* For Broadcom SoC only
1. Set PC IP address to 192.168.1.9/24.
2. Use tftpd for serve firmware file (w311r.trx).
3. Tear down W311R and solder TP1(SoC RX), TP2(SoC TX) and connect to PC.
4. Open serial port 115200 8n1 no-flow.
5. Press keyboard CTRL + C until it promp CFE>
6. Type "flash -noheader 192.168.1.9:w311r.trx flash0.trx"
7. Finish.
