Unscrew the two 6.8 mm Phillips #00 screws located on the motherboard.

When separating the motherboard from the front cover, be careful not to separate the two red wires which connect the speaker to the motherboard.

Once you've safely detached the two units, now relocate the Antenna. Flip the device and locate the solder points.

Using a Soldering Iron, detach the Antenna and solder a new antenna.