Galaxy S20 Usb C Charging Port And Daughterboard Replacement Repair Guide

OEM Guide

Difficulty

Moderate

Steps

Time Required

                          30 - 45 minutes

Sections

Samsung Galaxy S20 Back Cover Removal
13 steps
Wireless Charging Coil
6 steps
USB-C Charging Port and Daughterboard
6 steps

Flags

OEM Guide

iFixit collaborated with the manufacturer to make this guide.

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Introduction

The USB-C port is soldered to the daughterboard, so this repair will require you to replace the entire daughterboard.

Before you begin, refer to the Samsung Self-Repair document for safety information.

Note: Retaining water resistance after the repair will depend on how well you reapply the adhesive, but your device will lose its IP (Ingress Protection) rating.

What you need

Step 1

              Heat the bottom edge

Unplug and power off your phone before you begin.
Heat an iOpener and apply it to the back cover’s bottom edge for two minutes.
A hair dryer, heat gun, or hot plate may also be used, but be careful not to overheat the phone—the display and internal battery are both susceptible to heat damage.

Unplug and power off your phone before you begin.

Heat an iOpener and apply it to the back cover’s bottom edge for two minutes.

A hair dryer, heat gun, or hot plate may also be used, but be careful not to overheat the phone—the display and internal battery are both susceptible to heat damage.

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Step 2

              Separate the bottom edge adhesive

Apply a suction cup to the back of the phone, as close to the center of the bottom edge as possible.
If your display is badly cracked, covering it with a layer of clear packing tape may allow the suction cup to adhere. Alternatively, very strong tape may be used instead of the suction cup. If all else fails, you can superglue the suction cup to the broken screen.
Pull on the suction cup with strong, steady force to create a gap between the back cover and the frame.
Insert the point of an opening pick into the gap.
Due to tight tolerances, this may take multiple attempts of reheating with the iOpener and separating with the suction cup before you get it right.
If you are having trouble creating a gap, apply more heat to the edge and try again.
Do not apply excessive force with the pick, or you risk cracking the back cover glass.

Apply a suction cup to the back of the phone, as close to the center of the bottom edge as possible.

If your display is badly cracked, covering it with a layer of clear packing tape may allow the suction cup to adhere. Alternatively, very strong tape may be used instead of the suction cup. If all else fails, you can superglue the suction cup to the broken screen.

Pull on the suction cup with strong, steady force to create a gap between the back cover and the frame.

Insert the point of an opening pick into the gap.

Due to tight tolerances, this may take multiple attempts of reheating with the iOpener and separating with the suction cup before you get it right.

If you are having trouble creating a gap, apply more heat to the edge and try again.

Do not apply excessive force with the pick, or you risk cracking the back cover glass.

Step 3

Slide the pick back and forth along the bottom edge to slice through the adhesive.
Do not attempt to cut the adhesive near the corners of the phone where the glass is curved or you risk cracking the glass panel.
Leave your opening pick in the seam to prevent the adhesive from resealing.

Slide the pick back and forth along the bottom edge to slice through the adhesive.

Do not attempt to cut the adhesive near the corners of the phone where the glass is curved or you risk cracking the glass panel.

Leave your opening pick in the seam to prevent the adhesive from resealing.

Step 4

              Heat the left edge

Apply a heated iOpener to the left edge of the back cover for two minutes.

Apply a heated iOpener to the left edge of the back cover for two minutes.

Step 5

              Separate the left edge adhesive

Apply a suction cup to the back of the phone, as close to the center of the left edge as possible.
Pull on the suction cup with strong, steady force to create a gap between the back cover and the frame.
Insert the point of an opening pick into the gap.
As the glass on this edge is curved, you won’t be able to insert this pick very far. As long as the very tip of the pick is underneath the glass’s edge, you will be able to proceed.
Due to tight tolerances, this may take multiple attempts.
If you are having trouble creating a gap, apply more heat to the edge and try again.
You can try also applying a few drops of high concentration (over 90%) isopropyl alcohol into the seam to help loosen the adhesive.
Do not apply excessive force with the pick, or you risk cracking the back cover glass.

Apply a suction cup to the back of the phone, as close to the center of the left edge as possible.

As the glass on this edge is curved, you won’t be able to insert this pick very far. As long as the very tip of the pick is underneath the glass’s edge, you will be able to proceed.

Due to tight tolerances, this may take multiple attempts.

You can try also applying a few drops of high concentration (over 90%) isopropyl alcohol into the seam to help loosen the adhesive.

Step 6

Once the pick is underneath the glass’s edge, tilt it downward and insert it further to fully separate the back cover’s adhesive.

Once the pick is underneath the glass’s edge, tilt it downward and insert it further to fully separate the back cover’s adhesive.

Step 7

Slide the pick all along the left edge of the phone to separate the back cover’s adhesive.
Take care when sliding across the ridge in the frame surrounding the volume and power buttons—the cutout in the glass may make it more prone to cracking.
Leave your pick under the left edge of the glass near the top left corner to prevent the adhesive from resealing.

Slide the pick all along the left edge of the phone to separate the back cover’s adhesive.

Take care when sliding across the ridge in the frame surrounding the volume and power buttons—the cutout in the glass may make it more prone to cracking.

Leave your pick under the left edge of the glass near the top left corner to prevent the adhesive from resealing.

Step 8

              Heat the right edge

Apply a heated iOpener to the right edge of the back cover for two minutes.
A hair dryer, heat gun, or hot plate may also be used, but be careful not to overheat the phone—the display and internal battery are both susceptible to heat damage.

Apply a heated iOpener to the right edge of the back cover for two minutes.

Step 9

              Separate the right edge adhesive

Apply a suction cup to the back of the phone, as close to the center of the right edge as possible.
Pull on the suction cup with strong, steady force to create a gap between the back cover and the frame.
Insert the point of an opening pick into the gap.
Like with the previous edge, you will need to tilt the opening pick downward to fully insert it underneath the back cover.

Apply a suction cup to the back of the phone, as close to the center of the right edge as possible.

Like with the previous edge, you will need to tilt the opening pick downward to fully insert it underneath the back cover.

Step 10

Slide the pick all along the right edge of the phone to separate the back cover’s adhesive.
Leave your pick under the right edge of the glass near the top of the device to prevent the adhesive from resealing.
As you do this, the back cover may release one or both of the other picks and allow them to fall free. If this occurs, set the pick(s) aside as the bottom edge shouldn’t reseal from this point onward.

Slide the pick all along the right edge of the phone to separate the back cover’s adhesive.

Leave your pick under the right edge of the glass near the top of the device to prevent the adhesive from resealing.

As you do this, the back cover may release one or both of the other picks and allow them to fall free. If this occurs, set the pick(s) aside as the bottom edge shouldn’t reseal from this point onward.

Step 11

              Heat the top edge

Apply a heated iOpener to the top edge of the back cover for two minutes.

Apply a heated iOpener to the top edge of the back cover for two minutes.

Step 12

              Separate the top edge adhesive

The glass near the corners of the back cover is curved and very susceptible to cracking. Be gentle during this step to prevent damaging your back cover.
Gradually slide the pick from the right edge of the device around the top right corner.
Continue slicing along the top edge all the way to the top left corner to fully separate the back cover adhesive.
If the slicing becomes difficult at any point, stop and reapply heat before continuing.

The glass near the corners of the back cover is curved and very susceptible to cracking. Be gentle during this step to prevent damaging your back cover.

Gradually slide the pick from the right edge of the device around the top right corner.

Continue slicing along the top edge all the way to the top left corner to fully separate the back cover adhesive.

If the slicing becomes difficult at any point, stop and reapply heat before continuing.

Step 13

              Remove the back cover

Lift the back cover slowly. Use opening picks to slice any remaining adhesive.
Remove the back cover.
During reassembly:
This is a good point to power on your phone and test all functions before sealing it up. Be sure to power your phone back down completely before you continue working.
Remove any adhesive chunks with a pair of tweezers or your fingers. Apply heat if you’re having trouble separating the adhesive.
If you’re using Samsung custom-cut adhesives, follow this guide.
If you’re using double-sided tape, follow this guide.

Lift the back cover slowly. Use opening picks to slice any remaining adhesive.

Remove the back cover.

During reassembly:

This is a good point to power on your phone and test all functions before sealing it up. Be sure to power your phone back down completely before you continue working.

Remove any adhesive chunks with a pair of tweezers or your fingers. Apply heat if you’re having trouble separating the adhesive.

If you’re using Samsung custom-cut adhesives, follow this guide.

If you’re using double-sided tape, follow this guide.

Step 14

              Disconnect the wireless charging coil

Use a spudger to pry up and disconnect the wireless charging coil’s press connector on the motherboard.

Use a spudger to pry up and disconnect the wireless charging coil’s press connector on the motherboard.

Step 15

              Unfasten the motherboard bracket

Use a Phillips #00 screwdriver to remove the five 4 mm-long screws securing the motherboard bracket.
Throughout this repair, keep track of each screw and make sure it goes back exactly where it came from.
If you’re reassembling with the Samsung Self-Repair kit, be sure to replace the screws with new ones labeled #3373.

Use a Phillips #00 screwdriver to remove the five 4 mm-long screws securing the motherboard bracket.

Throughout this repair, keep track of each screw and make sure it goes back exactly where it came from.

If you’re reassembling with the Samsung Self-Repair kit, be sure to replace the screws with new ones labeled #3373.

Step 16

              Unclip the motherboard bracket

Use a pair of blunt-nose tweezers to gently pull up and unclip the motherboard bracket from the plastic midframe.
Do not completely remove the bracket yet, as its still attached to the wireless charging coil.

Use a pair of blunt-nose tweezers to gently pull up and unclip the motherboard bracket from the plastic midframe.

Do not completely remove the bracket yet, as its still attached to the wireless charging coil.

Step 17

              Unfasten the loudspeaker

Use a Phillips #00 screwdriver to remove the five 4 mm-long screws securing the loudspeaker and lower midframe.
If you’re reassembling with the Samsung Self-Repair kit, be sure to replace the screws with new ones labeled #3373.

Use a Phillips #00 screwdriver to remove the five 4 mm-long screws securing the loudspeaker and lower midframe.

Step 18

              Disconnect the loudspeaker

Insert the point of a spudger into the notch in the top left corner of the midframe and pry up to release the clips holding it in place.

Insert the point of a spudger into the notch in the top left corner of the midframe and pry up to release the clips holding it in place.

Step 19

              Remove the wireless charging coil

Insert the point of a spudger into the notch in the top left corner of the midframe and pry up to release the clips holding it in place.
Remove the wireless charging coil.

Remove the wireless charging coil.

Step 20

              Disconnect the battery

Use a spudger to pry up and disconnect the battery’s press connector on the motherboard.

Use a spudger to pry up and disconnect the battery’s press connector on the motherboard.

Step 21

              Disconnect the flex cables

Use a spudger to pry up and disconnect the primary and secondary flex cables from the motherboard.

Use a spudger to pry up and disconnect the primary and secondary flex cables from the motherboard.

Step 22

Use a spudger to pry up and disconnect the primary and secondary flex cables from the daughterboard near the bottom of the device.
To re-attach press connectors like this one, carefully align and press down on one side until it clicks into place, then repeat on the other side. Do not press down on the middle. If the connector is misaligned, the pins can bend, causing permanent damage.

Use a spudger to pry up and disconnect the primary and secondary flex cables from the daughterboard near the bottom of the device.

To re-attach press connectors like this one, carefully align and press down on one side until it clicks into place, then repeat on the other side. Do not press down on the middle. If the connector is misaligned, the pins can bend, causing permanent damage.

Step 23

              Remove the flex cables

Remove the primary and secondary flex cables.
Set the cables aside. You’ll reuse them during reassembly.

Remove the primary and secondary flex cables.

Set the cables aside. You’ll reuse them during reassembly.

Step 24

              Unfasten the daughterboard

Use a Phillips #00 screwdriver to remove the three 3.4 mm-long screws securing the USB-C port and daughterboard.
If you’re reassembling with the Samsung Self-Repair kit, be sure to replace the screws with new ones labeled #3396.

Use a Phillips #00 screwdriver to remove the three 3.4 mm-long screws securing the USB-C port and daughterboard.

If you’re reassembling with the Samsung Self-Repair kit, be sure to replace the screws with new ones labeled #3396.

Step 25

              Remove the daughterboard

Insert the pointed end of a spudger under the left edge of the daughterboard and pry up to release it from its recess.
Use a pair of tweezers to pull the daughterboard up and away from the bottom of the device and remove it.

Insert the pointed end of a spudger under the left edge of the daughterboard and pry up to release it from its recess.

Use a pair of tweezers to pull the daughterboard up and away from the bottom of the device and remove it.

To reassemble your device, follow the instructions in reverse order and perform the opposite actions, e.g., “reattach” instead of “removing.” Skip steps that use heating and prying, and pay close attention to the 📌 bullets as you work through the steps.

After you’ve completed the repair, download the Samsung Members App from the Galaxy Store or the Play Store, and Samsung Self-Repair document (beginning page 10) to make sure your device is fully functional.

Take your e-waste to an R2 or e-Stewards certified recycler.

Repair didn’t go as planned? Check out our Answers community for troubleshooting help.

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