Introduction
Pre-req guide on removing the main flex cables from the Galaxy S20 Ultra.
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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 on the suction cup with strong, steady force to create a gap between the back cover and the frame.
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Insert the point of 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 your opening pick in the seam 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 on the suction cup with strong, steady force to create a gap between the back cover and the frame.
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Insert the point of an opening pick into the gap.
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You can try also applying a few drops of high concentration (over 90%) isopropyl alcohol into the seam to help loosen the adhesive.
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Once the pick is underneath the glass's edge, tilt it downward and insert it further to fully separate the back cover's adhesive.
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Slide the pick towards the bottom edge of the phone to separate the back cover's adhesive.
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Leave your pick under the left edge of the glass near the bottom of the device to prevent the adhesive from resealing.
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Insert another pick under the center of the left edge of the back cover.
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Gradually slide the pick towards the top of the device to separate the back cover's adhesive.
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Leave your pick under the left edge of the glass near the top of the device 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 right edge as possible.
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Pull on the suction cup with strong, steady force to create a gap between the back cover and the frame.
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Insert the point of an opening pick into the gap.
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Slide the pick towards the bottom edge of the phone to separate the back cover's adhesive.
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Leave your pick under the right edge of the glass near the bottom of the device to prevent the adhesive from resealing.
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Insert another pick underneath the center of the right edge of the back cover.
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Gradually slide the pick towards the top of the device to separate the back cover's adhesive.
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Gradually slide the pick from the right edge of the device around the top right corner.
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Continue slicing along the top edge to fully separate the back cover adhesive.
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Lift the back cover slowly. Use opening picks to slice any remaining adhesive.
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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.
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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 Samsung 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 pair of tweezers to gently peel the wireless charging coil away from the device.
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Remove the wireless charging coil.
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Use a Phillips #00 screwdriver to remove the five 3.9 mm-long screws securing the motherboard bracket.
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Use a Phillips #00 screwdriver to remove the five 3.9 mm-long screws securing the loudspeaker and lower midframe.
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Insert the point of a spudger or a pair of tweezers into the notch in the top left corner of the midframe and pry up to release the clips holding it in place.
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Remove the loudspeaker and lower midframe.
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Use a spudger to pry up and disconnect the main and auxiliary flex cables from the daughterboard near the bottom of the device.
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Use a spudger to pry up and disconnect the main and auxiliary flex cables from the motherboard.
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To reassemble your device, follow these instructions in reverse order.
