I had my mother order a Nexus One for me and as she is 75 years old and screwed it up. She ordered: GSM 3G 850/1900/2100 MHz I am in China and want to use it on the China Unicom 3G network. I read that China Unicom uses: WCDMA is the 3G technology used in China by China Unicom. The frequency is 2100 MHz band Would someone kindly tell me if my phone will work on the China Unicom 3G system? Thanks very much.