Samsung Galaxy S8 Active Battery Replacement - Samsung Galaxy S8 Active

Step 1 | SIM Tray/Card

Insert the SIM card ejector tool or an unfolded paperclip into the small hole on the left side of the phone's top edge.

Press gently to eject the SIM tray, taking care not to damage it.

Remove the SIM card tray from the device.
To reinsert: orient the SIM card with gold contacts facing up and notch at bottom right.

Press the card gently into the SIM tray slot to avoid damaging it.

Step 2 | NFC Antenna and Charging Coil Assembly

Compromising the waterproof seals by removing the back cover may result in water damage.

Have replacement adhesive ready or avoid exposure to liquids when reassembling the device.

Remove four black 3mm screws from the outside edges using a TR6 Torx Security Screwdriver.

Take off the rubber bumpers from the top and bottom edges of the device.

Step 3

Apply gentle heat to the back edges using a heat gun, iFixit iOpener, hair dryer, or hot plate.

Heat for about one minute to soften adhesive.
Be cautious, as metal frame may become hot.

Avoid overheating, which can damage OLED display, battery, or internal components.

Step 4

Insert a Jimmy tool under the edge of the back cover.

A suction handle will not provide sufficient grip due to the texture of the back cover.

Insert an opening pick into the seam, holding it in place if needed.
Carefully cut around the top section with a slow and steady motion.

Be cautious not to damage cables for the fingerprint sensor and camera.

Slide the Jimmy tool down both sides, carefully separating the adhesive.

Step 5

Use the opening pick to cut through any remaining adhesive.

If replacing adhesive strips, remove leftover adhesive from the frame with a Jimmy tool.
Open the back cover slightly until you see the fingerprint sensor flex cable connector.
Pull the back cover off gently to avoid damaging the finger print sensor cable, which is located near the front-facing camera at the top of the phone.

Step 6

Flip the cover over slowly and set it aside.

Disconnect the fingerprint flex cable with the flat end of a spudger.
Remove the back cover.

When reassembling, align the back cover to ensure proper alignment of the fingerprint sensor cable.

Reconnect the fingerprint sensor cable by angling the back cover and using the flat end of a spudger to snap it in place with gentle downward pressure.

Step 7

Remove 11 3.5 mm screws with a Phillips #00 Screwdriver.
Remove 2 2mm screws with a Phillips #00 Screwdriver.

Step 8

Use a flat-ended spudger to gently pry out the NFC antenna and charging coil assembly.

Step 9 | Loudspeaker Assembly

Remove the loudspeaker assembly with the flat end of a spudger.

Step 10 | Battery

Disconnect the battery flex cable with the flat end of a spudger.

Step 11

Position a heated iOpener across the top of the battery for 3 minutes to loosen adhesive.

If you have multiple iOpeners, place one on the screen side as well.
Alternatively, apply 1-2 drops of high-concentration isopropyl alcohol under each corner of the battery and let it penetrate for several minutes.

Using too much alcohol can damage the display.

As an alternative, use a hair dryer or heat gun to soften adhesive, but be cautious not to overheat the battery.
The metal frame will become hot; handle with care.

Step 12

Industrial-grade adhesive requires firm pressure — risk of damage.

Use a spudger's flat end with steady pressure to pry up on the battery's bottom.
Wait ten minutes after isopropyl alcohol treatment before installing the new battery to allow complete evaporation.