소개
Use this guide to replace the USB-C charging port and daughterboard in your Samsung Galaxy S21.
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.
필요한 것
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Insert a SIM eject tool, bit, or straightened paper clip into the SIM card tray hole on the bottom edge of the phone.
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Press the SIM eject tool into the SIM card tray hole to eject the SIM card tray.
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Remove the SIM card tray.
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Heat an iOpener and apply it to the back cover's bottom edge for two minutes.
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Apply a suction cup to the back of the phone, as close to the center of the bottom edge as possible.
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Pull up on the suction cup with strong, steady force to create a gap between the back cover and the frame.
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Insert an opening pick into the gap.
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Slide the pick back and forth along the bottom edge to slice through the adhesive.
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Leave the pick in to prevent the adhesive from resealing.
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Apply a suction cup to the back of the phone, as close to the center of the left edge as possible.
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Pull up on the suction cup with strong, steady force to create a gap between the back cover and the frame.
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Insert an opening pick into the gap.
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Apply a suction cup to the back of the phone, as close to the center of the right edge as possible.
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Pull up on the suction cup with strong, steady force to create a gap between the back cover and the frame.
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Insert an opening pick into the gap.
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Rotate the right-edge opening pick around the top-right corner of the phone.
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Slide the top-most opening pick as close to the camera shell as possible.
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Repeat for the left-edge pick.
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Heat an iOpener and apply it to the camera shell for two minutes.
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There's additional adhesive to the right of the camera that you need to cut through.
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Angle the pick downward to avoid any damage.
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Rotate the back cover counterclockwise to create a gap between the camera shell and the frame.
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Insert an opening pick in the gap.
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Remove the back cover.
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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.
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Remove any adhesive chunks with a pair of tweezers or your fingers. Apply heat if you're having trouble separating the adhesive.
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If you're using custom-cut adhesives, follow this guide.
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If you're using double-sided tape, follow this guide.
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Use a Phillips screwdriver to remove the five 4 mm-long screws securing the motherboard bracket to the frame.
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이 단계에 사용된 도구:Tweezers$4.99
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Use a pair of tweezers to gently pull up and unclip the motherboard bracket from the frame.
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While using tweezers, or your fingers, to hold the motherboard bracket out of the way, use a spudger to pry up the battery press connector.
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While holding the motherboard bracket out of the way, use a spudger to pry up and disconnect the wireless charging coil's press connector.
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Use a Phillips screwdriver to remove the six 4 mm-long screws securing the loudspeaker to the frame.
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Insert the point of a spudger into the notch in the top-left corner of the loudspeaker and pry up to release the clips holding it in place.
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Use the flat end of a spudger to pry up and disconnect the primary interconnect cable's press connector.
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Use the flat end of a spudger to pry up and disconnect the secondary interconnect cable's press connector.
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Use a spudger to pry up and disconnect the secondary interconnect cable's press connector.
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Repeat for the main interconnect cable's press connector.
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이 단계에 사용된 도구:Tweezers$4.99
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Use tweezers or your fingers to remove both cables.
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Use a Phillips screwdriver to remove the three 3.5 mm-long screws securing the daughterboard to the frame.
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Use the point of a spudger to pry up the daughterboard.
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Use your fingers to pull the daughterboard up and away from the bottom of the phone and remove it.
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To reassemble your device, follow these instructions in reverse order.
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.
To reassemble your device, follow these instructions in reverse order.
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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댓글 2개
Ive dome this with 3 boards from amazon and ebay and thay all turn off signal. the usb charging port works on replacements but sim and service do not work. Should a new daughter board work instantly? im having to go back to the broken usb port board and charge via wireless for weeks on end since no boards work correctly.
I purchased the "Fix Kit" which includes an OEM daughter board from Samsung. This board worked instantly with no issues. SIM cards in these phones might not work with the un-official boards you're getting from Amazon, or there is another issue causing them not to work for your phone.
You can get away with purchasing the part-only option instead of the whole kit. The only tool included that might be hard to source is the suction cup. Otherwise, you can use a hair dryer, thin plastic pieces (guitar picks are cheap) and a small screw driver to do this repair. Sounds like you would already have all the tools needed.
