Samsung Chromebook 4 Plus XE350XBA-K05US Device Motherboard Replacement

First, hold the power button on the keyboard until the device powers off.

Close the device and flip it over.

Remove the four rubber sockets on each corner of the device with your fingers.

Remove the four 4.6 mm Phillips #00 screws with a screwdriver.

Starting near the hinges, use a metal spudger to gently pry the back off. Continue along the edges until the back is completely detached.

Locate a long gray box labeled “Laptop Battery.”

Remove the two 4 mm Phillips #00 screws with a screwdriver.

After removing the screws, remove the gray piece labeled “bracket battery BA61 - 03983A.” This piece is located over the golden band connecting the battery and the motherboard.

Unplug the golden band that connects the battery to the motherboard.

Use the Phillips #000 screwdriver to remove the four 4 mm screws holding the battery in place.

Unplug the black and red wire and the black and white wire.

Unclip and remove the black and gold ribbons and the black wire from the motherboard.

Remove the three 4.53 mm Philips #00 screws from the grey metal piece labeled "BRKT-PORT-SUB JOAN-15 BA61-03942A".

Remove the 4.50 mm Philips #00 screw from the right side of the motherboard.

Remove the two 4.56 mm Philips #00 screws from the copper heat sink.

Remove the four 4.63 mm Philips #00 screws

Carefully turn the motherboard and heat sink over being careful not to touch any of the components.

Remove the four 4.63 mm Philips #00 screws from the back of the motherboard and remove the heat sink.