Samsung Galaxy S II T989 Motherboard Replacement

Locate the rear cover tab, marked with a red outline.

• Gently pry the rear cover using your fingernail.

Locate the media card within the red rectangle, a small black card.

• Gently slide the card to the right using your fingers.
• The card should no longer be in contact with the metal.

Locate the SIM card, a small white rectangle within the larger red rectangle.

• Press down firmly on the SIM card.
• Slide the SIM card to the left, until it is no longer in contact with the metal.

• Turn off the phone.
• To remove the battery, apply upward pressure to the bottom right edge.

Be cautious, as the battery may be loose and pose a risk of electrical shock if mishandled.

• Once the battery starts to lift, use your hand to hold it in place for removal.

Remove the screws using a Philips head precision screwdriver. The screws are 1/16 of an inch (1.6 mm) in length.

• Place the removed screws on a magnetic mat or in a plastic bag to prevent loss.

Place device on grounded surface or use anti-static wrist band when removing inner plate.

• Remove screws from inner plate.
• Firmly pinch edge of inner plate and pull away from frame, as shown in picture.
• If necessary, use spudger to pry and lift plate out.

Be extremely careful when handling the motherboard, as it contains many delicate components.

• Undo the four tabs:
  • The three at the top indicated by red outlines can be done with a small flat-head screwdriver or your thumbnail.
  • The fourth tab is located at the bottom of the phone and must also be opened.

Careful handling is required when lifting the motherboard — risk of damage if dropped.

• Apply gentle pressure to the edges of the motherboard and lift upwards.
• If it does not lift, try wiggling it left and right to free the corners from the case screw areas.