Flash Factory Asus Router (Broadcom) using TFTP

Push reset button and power on the device. Hold the reset button for 5-10 seconds.

Set up static IP using this range

IP : 192.168.1.2-30
Netmask : 255.255.255.0
Gateway : 192.168.1.1

Open up terminal and run this command

tftp
> connect 192.168.1.1
> verbose
> status
> put firmwarename.trx