’s nothing more stupid than having to disassemble it again because one of them is poorly connected. To do this, position the cable, press gently with the flat tip of a finger in the center of the connector. You should feel a “click”.

Step 14

              Fit the Charging Assembly

On the new screen, remove the two blue stickers that protect the adhesive used to secure the charger module and the micro USB connector
Replace the charger module by positioning it correctly in relation to the two small metal lugs located on the chassis (a small cylindrical point located at the top right and a small protrusion located just above and to the right of the micro USB connector)

On the new screen, remove the two blue stickers that protect the adhesive used to secure the charger module and the micro USB connector

Replace the charger module by positioning it correctly in relation to the two small metal lugs located on the chassis (a small cylindrical point located at the top right and a small protrusion located just above and to the right of the micro USB connector)

Step 15

              Installing the Charging Flex Cable

Plug the charger flex cable into the motherboard
Plug the other end into the charger module
On the frame of the screen, in the path of the charger cable, place a thin line of neoprene glue
Apply the flex cable to the frame to distribute the glue on the flex cable and in the path of the flex cable
Wait a few minutes and stick the cable onto the chassis starting from the center and flattening the cable going up and down towards the two connectors
Form the cable near the connectors without forcing it too much so as not to damage it
Check that the black coax antenna cable that connects the charger module to the motherboard is correctly positioned in its channel

Plug the charger flex cable into the motherboard

Plug the other end into the charger module

On the frame of the screen, in the path of the charger cable, place a thin line of neoprene glue

Apply the flex cable to the frame to distribute the glue on the flex cable and in the path of the flex cable

Wait a few minutes and stick the cable onto the chassis starting from the center and flattening the cable going up and down towards the two connectors

Form the cable near the connectors without forcing it too much so as not to damage it

Check that the black coax antenna cable that connects the charger module to the motherboard is correctly positioned in its channel

Step 16

              Install the Battery

Place 2 dots of contact adhesive (neoprene) on the chassis at the base of the battery, where the tabs are.
Be careful not to put too much glue because you already have to think about replacing the battery and making it easier to take off
Position the battery in its location in order to distribute the glue on the battery and on the chassis then immediately remove the battery
As with gluing the vibrator, wait a few minutes before gluing the battery
Reconnect the battery flex cable to the motherboard

Place 2 dots of contact adhesive (neoprene) on the chassis at the base of the battery, where the tabs are.

Be careful not to put too much glue because you already have to think about replacing the battery and making it easier to take off

Position the battery in its location in order to distribute the glue on the battery and on the chassis then immediately remove the battery

As with gluing the vibrator, wait a few minutes before gluing the battery

Reconnect the battery flex cable to the motherboard

Step 17

              Install the Lower Speaker

Position the loudspeaker module and install its 6 screws
Double-check on the right that the black coax antenna cable that connects the charger module and the motherboard is correctly positioned in its groove

Position the loudspeaker module and install its 6 screws

Double-check on the right that the black coax antenna cable that connects the charger module and the motherboard is correctly positioned in its groove

Step 18

              Check for Proper Operation

Before completing the complete reassembly, check the proper functioning of the phone
Turn on the phone and check that the vibrator is functioning
Take a photo with and without flash then a selfie to check the front and rear cameras as well as the flash
Make a call to check the microphone and earpiece speaker
During the call, hold your hand close to the screen to check that it turns off. This indicates that the proximity sensor is working properly.
Check the loudspeaker by playing music or switching to speakerphone mode during a call
Check that the touchscreen works correctly with a drawing application or a test application
Bravo, you have been meticulous, everything works perfectly!

Before completing the complete reassembly, check the proper functioning of the phone

Turn on the phone and check that the vibrator is functioning

Take a photo with and without flash then a selfie to check the front and rear cameras as well as the flash

Make a call to check the microphone and earpiece speaker

During the call, hold your hand close to the screen to check that it turns off. This indicates that the proximity sensor is working properly.

Check the loudspeaker by playing music or switching to speakerphone mode during a call

Check that the touchscreen works correctly with a drawing application or a test application

Bravo, you have been meticulous, everything works perfectly!

Step 19

              Replace the Motherboard Midframe

Check that the rubber surround around the rear camera is in place
Remove the screw previously placed temporarily to hold the motherboard in place
Reposition and reclip the protective cover of the motherboard and install its 8 screws

Check that the rubber surround around the rear camera is in place

Remove the screw previously placed temporarily to hold the motherboard in place

Reposition and reclip the protective cover of the motherboard and install its 8 screws

Step 20

              Reassemble the Rear Case

Reclip the case starting at the bottom and working upwards symmetrically on the left and right sides
Once installed, the rear case should be perfectly joined to the frame. If this is not the case, it is possible that the battery or the speaker unit is incorrectly positioned, or the midframe cover on the motherboard is not correctly installed.

Reclip the case starting at the bottom and working upwards symmetrically on the left and right sides

Once installed, the rear case should be perfectly joined to the frame. If this is not the case, it is possible that the battery or the speaker unit is incorrectly positioned, or the midframe cover on the motherboard is not correctly installed.

Step 21

              Reinsert the SIM and SD Cards

Reinstall the SIM card and the SD memory card
Attention, the circuit contacts are oriented towards the back of the phone

Reinstall the SIM card and the SD memory card

Attention, the circuit contacts are oriented towards the back of the phone

The operation is accessible to any patient and meticulous person who will carefully follow the instructions of this tutorial.

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Member-Contributed Guide#

Introduction#

What you need#

Member-Contributed Guide

Introduction

What you need