Samsung Galaxy S20 Ultra Battery Replacement

Unplug and power off your phone before starting.

• Apply a heated iOpener to the bottom edge of the back cover for two minutes.
• Alternatively, use a hair dryer or heat gun at a safe distance from overheating the phone, keeping in mind that the display and internal battery are vulnerable to heat damage.

Apply a suction cup to the phone's back near its center, bottom edge.

• If the back is badly cracked, use clear packing tape for better adhesion.
• Alternatively, apply strong tape instead of the suction cup.
• As a last resort, superglue the suction cup to the broken cover.

Pull on the suction cup with steady force to create a gap between the back cover and frame.

• Insert an opening pick into the gap created by the suction cup.
• Reheat the iOpener, then try again if needed.

Avoid applying excessive force with the pick to prevent cracking the back cover glass.

If creating a gap is difficult, apply more heat and try again.

Risk of cracking the glass panel if you attempt to cut near the curved edges.

• Slide the pick back and forth along the bottom edge to slice through the adhesive.
• Leave your opening pick in the seam to prevent resealing.

Apply a heated iOpener to the left edge of the back cover for 2 minutes.

Apply a suction cup near the center of the left edge.

• Pull on the suction cup with strong force to create a gap between the back cover and frame.
• Insert an opening pick into the gap, but only aim for the tip to clear the glass's edge due to its curvature.

Tight tolerances may require multiple attempts.

• If needed, apply more heat and try again.
• Alternatively, insert a few drops of high concentration (over 90%) isopropyl alcohol into the seam to loosen the adhesive.

Do not apply excessive force with the pick or risk cracking the back cover glass.

Insert the pick further under the glass's edge.

• Tilt the pick downward for a more effective separation of the back cover's adhesive.

Insert the pick at a 45-degree angle and slide it towards the bottom edge of the phone to release the back cover's adhesive.

• Leave the pick under the left edge of the glass near the bottom of the device, but do not remove it yet.
• This will prevent the adhesive from resealing.

Take care when sliding across the ridge in the frame surrounding the volume and power buttons, as the cutout in the glass may make it more prone to cracking.

• Insert a 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.

Leave your pick in place under the left edge of the glass near the top of the device to prevent the adhesive from resealing.

Apply a iOpener to the right edge of the back cover for 2 minutes.

• Alternatively, use a hair dryer, heat gun, or hot plate – but be cautious not to overheat.

Avoid overheating, which can damage the display and internal battery.

• Attach a suction cup to the phone's back near the center of the right edge.
• Pull on the suction cup firmly until a gap forms between the back cover and frame.
• Insert an opening pick into the gap, then tilt it downward for full insertion underneath the back cover.

Slide the picking tool towards the bottom edge of the phone.

• Separate the back cover's adhesive by applying gentle pressure.
• Leave the picking tool under the right edge of the glass, near the device's bottom, to prevent resealing.

Insert a pick under the center of the right edge of the back cover.

Gradually slide the pick upwards to separate the adhesive.

The bottom edge may release additional picks; set them aside if they do, as it won't reseal further.

Heat a iOpener and apply it to the top edge of the back cover for 2 minutes.

The curved glass near the corners is prone to cracking; be gentle during this step.

• Start by sliding a pick along the right edge of the device from top to bottom.
• Continue slicing along the top edge to separate the back cover adhesive fully.

If progress is difficult, stop and reapply heat before continuing.

Slowly lift the back cover.

• Use opening picks to slice any remaining adhesive.
• Remove the back cover.

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 necessary.

• If using Samsung custom-cut adhesives, follow the specified guide.
• If using double-sided tape, follow the specified guide.

Be cautious when disconnecting the wireless charging coil connector — risk of damaging nearby surface-mount components.

• Pry up and disconnect the wireless charging coil connector using a spudger.
• Avoid dislodging surrounding surface-mount components

Use a pair of tweezers to gently peel the wireless charging coil away from the device.

• Remove the wireless charging coil.
• During reassembly, reconnect the wireless charging coil connector first and then press the rest of the wireless charging coil down firmly into place.

Use a Phillips #00 screwdriver to remove the five 3.9 mm-long screws securing the motherboard bracket.

• Label each screw with its corresponding location for easy reinstallation.
• Store the removed screws in a safe place, ensuring they go back exactly where they came from.

Remove the motherboard bracket using a pair of tweezers.

Disconnect the battery connector using a spudger.

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

Insert the point of a spudger or tweezers into the notch in the top left corner of the midframe. Pry up to release the clips.

• Release the lower midframe and remove the loudspeaker.

Use a spudger to disconnect the main and auxiliary flex cables from the daughterboard near the bottom of the device.

• Re-attach press connectors by carefully aligning and pressing down on one side until it clicks into place, then repeat on the other side.
• Avoid pressing in the middle – if the connector is misaligned, the pins can bend, causing permanent damage.

Disconnect the main and auxiliary flex cables using a spudger.

• Pry up the main flex cable.
• Disconnect the auxiliary flex cable from the motherboard.

Remove the main flex cable and auxiliary flex cable by gently peeling them away.

Disconnect the left 5G antenna cable from the motherboard by prying it loose.

Disconnect the main display flex cable from the motherboard by prying it loose.

Peel up and gently bend the display and left 5G antenna flex cables to clear the motherboard and battery.

Overuse of isopropyl alcohol can damage the display.

• Apply 1-2 drops of high concentration (over 90%) isopropyl alcohol to gaps between frame and battery edges.
• Allow 1 minute for isopropyl alcohol to soften adhesive.

Apply a suction handle to the center of the battery.

• Hold the device steady with one hand on both top and bottom against your work surface.
• Firmly pull up on the suction handle with your other hand for 15 seconds at a time.
• If the battery doesn't loosen after multiple attempts, apply 1-2 drops of isopropyl alcohol along the top, left, and right edges, wait one minute, and try again.

Remove the battery.

• Peel up and scrape away remaining adhesive.
• Clean the battery well surface with isopropyl alcohol and lint-free cloth.

Wait ten minutes after using isopropyl alcohol for it to completely evaporate before installing the new battery.

• If your new battery doesn't have adhesive, apply some and press firmly into place during reassembly.
• Never reuse a removed battery; replace it with a new one to avoid potential safety hazards.