Einleitung
Use this guide to remove the daughterboard on your Samsung Galaxy A53 5G.
For your safety, discharge the battery below 25% before disassembling your phone. This reduces the risk of fire if the battery is accidentally damaged during the repair. If your battery is swollen, take appropriate precautions.
If you do not replace the adhesive seals when reassembling, your device will function normally, but will most likely lose its water protection.
You’ll need replacement adhesive to reattach components when reassembling the device.
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Prepare an iOpener and apply it to the back cover for at least two minutes to loosen the adhesive underneath.
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Secure a suction handle to the right edge of the back cover, as close to the edge as possible.
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Lift the back cover with the suction handle to create a small gap between the back cover and the frame.
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Insert an opening pick into the gap you created.
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Slide the opening pick to the top right corner to slice the adhesive.
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Leave the opening pick in place to prevent the adhesive from resealing.
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Insert a second opening pick at the top right edge of your phone.
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Slide the opening pick to the bottom right corner to slice the adhesive.
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Leave the opening picks in place to prevent the adhesive from resealing.
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Insert a third opening pick at the bottom right corner of your phone.
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Slide the opening pick along the bottom edge of your phone to slice the adhesive.
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Leave the opening pick in the bottom left corner to prevent the adhesive from resealing.
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Insert a fourth opening pick at the bottom left corner of your phone.
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Slide the opening pick along the left edge to slice the adhesive.
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Leave the opening pick in the top left corner to prevent the adhesive from resealing.
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Insert a fifth opening pick at the top left corner.
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Slide the opening pick along the top edge of the back cover to slice the remaining adhesive.
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Use a Phillips screwdriver to remove the eight 3.9 mm-long screws securing the motherboard cover.
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Insert the flat end of an spudger into the gap between the frame and the motherboard cover on the right edge.
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Use the spudger to pry up the motherboard cover.
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Use a spudger to disconnect the battery cable by prying the connector straight up from its socket.
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Use a Phillips screwdriver to remove the seven 3.9 mm-long screws securing the loudspeaker assembly.
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Insert the flat end of a spudger into the gap between the right edge of the loudspeaker assembly and the midframe.
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Use your spudger to pry up the loudspeaker assembly.
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Remove the loudspeaker assembly.
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Prepare an iOpener and apply it to the display for at least two minutes to loosen the adhesive underneath.
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Use the flat end of a spudger to disconnect the fingerprint sensor from the daughterboard.
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Use the flat end of a spudger to pry the fingerprint sensor straight out of its socket.
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Use a pair of tweezers or your fingers to remove the fingerprint sensor.
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Use a pair of blunt nose tweezers to pull up and disconnect the black and white antenna cables from the daughterboard.
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Use the flat end of a spudger to pry the two interconnect cable connectors straight up from their sockets on the daugtherboard.
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Insert a SIM card eject tool or a paperclip into the small hole in the SIM card tray, located on the bottom right corner of the phone.
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Press firmly to eject the tray.
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Remove the SIM card tray from the phone.
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Use a Phillips screwdriver to remove the two 2.9 mm-long screws securing the daughterboard.
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If possible, turn on your device and test your repair before installing new adhesive and resealing.
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? Try some basic troubleshooting, or ask our Answers community for help.
