Samsung Galaxy S9 Battery Replacement

Be cautious not to overheat the phone, as the AMOLED display and internal battery can be damaged.

• Switch off your phone before proceeding.
• Apply a heated iOpener to a long edge for at least two minutes to loosen adhesive.
• Reheat and reapply the iOpener as needed, following instructions to avoid overheating.

If using an iOpener is ineffective, alternative heat sources like a hair dryer or heat gun can be used, but exercise care not to overheat the phone.

When cutting through the back cover's adhesive, avoid damaging the fingerprint sensor flex cable.

• Slice through thick portions of adhesive as indicated in the image.
• Target thin areas of adhesive for precise cutting.

Do not pry or slice in areas near the fingerprint sensor to prevent damage.

Apply strong tape or superglue to the suction cup if the cracked rear glass won't stick.

Lifting may require significant force; apply more heat as needed, but be aware that the adhesive cools quickly.

• Suction cup onto back cover, then lift bottom edge to create a small gap.
• Insert an opening pick into the gap and slide it to the bottom right corner.
• Add a second opening pick, sliding it to the bottom left corner.
• Use a third opening pick near the remaining adhesive to prevent resealing.

Insert the opening pick into the lower left corner.

• Guide it along the side edge towards the top.
• Rotate the pick around the top corner and secure it in place to prevent adhesive resealing.

Slide an opening pick from the bottom right corner along the side to the top.

Apply more heat if the adhesive becomes hard to cut — risk of breakage.

• Continue sliding the opening pick around the corner and cut the remaining adhesive at the top of the phone.
• Do not open the phone fully yet, as the fingerprint sensor cable still connects the back cover to the motherboard.

Disconnect the fingerprint sensor flex cable using the edge of a spudger.

• Lift the side of the rear glass where the volume button is located, being careful not to damage it.

Remove the rear glass.

• When reassembling, refer to the provided guide for replacing the adhesive and reinstalling the rear glass.
• If you plan to replace your rear glass, follow this guide to transfer the rear camera bezel, including the fingerprint.

Remove all eight Phillips #00 screws, 4mm in length.

• Insert a pick into the gap on the right side of the NFC antenna and charging coil cover.

• Careful not to damage the internal components.

  Twist or pry to release the plastic clips holding the cover in place.

Insert an opening pick under the left side of the plastic cover.

• Twist or pry to release the plastic clips that secure the cover.

Remove the plastic cover to access the NFC antenna and charging coil.

Use the flat end of a spudger to pry up and release the battery flex cable.

Apply an iOpener to loosen the battery adhesive for at least 2 minutes.

• Only apply the spudger in areas marked with green, where the battery adhesive is located.
• Avoid this area as it leads directly under the display, potentially causing damage.

Be cautious not to inadvertently damage the mid-frame or the display below the battery.

Using excessive force or metal tools can cause battery damage, leading to chemical leaks, fire, or explosion.

• Apply 1-2 drops of high-concentration isopropyl alcohol under each corner of the battery and let it penetrate for several minutes to loosen adhesives.
• Pry up the battery with a flat-ended spudger at the top left corner, where the flex cable is located.

Insert plastic spudger into top right corner of battery and gently pry upward.

Do not reuse a removed battery — risk of safety hazard.

• Remove the old battery.
• Allow ten minutes for isopropyl alcohol to evaporate before proceeding, if used.
• Install a new battery and follow the accompanying guide for adhesive installation.