From Repair Mobile

Installation of a Motorola V120c/ V120e/ V120t/ V120x faceplate or antenna

1. Important: These instructions are to guide you through the process and are to be used at your own risk. Do not poke at the circuit board! Do not have any other power source attached! A T-6 Torx Screwdriver bit will fit those tiny screws on the back of the cell phone to permit removal of the circuit board...
2. Remove all the screws from the back of the phone, a total of 12 screws, with a Torx #6 driver. The antenna connection is now freely accessible for replacement. More details [1] - thanks to aftermarketcellular.com