wrt54gsv5 router

This is JTAG to debrick any JTAG device. Modem, cable boxes, dish boxes routers.
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decadude
Junior Member
Posts: 57
Joined: Fri Sep 07, 2007 7:55 pm

wrt54gsv5 router

Post by decadude »

Copyright http://www.usbjtag.com 2008,2009,2010
USB JTAG NT 0.23
-detect
IDCODE 0535217F
Broadcom BCM5352
IMPCODE 00800904
EJTAG V1, V2.0
DMA supoorted
Unknown flash type!
Report these two value to http://www.usbjtag.com/vbforum 0000,0000
-ldram 9fc00000
-ldram 9fc00000
-program 9fc00000 40000
Use DETECT to detect the flash type
-erase 9fc00000 40000
Use DETECT to detect the flash type


wont let me do anything i have the cfe file to up to it but no love

:(
usbbdm
Junior Member
Posts: 8714
Joined: Mon Jul 18, 2005 9:33 pm

Post by usbbdm »

When you see flash 0,0 you modem is bricked. Use tap commands to fix it. Check
http://www.usbjtag.com/jtagnt/wrt54gv2.php
To see if you can debrick it first.
decadude
Junior Member
Posts: 57
Joined: Fri Sep 07, 2007 7:55 pm

thanks

Post by decadude »

its debrick now one thing though i do not have the kernel image for this thing is the kernel image the original flash image??

thanks
usbbdm
Junior Member
Posts: 8714
Joined: Mon Jul 18, 2005 9:33 pm

Post by usbbdm »

Search the goolge and find CFE tool to generate for V5. That works 100% of time.
decadude
Junior Member
Posts: 57
Joined: Fri Sep 07, 2007 7:55 pm

i have the cfe file

Post by decadude »

-detect
IDCODE 0535217F
Broadcom BCM5352
IMPCODE 00800904
EJTAG V1, V2.0
DMA supoorted
Found Address= 9fc00000 K8D1716UB

its repaired can you sign on to yahoo

thanks bro
decadude
Junior Member
Posts: 57
Joined: Fri Sep 07, 2007 7:55 pm

you see

Post by decadude »

the power light still blinks rapidly the lights are not all on like before though this router is not fully repaired i did follow command sequence though and i get an address now

instead of 0000 0000

so im making headway i dont have the original kernel i dont think nor nvram but i did have teh cfe file
decadude
Junior Member
Posts: 57
Joined: Fri Sep 07, 2007 7:55 pm

Solved

Post by decadude »

after debrick instructions

Debrick the device. (Must use 0.08 and up. This is used when detect give you 0xffff,0xffff or 0x0000,0x0000 as flash type
detect
tap c
tap a ffffffff
(You should now see "DEBUG ON" on the lower right coner).
detect (You should now see the flash type. If not start over again.
ldram cfe
erase cfe
sprogram cfe
(I found slow program works better than the normal program on this modem. Possible because of the watchdog). erase kernel
sprogram kernel
erase nvram

then you have to write kernel image back to device kernel image is same as firmware i was just slightly confused here on this

thanks again man!!

i now have 100% working router again
usbbdm
Junior Member
Posts: 8714
Joined: Mon Jul 18, 2005 9:33 pm

Post by usbbdm »

You are welcome and the router fix is working for sure.
decadude
Junior Member
Posts: 57
Joined: Fri Sep 07, 2007 7:55 pm

yes

Post by decadude »

the router fix is working for certain

basically just debrick


then close program and unplug the router from back

plug router back in open usbjtagnt program then browse to the firmware file with kernel select in drop down list box and open then write

i say this because of watchdog timer and this is how i got it going very easy

oh and i highly recommended your product to guy son dd-wrt forum so look for several sales from those guys they were all curious about your product.

now i need to find you on yahoo one day so i can learn how to use usbjtagnt and i have your older usbbdm with digital cable boxes

its pretty cool i have done 4 of my hardware devices with the usbjtagnt sb4100, sb5100, sb5101, and wrt54gsv5

i have dct 2224 and dct 2500

i am defintely new on messing with those devices though
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