Linksys WAG54G Bricked (need help JTAG SOLUTION ?)

Discussion in 'Other Linksys Equipment' started by conguitos, Jun 4, 2007.

  1. conguitos

    conguitos Network Guru Member

    Linksys WAG54G Bricked, and i need help

    I update my Wag54g using web interface, but after that it dead!!!

    I thing they have a bad flash programing,

    no network works
    no wireless works
    no tftp work
    no ping work
    no reset work

    i think the only solution it's reprograming the flash using a jtag

    someone can help??? I build a verypoorman jtag, but i don't know the board pinout and software do programing it, i use windows no one have a solution please

  2. conguitos

    conguitos Network Guru Member

    I using that jtag and it's my board sceme, but i dont know the pinout :(

    Attached Files:

  3. masterb

    masterb LI Guru Member

    probably you do not need a jtag to recover your router, because bootloader (Adam2) should still be intact.
    If you use windows u can use this program
    In linux instead, the procedure is really close to this
    Try also searching on google for 'adam2 tftp'

  4. HiSpeed

    HiSpeed Network Guru Member

    Are you sure the bootloader is dead ?
    Did you try a loop during a power on (ping -t ?
  5. conguitos

    conguitos Network Guru Member

    yhes is dead, no network communication :(
  6. conguitos

    conguitos Network Guru Member

    tftp.exe and ping -t don't work,

    Yes i think that i need jtag
  7. conguitos

    conguitos Network Guru Member

    I have this jtag, but i don't have de board pinout

    Attached Files:

  8. masterb

    masterb LI Guru Member

    When my router was bricked it did not answer to ping too, however I was able to recover it via tftp. Consider: tftp is not like ftp. With tftp, no connection to the router is estabilished, but firmware is just "pushed".
    I think you should investigate further about this possibility.

    Anyway, I think it is better for you first to build a console cable, so that you can see if the bootloader has been really wiped out, and if not, it can help you in the recovery. This is the pinout for your router.

    Last, as you are so in love with jtag, the pinout should be the same for all the AR7 devices, and you can find it here and here. On the same site, you can find an utility to flash your router. You need:
    -A flash dump of the bootloader and of the env variable partition.
    -The address where to write them
  9. mstombs

    mstombs Network Guru Member

    I know the Hairydairymaid simple parallel JTAG works with an ADSL2MUE (non wireless single port version of WAG54?) with the JTAG pinout here:-

    But you also need the original flash partition blocks.

    Fully agree the console cable first, I use a Nokia phone cable modified as per these instructions, the 2MUE has a connector on board - no soldering needed.

    JTAG is a last resort, and shouldn't be needed!
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