SONY Ericsson W890i Motherboard Replacement

Flick the two lock tabs into the unlocked positions by pushing each button forward.

Pop the back cover up using the groove on the top of the phone.

You can now access the phone's battery.

Using a spudger, remove the battery and set it aside.

Remove the two small rubber pieces that cover the lower screws.

Using a T-6 Torx wrench or screwdriver, remove all four of the small screws at the top and bottom corners on the back of the phones.

Gently pry off the faceplate using a plastic opening tool.

Insert the plastic opening tool into the middle of the front and back panels of the phone.

Separate the front and back panels that were pryed open with the plastic opening tool.

Now that the faceplate is off, use tweezers to separate the backplate from the inner manifold.

With both insides of the phone exposed, gently detach the ribbon cable connecting the two inner sides. You can now separate the two sides of the phone.

The motherboard is located on the side with the green and black bumper on the bottom. Use the plastic opening tool to pry the bumper off.

To remove the motherboard, apply upwards pressure on the bottom green tab.