Linksys WTR54GS v2.1

WTR54GS v2.0 and v2.1 devices probably have serial numbers starting with SJH1 (or maybe SJH2).

Specs
Platform Serial Num. = ? FCC ID = Q87-WTR54GSV21 Industry Canada ID = 3839A-WTR54GSV21 CPU Type = Broadcom BCM5350 MIPS Rev = ? CPU Speed = 200 MHz Bus = ? Flash Type = ? Flash Chip = Macronix MX29LV160CBTC-70G Flash Size = 2 MB Max Firmware Size = ? RAM Size = 8 MB RAM Chip = ? nvram Size = 32 kb ETH chip1 = Broadcom BCM5350 Switch = N/A Port-based vlan = ? 802.1q vlan = ? Ethernet Port Count = 1-10/100-WAN 1-10/100-LAN Wired Standard = IEEE 802.3/3u Ethernet interface OUI = none specified boot_wait = ? bootloader = ? Flash Card Socket/Type = Mo SD/MMC Mod Support = Mo Expansion IF types = none specified PoE = Mo Power = 110/240 VAC 1.5A Connector type/size = ? LEDs/Color = ? Size = ? USB = Mo Serial Port = ? JTAG Port = ? Supported by TJTAG/Version = ? Supported by dd-wrt as of = v24 rc6 dd-wrt K2.4 Support = ? dd-wrt K2.6 Support = ? Special Features = ? Radio Wireless Radio = Broadcom BCM2050 WLAN DSP processor = Broadcom BCM5350 Wireless interface OUI = none specified Antenna Connector Type = none MIMO status = ? Wireless Standard = IEEE 802.11b/g 802.11g = 6, 9, 12, 18, 24, 36, 48, 54 Mbps 802.11b = 1, 2, 5.5, 11 Mbps WiFi Operating Frequency = 2.4 GHz Radio cor_rev = ? Radio Capabilities = ? Other Default IP address = ? Default login user = ? Default login password = ? Default SSID = ? OEM = SerComm (T600A-1.0MM) 3rd Party Firmware Support = DD-WRT

Links of Interest

 * On the DD-WRT forums

Flashing DD-WRT
- download and install Sercomm utility - download and unzip WTR upgrade file -- for v1: WTRv1_sercomm.zip -- for v2 and v2.1: WTRv2x_sercomm.zip - download latest -- for v1: RC5 mini or RC5 nokaid -- for v2 and v2.1: RC5 micro - download Linksys TFTP utility


 * 1) Set your PC's IP to 192.168.16.10
 * 2) Log into WTR at 192.168.16.1, password: admin
 * 3) Go to: Administration -> Factory defaults -> "Restore factory Defaults"
 * 4) Click "Continue"
 * 5) Close your browser window
 * 6) Set your PC's IP to 192.168.1.10
 * 7) Start Sercomm "Upgrade Utility"
 * 8) Select your ethernet adapter
 * 9) Press "Browse target" button
 * 10) MAC of your WTR will apear in "Devices List"
 * 11) Press "Files", select: for v1: WTRv1_sercomm.bin; for v2 and v2.1: WTRv2x_sercomm.bin, press OK
 * 12) Press "Upgrade", wait until upgrade completes, press OK
 * 13) Important: WAIT ANOTHER 3 MINUTES
 * 14) Start ping to 192.168.1.1 -t
 * 15) When reply with TTL=100, start tftp (command line or Linksys TFTP utility), transfer RC5 mini or nokaid for v1, for v2 & v2.1 you can only use RC5 micro.
 * 16) Observe ping, when TTL=64, you have dd-wrt installed.
 * 17) CONGRATULATIONS!

PS: If you don't get ping reply at 15, reboot (power cycle) and wait another 3 min.