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Introduction

Follow this guide to replace the screen and battery assembly on your Samsung Galaxy S20 with a genuine Samsung part.

This guide is written for the genuine Samsung screen and battery assembly. The assembly consists of the screen, battery, and frame together in one part. Be sure you have the right part before you begin the repair.

This guide is written with the Verizon UW model, which contains two mmWave antennas. If you don't have the UW model, skip the mmWave antenna steps.

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

If your battery is swollen, take appropriate precautions. Before disassembling your device, completely discharge the battery. This reduces the risk of a dangerous thermal event if the battery is accidentally damaged during the repair.

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.

  1. Galaxy S20 Screen and Battery Assembly Replacement, Eject the SIM tray: step 1, image 1 of 2 Galaxy S20 Screen and Battery Assembly Replacement, Eject the SIM tray: step 1, image 2 of 2
    • Insert a SIM card eject tool, bit, or a straightened paperclip into the hole on the SIM tray, located at the top edge of the phone next to the plastic antenna band.

    • If you inserted the tool into the other hole, don't worry—the microphone and the ingress gasket are mounted out of harm's way.

    • Press in firmly to eject the tray.

  2. Galaxy S20 Screen and Battery Assembly Replacement, Remove the SIM tray: step 2, image 1 of 2 Galaxy S20 Screen and Battery Assembly Replacement, Remove the SIM tray: step 2, image 2 of 2
    • Remove the SIM card tray.

    • The SIM card will fall out of the tray easily.

    • When you reinsert the SIM card, ensure that it is in the proper orientation relative to the tray.

    • A thin rubber gasket around the SIM tray provides water and dust protection. If this gasket is damaged or missing, replace the gasket or the entire SIM tray to protect your phone's internal components.

  3. Galaxy S20 Screen and Battery Assembly Replacement, Heat the bottom edge: step 3, image 1 of 1
    • 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.

  4. Galaxy S20 Screen and Battery Assembly Replacement, Separate the bottom edge adhesive: step 4, image 1 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Separate the bottom edge adhesive: step 4, image 2 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Separate the bottom edge adhesive: step 4, image 3 of 3
    • 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.

  5. Galaxy S20 Screen and Battery Assembly Replacement: step 5, image 1 of 3 Galaxy S20 Screen and Battery Assembly Replacement: step 5, image 2 of 3 Galaxy S20 Screen and Battery Assembly Replacement: step 5, image 3 of 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.

  6. Galaxy S20 Screen and Battery Assembly Replacement, Heat the left edge: step 6, image 1 of 1
    • Apply a heated iOpener to the left edge of the back cover for two minutes.

  7. Galaxy S20 Screen and Battery Assembly Replacement, Separate the left edge adhesive: step 7, image 1 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Separate the left edge adhesive: step 7, image 2 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Separate the left edge adhesive: step 7, image 3 of 3
    • 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.

  8. Galaxy S20 Screen and Battery Assembly Replacement: step 8, image 1 of 2 Galaxy S20 Screen and Battery Assembly Replacement: step 8, image 2 of 2
    • Once the pick is underneath the glass's edge, tilt it downward and insert it further to fully separate the back cover's adhesive.

  9. Galaxy S20 Screen and Battery Assembly Replacement: step 9, image 1 of 3 Galaxy S20 Screen and Battery Assembly Replacement: step 9, image 2 of 3 Galaxy S20 Screen and Battery Assembly Replacement: step 9, image 3 of 3
    • 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.

  10. Galaxy S20 Screen and Battery Assembly Replacement, Heat the right edge: step 10, image 1 of 1
    • 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.

  11. Galaxy S20 Screen and Battery Assembly Replacement, Separate the right edge adhesive: step 11, image 1 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Separate the right edge adhesive: step 11, image 2 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Separate the right edge adhesive: step 11, image 3 of 3
    • 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.

  12. Galaxy S20 Screen and Battery Assembly Replacement: step 12, image 1 of 3 Galaxy S20 Screen and Battery Assembly Replacement: step 12, image 2 of 3 Galaxy S20 Screen and Battery Assembly Replacement: step 12, image 3 of 3
    • 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.

  13. Galaxy S20 Screen and Battery Assembly Replacement, Heat the top edge: step 13, image 1 of 1
    • Apply a heated iOpener to the top edge of the back cover for two minutes.

  14. Galaxy S20 Screen and Battery Assembly Replacement, Separate the top edge adhesive: step 14, image 1 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Separate the top edge adhesive: step 14, image 2 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Separate the top edge adhesive: step 14, image 3 of 3
    • 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.

  15. Galaxy S20 Screen and Battery Assembly Replacement, Remove the back cover: step 15, image 1 of 2 Galaxy S20 Screen and Battery Assembly Replacement, Remove the back cover: step 15, image 2 of 2
    • 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.

  16. Galaxy S20 Screen and Battery Assembly Replacement, Disconnect the wireless charging coil: step 16, image 1 of 2 Galaxy S20 Screen and Battery Assembly Replacement, Disconnect the wireless charging coil: step 16, image 2 of 2
    • Use a spudger to pry up and disconnect the wireless charging coil's press connector on the motherboard.

    • 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.

  17. Galaxy S20 Screen and Battery Assembly Replacement, Unclip the motherboard bracket: step 18, image 1 of 2 Galaxy S20 Screen and Battery Assembly Replacement, Unclip the motherboard bracket: step 18, image 2 of 2
    • 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.

  18. Galaxy S20 Screen and Battery Assembly Replacement, Unfasten the loudspeaker: step 19, image 1 of 2 Galaxy S20 Screen and Battery Assembly Replacement, Unfasten the loudspeaker: step 19, image 2 of 2
    • 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.

  19. Galaxy S20 Screen and Battery Assembly Replacement, Disconnect the loudspeaker: step 20, image 1 of 2 Galaxy S20 Screen and Battery Assembly Replacement, Disconnect the loudspeaker: step 20, image 2 of 2
    • 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.

  20. Galaxy S20 Screen and Battery Assembly Replacement, Remove the wireless charging coil: step 21, image 1 of 2 Galaxy S20 Screen and Battery Assembly Replacement, Remove the wireless charging coil: step 21, image 2 of 2
    • 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.

  21. Galaxy S20 Screen and Battery Assembly Replacement, Disconnect the battery: step 22, image 1 of 2 Galaxy S20 Screen and Battery Assembly Replacement, Disconnect the battery: step 22, image 2 of 2
    • Use a spudger to pry up and disconnect the battery's press connector on the motherboard.

  22. Galaxy S20 Screen and Battery Assembly Replacement, Disconnect the flex cables: step 23, image 1 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Disconnect the flex cables: step 23, image 2 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Disconnect the flex cables: step 23, image 3 of 3
    • Use a spudger to pry up and disconnect the primary and secondary flex cables from the motherboard.

  23. Galaxy S20 Screen and Battery Assembly Replacement: step 24, image 1 of 3 Galaxy S20 Screen and Battery Assembly Replacement: step 24, image 2 of 3 Galaxy S20 Screen and Battery Assembly Replacement: step 24, image 3 of 3
    • 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.

  24. Galaxy S20 Screen and Battery Assembly Replacement, Remove the flex cables: step 25, image 1 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Remove the flex cables: step 25, image 2 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Remove the flex cables: step 25, image 3 of 3
    • Remove the primary and secondary flex cables.

    • Set the cables aside. You'll reuse them during reassembly.

  25. Galaxy S20 Screen and Battery Assembly Replacement, Unfasten the daughterboard: step 26, image 1 of 2 Galaxy S20 Screen and Battery Assembly Replacement, Unfasten the daughterboard: step 26, image 2 of 2
    • 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.

  26. Galaxy S20 Screen and Battery Assembly Replacement, Remove the daughterboard: step 27, image 1 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Remove the daughterboard: step 27, image 2 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Remove the daughterboard: step 27, image 3 of 3
    • 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.

  27. Galaxy S20 Screen and Battery Assembly Replacement, Heat the vibrator: step 28, image 1 of 1
    • Apply a heated iOpener to the bottom-right corner of the device for 90 seconds.

  28. Galaxy S20 Screen and Battery Assembly Replacement, Remove the vibrator: step 29, image 1 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Remove the vibrator: step 29, image 2 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Remove the vibrator: step 29, image 3 of 3
    • Insert the tip of a spudger between the frame and the notch in the vibrator's edge, close to the bottom edge of the device.

    • Pry up with the spudger to separate the vibrator from the frame.

    • Remove the vibrator.

    • Set the vibrator aside. You'll reuse it during reassembly.

  29. Galaxy S20 Screen and Battery Assembly Replacement, Vibrator reassembly instructions: step 30, image 1 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Vibrator reassembly instructions: step 30, image 2 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Vibrator reassembly instructions: step 30, image 3 of 3
    • During reassembly, follow these instructions to reinstall your vibrator:

    • Peel off the vibrator adhesive from its liner and apply the sticky end to the frame.

    • Use tweezers, or your fingers, to pull on the tab and expose the top layer of adhesive.

    • Insert the vibrator and apply pressure to adhere it to the frame.

  30. Galaxy S20 Screen and Battery Assembly Replacement, Unfasten the upper midframe: step 31, image 1 of 2 Galaxy S20 Screen and Battery Assembly Replacement, Unfasten the upper midframe: step 31, image 2 of 2
    • Use a Phillips #00 screwdriver to remove the four 4 mm-long screws securing the upper midframe.

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

  31. Galaxy S20 Screen and Battery Assembly Replacement, Remove the upper midframe: step 32, image 1 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Remove the upper midframe: step 32, image 2 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Remove the upper midframe: step 32, image 3 of 3
    • Insert the point of a spudger into the notch on the right side of the upper midframe and pry up to release the clips holding it into place.

    • Remove the upper midframe.

  32. Galaxy S20 Screen and Battery Assembly Replacement, Disconnect the left cables: step 33, image 1 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Disconnect the left cables: step 33, image 2 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Disconnect the left cables: step 33, image 3 of 3
    • Use a spudger to pry up and disconnect the left 5G mmWave antenna's press connector from the motherboard.

    • Repeat for the power button cable.

  33. Galaxy S20 Screen and Battery Assembly Replacement, Disconnect the front camera: step 34, image 1 of 2 Galaxy S20 Screen and Battery Assembly Replacement, Disconnect the front camera: step 34, image 2 of 2
    • Pry up and disconnect the front facing camera flex cable from the motherboard.

    • Bend the cable out of the way of the motherboard.

  34. Galaxy S20 Screen and Battery Assembly Replacement, Disconnect the front-facing sensor array: step 35, image 1 of 2 Galaxy S20 Screen and Battery Assembly Replacement, Disconnect the front-facing sensor array: step 35, image 2 of 2
    • Pry up and disconnect the front-facing sensor array cable from the motherboard.

    • Bend the cable out of the way of the motherboard.

  35. Galaxy S20 Screen and Battery Assembly Replacement, Disconnect the right 5G mmWave antenna: step 36, image 1 of 2 Galaxy S20 Screen and Battery Assembly Replacement, Disconnect the right 5G mmWave antenna: step 36, image 2 of 2
    • Use a spudger to pry up and disconnect the right 5G mmWave antenna's press connector.

  36. Galaxy S20 Screen and Battery Assembly Replacement, Disconnect the main display cable: step 37, image 1 of 2 Galaxy S20 Screen and Battery Assembly Replacement, Disconnect the main display cable: step 37, image 2 of 2
    • Use a spudger to pry up and disconnect the main display flex cable from the motherboard.

  37. Galaxy S20 Screen and Battery Assembly Replacement, Reposition the display cable: step 38, image 1 of 2 Galaxy S20 Screen and Battery Assembly Replacement, Reposition the display cable: step 38, image 2 of 2
    • Gently peel up and bend the display flex cable out of the way of the motherboard and battery.

  38. Galaxy S20 Screen and Battery Assembly Replacement, Reposition the left 5G cable: step 39, image 1 of 2 Galaxy S20 Screen and Battery Assembly Replacement, Reposition the left 5G cable: step 39, image 2 of 2
    • Use tweezers, or your fingers, to gently peel the left 5G cable away from the device.

  39. Galaxy S20 Screen and Battery Assembly Replacement, Unfasten the motherboard assembly: step 40, image 1 of 2 Galaxy S20 Screen and Battery Assembly Replacement, Unfasten the motherboard assembly: step 40, image 2 of 2
    • Use a Phillips #00 screwdriver to remove the two screws securing the motherboard and camera assembly:

    • One 4 mm-long screw

    • One 3 mm-long screw

    • If you're reassembling with the official Samsung kit, be sure to replace the screw with new ones:

    • Screw #3373

    • Screw #1530

  40. Galaxy S20 Screen and Battery Assembly Replacement, Remove the motherboard assembly: step 41, image 1 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Remove the motherboard assembly: step 41, image 2 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Remove the motherboard assembly: step 41, image 3 of 3
    • Insert the flat end of a spudger into the bottom left corner of the motherboard assembly and pry up to release it from the phone body.

    • Remove the motherboard assembly.

  41. Galaxy S20 Screen and Battery Assembly Replacement, Heat the front camera: step 42, image 1 of 1
    • Apply a heated iOpener to the front camera for 90 seconds.

  42. Galaxy S20 Screen and Battery Assembly Replacement, Remove the front camera: step 43, image 1 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Remove the front camera: step 43, image 2 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Remove the front camera: step 43, image 3 of 3
    • Insert a spudger into the gap between the frame and the front camera.

    • Pry up with the spudger to separate the front camera from the frame.

    • If you're having trouble separating the front camera from the frame, apply more heat.

    • Use tweezers, or your fingers, to remove the front camera.

    • Set the camera aside. You'll reuse it during reassembly.

  43. Galaxy S20 Screen and Battery Assembly Replacement, Front camera reassembly instructions: step 44, image 1 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Front camera reassembly instructions: step 44, image 2 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Front camera reassembly instructions: step 44, image 3 of 3
    • During reassembly, follow these instructions to reinstall your front camera:

    • Peel off the front camera adhesive from its liner and apply the sticky end to the frame.

    • Use tweezers, or your fingers, to pull on the tab and expose the top layer of adhesive.

    • Insert the front camera and apply pressure to adhere it to the frame.

  44. Galaxy S20 Screen and Battery Assembly Replacement, Unfasten the 5G mmWave antennas: step 45, image 1 of 2 Galaxy S20 Screen and Battery Assembly Replacement, Unfasten the 5G mmWave antennas: step 45, image 2 of 2
    • Use a Phillips screwdriver to remove the three 3.4 mm-long screws securing the 5G mmWave antennas.

  45. Galaxy S20 Screen and Battery Assembly Replacement, Remove the right 5G mmWave antenna: step 46, image 1 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Remove the right 5G mmWave antenna: step 46, image 2 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Remove the right 5G mmWave antenna: step 46, image 3 of 3
    • Use the point of a spudger to pry up on the 5G mmWave antenna bracket's bottom screw tab.

    • Use tweezers, or your fingers, to remove the 5G mmWave antenna.

    • Set the antenna aside. You'll reuse it during reassembly.

  46. Galaxy S20 Screen and Battery Assembly Replacement, Remove the left 5G mmWave antenna: step 47, image 1 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Remove the left 5G mmWave antenna: step 47, image 2 of 3 Galaxy S20 Screen and Battery Assembly Replacement, Remove the left 5G mmWave antenna: step 47, image 3 of 3
    • Use the point of a spudger to pry up on the 5G mmWave antenna bracket's top edge.

    • Use tweezers, or your fingers, to remove the 5G mmWave antenna.

    • Set the antenna aside. You'll reuse it during reassembly.

  47. Galaxy S20 Screen and Battery Assembly Replacement, Only the screen and battery assembly remains: step 48, image 1 of 1
    • You're now left with the screen and battery assembly.

    • Compare your new replacement part to the original part—you may need to transfer remaining components or remove adhesive backings from the new part before you install it.

Conclusion

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 follow the Samsung Self-Repair document (beginning page 9) to make sure your device is fully functional.

Download the Galaxy Cal app on your device and follow the Samsung Self-Repair document (beginning page 24) to perform a battery cycle reset.

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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