Samsung Galaxy S25 Ultra Battery Replacement - Samsung Galaxy S25 Ultra

Step 1 | Safety precautions

A charged battery can catch fire if damaged, so let it drain below 25%.

Unplug all cables from your Galaxy phone.
Side key + Volume down button to power off your phone completely.

Step 2 | Cracked glass preparation

Cracked back glass can cause injury or complicate disassembly.

Apply packing tape strips to cover the cracked glass completely, ensuring it's contained and allowing the suction cup to stick.
Place a single strip of tape across the bottom edge, large enough for a suction cup to fit, without overlapping or sticking to the frame.

Wear safety glasses to protect your eyes from potential glass shards during the repair.

Step 3 | Heat the back cover

Follow the linked instructions carefully when using a heat gun.

Heat an iOpener for two minutes or use a hair dryer/heat gun to soften the adhesive.
Lay the heated iOpener/hair dryer on the bottom edge of the back cover.

Improper heat gun use can damage display and/or battery.

Step 4 | Adhesive information

Be cautious when separating the back cover from the frame, as the adhesive may be damaged.

Refer to the provided picture for guidance on separating the adhesive around the perimeter of the frame.
When using a tool, only insert it slightly near the cameras to avoid damaging them.

Step 5 | Apply a suction handle

Position the suction handle near the bottom edge of the back cover, as close to the edge as feasible.

Step 6 | Insert an opening pick

Apply firm, consistent pressure to the suction handle until a separation occurs between the back glass and the frame.

Be cautious when handling your phone as it may be hot.

Hold the phone down with your lifting hand's fingers, or use your free hand to steady the frame.
Insert the opening pick tip into the formed gap.

Step 7 | Separate the bottom edge adhesive

Apply heat to the stuck area and retry if necessary.

Opening pick: Slide it along the bottom edge to separate the adhesive.

Step 8 | Separate the right edge adhesive

Locate the bottom right corner of the device and use the opening pick to pry the adhesive loose, working your way along the right edge.

Step 9 | Separate the top edge adhesive

Insert a pick near the cameras, just a few millimeters deep.
Guide the pick around the top right corner and along the top edge to loosen the adhesive.

Step 10 | Separate the left edge adhesive

Insert an opening pick into the top left corner, then slide it downward along the left edge to gently pry apart the adhesive.

Step 11 | Remove the back cover

Use a suction handle to remove the back cover.
If stuck, go around perimeter with an opening pick and separate remaining adhesive.

Power on phone after reassembly, testing all functions, then power down completely before continuing.

Clean rear cameras of smudges with a lint-free cloth if necessary.
Apply replacement back cover adhesive to either frame or back cover. Use cutouts and contours for optimal placement.

Step 12 | Disconnect the wireless charging coil

Use the pointed end of a spudger to carefully pry up and release the wireless charging coil press connector.

Step 13 | Remove the wireless charging and loudspeaker screws

Keep track of each screw to ensure proper reassembly.

Remove ten screws using a Phillips screwdriver:

Four 3.5 mm-long screws for the wireless charging coil
Six 3.5 mm-long screws for the loudspeaker assembly

Failure to track and reseat screws properly may damage your phone.

Step 14 | Heat the wireless charging adhesive

Heating the iOpener may cause burns, handle with care.

Apply the iOpener to the tabs for 1 minute to loosen the adhesive.

Mild adhesive remains intact; proceed carefully when handling these components.

Step 15 | Detach the wireless charging coil tabs

Be extremely cautious not to puncture or dent the battery, as this can lead to chemical leakage or fire.

Use only blunt tools; sharp objects are strictly forbidden.
The tabs are very fragile; if you feel they're about to tear, apply more heat and retry.
Insert the spudger's point under the upper tab's top edge and lift slowly to separate it.

Step 16 | Detach the wireless charging coil tape

Repeat the procedure for the upper tab, but start from the bottom edge.

Step 17 | Pry up the loudspeaker

Use the pointed end of a spudger to carefully pry up the right side of the loudspeaker and release the clip.

During reassembly, press firmly around the entire perimeter of the loudspeaker with your thumbs to securely engage its clips.

Step 18 | Remove the wireless charging and loudspeaker assembly

Hold both sides of the wireless charging and loudspeaker assembly firmly.

Gently pry it away from its mount.
Once free, carefully lift the assembly out.

Step 19 | Disconnect the battery

Pry carefully — risk of damaging surface-mounted components.

Locate the gold arrow corresponding to each press connector for correct prying location.
Use a spudger's pointed tip to pry up and disconnect the battery press connector.

Step 20 | Disconnect the interconnect cables

Use the point of a spudger to gently pry up and release the two press connectors located at the top edge of the USB-C board.

Step 21

Avoid damaging small surface-mounted components by prying from short edges.

Disconnect the screen cable press connector at the bottom right using a spudger's point.

Step 22

Insert the point of a spudger between the press connector and motherboard.

Gently pry upwards on the press connector to release it from the motherboard.
The leftmost (skinny) interconnect cable should come free with the press connector.

Step 23

Pry only until disconnection occurs.

Use a spudger to carefully lift the wide interconnect cable press connector from the motherboard, located just to the right of the previous one.
Avoid prying too hard, which may damage the adhesive holding it in place.

Step 24 | Remove the skinny interconnect cable

Disconnect and remove the skinny interconnect cable.

Step 25 | Reposition the interconnect cable

Flip the widest interconnect cable upwards to clear the battery area.

Step 26 | Disconnect the screen cable

Use the point of a spudger to pry up and carefully release the screen cable press connector at the motherboard's bottom edge.

Step 27 | Remove the screen cable

Disconnect the screen cable.

Step 28 | Peel up the plastic battery tabs

Avoid damaging the battery with sharp or metal tools, as this can lead to chemical leaks or fires.

Use your fingers to carefully peel up the plastic tabs on the battery edges, starting at the black circular arrow markings.
If needed, use an opening pick tip to gently lift a tab until you can grasp it with your fingers.

Step 29 | Remove the battery

Hold the plastic tabs out of the way.

Do not force the battery out if stuck, check plastic tabs are fully retracted.

Remove any adhesive liners from the bottom of the replacement battery.
Temporarily reconnect the battery press connector to ensure proper seating.
Lay the battery into its recess and press down firmly to secure it.

Disconnect the battery before continuing.

Step 30 | Remove the old adhesive

Peel up the old battery sleeve slowly, taking most of the adhesive with it.

Do not use tools to remove remaining adhesive from the shiny metallic vapor chamber.

Gently peel away any remaining adhesive on the vapor chamber using your fingers and the small white tab near the top edge.
If adhesive remains on the frame, remove it with a spudger or your fingers.