Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)


I have an RB133 that bricked when doing an upgrade from ROS v3 to ROS v5
( I was getting it ready for my new 5ghz wireless card )
any idea's how to solve this issue ?

I don't mind buying a newer model as the 100mhz was pretty darn slow for my torrents but I would like to get it going again at least as a backup ...

used for sharing ADSL connection plus running wired LAN and 2.4 ghz and 5 ghz wireless networks together and VPN ...

if I short the jumper kernel does not even load
is their any way to ttl it ?
memory test fine and nand formats do not give any error


RouterBOOT-2.6
What do you want to configure?
d - boot delay
k - boot key
s - serial console
o - boot device
u - cpu mode
r - reset configuration
e - format nand
g - upgrade firmware
i - board info
p - boot protocol
t - do memory testing
x - exit setup
your choice: i - board info

Board Info:

Board type: 133
Serial number: 0FFB01C9B9EA
Firmware version: 2.6
CPU frequency: 175 MHz
Memory size: 32 MB
eth1 MAC address: 00:0C:42:14:E1:5D
eth2 MAC address: 00:0C:42:14:E1:5E
eth3 MAC address: 00:0C:42:14:E1:5F

Press any key within 2 seconds to enter setup..
trying bootp protocol... OK
Got IP address: 169.254.194.12
resolved mac address 00:03:47:3F:7F:70
transfer started .......................... transfer ok, time=2.29s
setting up elf image... OK
jumping to kernel code
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)



Do you realy want to format your nand?
that would result in losing all your data
type "yes" to confirm: yes
formating nand... done!


Upgrade firmware options:
e - upgrade firmware over ethernet
s - upgrade firmware over serial port
your choice: e - upgrade firmware over ethernet


trying bootp protocol... OK
Got IP address: 169.254.194.12
resolved mac address 00:03:47:3F:7F:70
transfer started .......................... transfer ok, time=2.33s
invalid upgrade file id

your choice: s - upgrade firmware over serial port


xmodem receiver ready, waiting for data...
press <Ctrl>+X several times to cancel transfer
rade file id

ok fixed it using firmware from here

http://www.routerboard.com/files/rb-2.1 ... 0-2.18.fwf

where does one actually FIND the RB133 firmware ? normally ( google cache saved me this time)

another thing is I broke a bit of the circuitry on the board when moving my earth cable

its D10 near the mounting screw near power inlet

WT5E I think is what it reads ( its cracked in half )