Samsung Galaxy S8 Active Iris Scanner Replacement

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

• Press gently to eject the SIM tray.
• Remove the SIM card tray from the device.
• Reinsert the SIM card tray: orient it with gold contacts up and notch to bottom right, then press gently into place.

Removing the back cover will compromise its waterproof seals.

• Have replacement adhesive on hand or avoid liquid exposure when reassembling.
• Remove four 3mm black 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.

Excessive heat can damage the OLED display, battery, and internal components.

• Apply gentle heat to the back edges with a heat gun (or an iFixit iOpener, hair dryer, or hot plate) to soften the adhesive.
• Heat for approximately one minute, being cautious not to overheat the device.

Handle the metal frame carefully as it may become hot to the touch.

Insert a Jimmy tool under the back cover's edge.

A suction handle provides no grip due to the back cover's texture.

• Place an opening pick in the seam to secure it against accidental closure.
• Cut slowly around the top, avoiding sensor cables and being cautious near the fingerprint sensor.

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

Use a opening pick to slice through any remaining adhesive.

• If replacement strips are available, use the Jimmy tool to remove remaining adhesive from the device frame.
• Open the back cover slightly and locate the fingerprint sensor flex cable connector.
• The fingerprint sensor cable is connected near the front-facing camera; avoid damaging it by gently removing the back cover.

Flip the cover slowly and set it aside.

Use the flat end of a spudger to disconnect the fingerprint flex cable.

• Remove the back cover.
• To reconnect the fingerprint sensor cable, angle the back cover until the flex cable aligns with its socket.
• Use the flat end of a spudger to snap the cable into place by pressing straight down.

• Remove 11 x 3.5mm screws with a Phillips #00 Screwdriver.
• Remove 2 x 2mm screws using the same Phillips #00 Screwdriver.

Remove the NFC antenna and charging coil assembly using the flat end of a spudger.

Disconnect the iris scanner flex cable from the motherboard with the flat end of a spudger.

• Lift the iris scanner gently using tweezers to remove it from its slot.