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Introduction

Follow this guide to replace the screen and battery assembly on your Samsung Galaxy S20 Ultra 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.

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.

Some images in this guide may show minor discontinuities. They should not affect the overall guide procedure.

  1. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Eject the SIM Tray: step 1, image 1 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Eject the SIM Tray: step 1, image 2 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Eject the SIM Tray: step 1, image 3 of 3
    • 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. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the SIM Tray: step 2, image 1 of 2 Samsung Galaxy S20 Ultra 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. Samsung Galaxy S20 Ultra 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. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Separate the bottom edge adhesive: step 4, image 1 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Separate the bottom edge adhesive: step 4, image 2 of 3 Samsung Galaxy S20 Ultra 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 the back cover 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 cover.

    • 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. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Slice the adhesive: step 5, image 1 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Slice the adhesive: step 5, image 2 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Slice the adhesive: 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. Samsung Galaxy S20 Ultra 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. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Separate the left edge adhesive: step 7, image 1 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Separate the left edge adhesive: step 7, image 2 of 3 Samsung Galaxy S20 Ultra 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. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement: step 8, image 1 of 2 Samsung Galaxy S20 Ultra 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. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement: step 9, image 1 of 2 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement: step 9, image 2 of 2
    • Slide the pick towards the bottom edge of the phone to separate the back cover's adhesive.

    • Leave your pick under the left edge of the glass near the bottom of the device to prevent the adhesive from resealing.

  10. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement: step 10, image 1 of 2 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement: step 10, image 2 of 2
    • Insert another pick under the center of the left edge of the back cover.

    • Gradually slide the pick towards the top of the device 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 of the device to prevent the adhesive from resealing.

  11. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Heat the right edge: step 11, 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.

  12. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Separate the right edge adhesive: step 12, image 1 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Separate the right edge adhesive: step 12, image 2 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Separate the right edge adhesive: step 12, 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.

  13. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement: step 13, image 1 of 2 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement: step 13, image 2 of 2
    • Slide the pick towards the bottom edge of the phone to separate the back cover's adhesive.

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

  14. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement: step 14, image 1 of 2 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement: step 14, image 2 of 2
    • Insert another pick underneath the center of the right edge of the back cover.

    • Gradually slide the pick towards the top of the device to separate the back cover's adhesive.

    • As you do this, the bottom edge of the back cover may release the three picks located there. If this occurs, set these picks aside as the bottom edge shouldn't reseal from this point onward.

  15. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Heat the top edge: step 15, image 1 of 1
    • Apply a heated iOpener to the top edge of the back cover for two minutes.

  16. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Separate the top edge adhesive: step 16, image 1 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Separate the top edge adhesive: step 16, image 2 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Separate the top edge adhesive: step 16, 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 to fully separate the back cover adhesive.

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

  17. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the back cover: step 17, image 1 of 2 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the back cover: step 17, 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.

    • 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.

  18. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Disconnect the wireless charging coil: step 18, image 1 of 2 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Disconnect the wireless charging coil: step 18, image 2 of 2
    • Use a spudger to pry up and disconnect the wireless charging coil connector.

    • When you disconnect connectors like these, be careful not to dislodge the small surface-mounted components surrounding the socket.

    • Use a Phillips #00 screwdriver to remove the five 3.9 mm-long screws securing the loudspeaker and lower midframe.

    • 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.

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

    • Pry up to release the clips holding it in place.

  20. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the wireless charging coil: step 21, image 1 of 2 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the wireless charging coil: step 21, image 2 of 2
    • Use tweezers, or your fingers, to gently peel the wireless charging coil away from the device.

    • Remove the wireless charging coil.

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

  21. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Unfasten the motherboard bracket: step 22, image 1 of 2 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Unfasten the motherboard bracket: step 22, image 2 of 2
    • Use a Phillips #00 screwdriver to remove the five 3.9 mm-long screws securing the motherboard bracket.

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

  22. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the motherboard bracket: step 23, image 1 of 2 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the motherboard bracket: step 23, image 2 of 2
    • Use a pair of blunt-nose tweezers to unclip and remove the motherboard bracket.

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

  23. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Disconnect the battery: step 24, image 1 of 2 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Disconnect the battery: step 24, image 2 of 2
    • Use a spudger to pry up and disconnect the battery connector.

  24. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Disconnect the daughterboard: step 25, image 1 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Disconnect the daughterboard: step 25, image 2 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Disconnect the daughterboard: step 25, image 3 of 3
    • Use a spudger to pry up and disconnect the primary and secondary interconnect 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.

  25. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Disconnect the flex cables: step 26, image 1 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Disconnect the flex cables: step 26, image 2 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Disconnect the flex cables: step 26, image 3 of 3
    • Use a spudger to pry up and disconnect the primary and secondary interconnect cables from the motherboard.

  26. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the flex cables: step 27, image 1 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the flex cables: step 27, image 2 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the flex cables: step 27, image 3 of 3
    • Gently peel up and remove the primary and secondary interconnect cables.

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

  27. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Unfasten the daughterboard: step 28, image 1 of 2 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Unfasten the daughterboard: step 28, image 2 of 2
    • Use a Phillips #00 screwdriver to remove the three 3.7 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.

  28. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the daughterboard: step 29, image 1 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the daughterboard: step 29, image 2 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the daughterboard: step 29, 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 tweezers, or your fingers, to pull the daughterboard up and away from the bottom of the device and remove it.

  29. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Heat the vibrator: step 30, image 1 of 1
    • Apply a heated iOpener to the bottom-right of the device for 90 seconds.

  30. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the vibrator: step 31, image 1 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the vibrator: step 31, image 2 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the vibrator: step 31, 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.

  31. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Vibrator reassembly instructions: step 32, image 1 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Vibrator reassembly instructions: step 32, image 2 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Vibrator reassembly instructions: step 32, 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 bottom of the vibrator.

    • Use tweezers, or your fingers, to pull up on the white liner to expose the top layer of adhesive.

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

    • The adhesive is very thin and hard to distinguish from the liner. Use your fingers to check if the adhesive transferred correctly.

  32. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Disconnect the left 5G mmWave antenna: step 33, image 1 of 2 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Disconnect the left 5G mmWave antenna: step 33, image 2 of 2
    • Pry up and disconnect the left 5G mmWave antenna connector from the motherboard.

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

  34. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Reposition the display and 5G mmWave cables: step 35, image 1 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Reposition the display and 5G mmWave cables: step 35, image 2 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Reposition the display and 5G mmWave cables: step 35, image 3 of 3
    • Gently peel up and bend the display and left 5G mmWave antenna flex cables out of the way of the motherboard and battery.

  35. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Unfasten the upper midframe: step 36, image 1 of 2 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Unfasten the upper midframe: step 36, image 2 of 2
    • Use a Phillips #00 screwdriver to remove the four 3.9 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.

  36. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the upper midframe: step 37, image 1 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the upper midframe: step 37, image 2 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the upper midframe: step 37, 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.

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

  37. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Disconnect the right 5G mmWave antenna: step 38, image 1 of 2 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Disconnect the right 5G mmWave antenna: step 38, image 2 of 2
    • Pry up and disconnect the right 5G mmWave antenna flex cable from the motherboard.

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

  38. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Disconnect the side button cable: step 39, image 1 of 2 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Disconnect the side button cable: step 39, image 2 of 2
    • Pry up and disconnect the side button flex cable from the motherboard.

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

  39. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Disconnect the front camera: step 40, image 1 of 2 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Disconnect the front camera: step 40, image 2 of 2
    • Pry up and disconnect the front camera flex cable from the motherboard.

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

  40. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the upper 5G mmWave antenna: step 41, image 1 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the upper 5G mmWave antenna: step 41, image 2 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the upper 5G mmWave antenna: step 41, image 3 of 3
    • The upper 5G mmWave antenna is lightly adhered to the motherboard.

    • Pry up and disconnect the upper 5G mmWave antenna cable from the motherboard.

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

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

    • During reassembly, reconnect the antenna connector first to properly align it into place, then firmly press the rest of the antenna module down to adhere it.

  41. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Unfasten the motherboard assembly: step 42, image 1 of 2 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Unfasten the motherboard assembly: step 42, image 2 of 2
    • Use a Phillips #00 screwdriver to remove the two 3.9 mm-long screws securing the motherboard and camera assembly.

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

  42. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the motherboard assembly: step 43, image 1 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the motherboard assembly: step 43, image 2 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the motherboard assembly: step 43, image 3 of 3
    • Insert the point 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.

  43. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Heat the front camera: step 44, image 1 of 1
    • Apply a heated iOpener to the front camera for 90 seconds.

  44. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the front camera: step 45, image 1 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the front camera: step 45, image 2 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the front camera: step 45, 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; it may take a while for the adhesive to loosen.

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

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

  45. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Front camera reassembly instructions: step 46, image 1 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Front camera reassembly instructions: step 46, image 2 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Front camera reassembly instructions: step 46, 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.

  46. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Unfasten the 5G mmWave antennas: step 47, image 1 of 2 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Unfasten the 5G mmWave antennas: step 47, image 2 of 2
    • Use a Phillips screwdriver to remove the four 3.4 mm-long screws securing the 5G mmWave antennas.

    • If you're reassembling with the Samsung Self-Repair kit, be sure to replace the screws with new ones labeled #3394.

  47. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the right 5G mmWave antenna: step 48, image 1 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the right 5G mmWave antenna: step 48, image 2 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the right 5G mmWave antenna: step 48, 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.

  48. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the left 5G mmWave antenna: step 49, image 1 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the left 5G mmWave antenna: step 49, image 2 of 3 Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Remove the left 5G mmWave antenna: step 49, 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.

  49. Samsung Galaxy S20 Ultra Screen and Battery Assembly Replacement, Only the screen and battery assembly remains: step 50, 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 installing.

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.

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

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.

Repair didn’t go as planned? Try some basic troubleshooting, or ask our Answers community for help.

One other person completed this guide.

Alex Diaz-Kokaisl

Member since: 01/16/2022

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